The steel cable of a colliery winding tower

Steel is an alloy made by combining iron and another element, usually carbon. When carbon is used, its content in the steel is between 0.2% and 2.1% by weight, depending on the grade. Other alloying elements sometimes used are manganese, chromium, vanadium and tungsten.^[1] Carbon and other elements act as a hardening agent, preventing dislocations in the iron atom crystal lattice from sliding past one another. Varying the amount of alloying elements and the form of their presence in the steel (solute elements, precipitated phase) controls qualities such as the hardness, ductility, and tensile strength of the resulting steel. Steel with increased carbon content can be made harder and stronger than iron, but such steel is also less ductile than iron.

Alloys with a higher than 2.1% carbon content are known as cast iron because of their lower melting point and good castability.^[1] Steel is also distinguishable from wrought iron, which can contain a small amount of carbon, but it is included in the form of slag inclusions. Two distinguishing factors are steel's increased rust resistance and better weldability.

Though steel had been produced by various inefficient methods long before the Renaissance, its use became more common after more efficient production methods were devised in the 17th century. With the invention of the Bessemer process in the mid-19th century, steel became an inexpensive mass-produced material. Further refinements in the process, such as basic oxygen steelmaking (BOS), lowered the cost of production while increasing the quality of the metal. Today, steel is one of the most common materials in the world, with more than 1.3 billion tons produced annually. It is a major component in buildings, infrastructure, tools, ships, automobiles, machines, appliances, and weapons. Modern steel is generally identified by various grades defined by assorted standards organizations.

Material properties[link]

Iron-carbon phase diagram, showing the conditions necessary to form different phases

Iron is found in the Earth's crust only in the form of an ore, usually an iron oxide, such as magnetite, hematite etc. Iron is extracted from iron ore by removing the oxygen and combining the ore with a preferred chemical partner such as carbon. This process, known as smelting, was first applied to metals with lower melting points, such as tin, which melts at approximately 250 °C (482 °F) and copper, which melts at approximately 1,100 °C (2,010 °F). In comparison, cast iron melts at approximately 1,375 °C (2,507 °F). All of these temperatures could be reached with ancient methods that have been used since the Bronze Age. Since the oxidation rate itself increases rapidly beyond 800 °C (1,470 °F), it is important that smelting take place in a low-oxygen environment. Unlike copper and tin, liquid iron dissolves carbon quite readily. Smelting results in an alloy (pig iron) containing too much carbon to be called steel.^[2] The excess carbon and other impurities are removed in a subsequent step.

Other materials are often added to the iron/carbon mixture to produce steel with desired properties. Nickel and manganese in steel add to its tensile strength and make austenite more chemically stable, chromium increases hardness and melting temperature, and vanadium also increases hardness while reducing the effects of metal fatigue. To prevent corrosion, at least 11% chromium is added to steel so that a hard oxide forms on the metal surface; this is known as stainless steel. Tungsten interferes with the formation of cementite, allowing martensite to form with slower quench rates, resulting in high speed steel. On the other hand, sulfur, nitrogen, and phosphorus make steel more brittle, so these commonly found elements must be removed from the ore during processing.^[3]

The density of steel varies based on the alloying constituents but usually ranges between 7,750 and 8,050 kg/m³ (484 and 503 lb/cu ft), or 7.75 and 8.05 g/cm³ (4.48 and 4.65 oz/cu in).^[4]

Even in the narrow range of concentrations which make up steel, mixtures of carbon and iron can form a number of different structures, with very different properties. Understanding such properties is essential to making quality steel. At room temperature, the most stable form of iron is the body-centered cubic (BCC) structure α-ferrite. It is a fairly soft metallic material that can dissolve only a small concentration of carbon, no more than 0.021 wt% at 723 °C (1,333 °F), and only 0.005% at 0 °C (32 °F). If steel contains more than 0.021% carbon at steelmaking temperatures then it transforms into a face-centered cubic (FCC) structure, called austenite or γ-iron. It is also soft and metallic but can dissolve considerably more carbon, as much as 2.1%^[5] carbon at 1,148 °C (2,098 °F), which reflects the upper carbon content of steel.^[6]

When steels with less than 0.8% carbon, known as a hypoeutectoid steel, are cooled from an austenitic phase the mixture attempts to revert to the ferrite phase, resulting in an excess of carbon. One way for carbon to leave the austenite is for cementite to precipitate out of the mix, leaving behind iron that is pure enough to take the form of ferrite, resulting in a cementite-ferrite mixture. Cementite is a hard and brittle intermetallic compound with the chemical formula of Fe₃C. At the eutectoid, 0.8% carbon, the cooled structure takes the form of pearlite, named after its resemblance to mother of pearl. For steels that have more than 0.8% carbon the cooled structure takes the form of pearlite and cementite.^[7]

Perhaps the most important polymorphic form is martensite, a metastable phase which is significantly stronger than other steel phases. When the steel is in an austenitic phase and then quenched it forms into martensite, because the atoms "freeze" in place when the cell structure changes from FCC to BCC. Depending on the carbon content the martensitic phase takes different forms. Below approximately 0.2% carbon it takes an α ferrite BCC crystal form, but higher carbon contents take a body-centered tetragonal (BCT) structure. There is no thermal activation energy for the transformation from austenite to martensite. Moreover, there is no compositional change so the atoms generally retain their same neighbors.^[8]

Martensite has a lower density than austenite does, so that transformation between them results in a change of volume. In this case, expansion occurs. Internal stresses from this expansion generally take the form of compression on the crystals of martensite and tension on the remaining ferrite, with a fair amount of shear on both constituents. If quenching is done improperly, the internal stresses can cause a part to shatter as it cools. At the very least, they cause internal work hardening and other microscopic imperfections. It is common for quench cracks to form when water quenched, although they may not always be visible.^[9]

Heat treatment[link]

There are many types of heat treating processes available to steel. The most common are annealing and quenching and tempering. Annealing is the process of heating the steel to a sufficiently high temperature to soften it. This process occurs through three phases: recovery, recrystallization, and grain growth. The temperature required to anneal steel depends on the type of annealing and the constituents of the alloy.^[10]

Quenching and tempering first involves heating the steel to the austenite phase, then quenching it in water or oil. This rapid cooling results in a hard and brittle martensitic structure.^[8] The steel is then tempered, which is just a specialized type of annealing. In this application the annealing (tempering) process transforms some of the martensite into cementite, or spheroidite to reduce internal stresses and defects, which ultimately results in a more ductile and fracture-resistant metal.^[11]

Steel production[link]

Iron ore pellets for the production of steel

When iron is smelted from its ore by commercial processes, it contains more carbon than is desirable. To become steel, it must be melted and reprocessed to reduce the carbon to the correct amount, at which point other elements can be added. This liquid is then continuously cast into long slabs or cast into ingots. Approximately 96% of steel is continuously cast, while only 4% is produced as cast steel ingots.^[12] The ingots are then heated in a soaking pit and hot rolled into slabs, blooms, or billets. Slabs are hot or cold rolled into sheet metal or plates. Billets are hot or cold rolled into bars, rods, and wire. Blooms are hot or cold rolled into structural steel, such as I-beams and rails. In modern foundries these processes often occur in one assembly line, with ore coming in and finished steel coming out.^[13] Sometimes after a steel's final rolling it is heat treated for strength, however this is relatively rare.^[14]

History of steelmaking[link]

Bloomery smelting during the Middle Ages

Ancient steel[link]

Steel was known in antiquity, and may have been produced by managing bloomeries, or iron-smelting facilities, in which the bloom contained carbon.^[15]

The earliest known production of steel is a piece of ironware excavated from an archaeological site in Anatolia (Kaman-Kalehoyuk) and is about 4,000 years old.^[16] Other ancient steel comes from East Africa, dating back to 1400 BC.^[17] In the 4th century BC steel weapons like the Falcata were produced in the Iberian Peninsula, while Noric steel was used by the Roman military.^[18] The Chinese of the Warring States (403–221 BC) had quench-hardened steel,^[19] while Chinese of the Han Dynasty (202 BC – 220 AD) created steel by melting together wrought iron with cast iron, gaining an ultimate product of a carbon-intermediate steel by the 1st century AD.^[20][21] The Haya people of East Africa invented a type of high-heat blast furnace which allowed them to forge carbon steel at 1,802 °C (3,276 °F) nearly 2,000 years ago.^[22]

Wootz steel and Damascus steel[link]

Evidence of the earliest production of high carbon steel in the Indian Subcontinent was found in Samanalawewa area in Sri Lanka.^[23] Wootz steel was produced in India by about 300 BC.^[24] Along with their original methods of forging steel, the Chinese had also adopted the production methods of creating Wootz steel, an idea imported into China from India by the 5th century AD.^[25] In Sri Lanka, this early steel-making method employed the unique use of a wind furnace, blown by the monsoon winds, that was capable of producing high-carbon steel.^[26] Also known as Damascus steel, wootz is famous for its durability and ability to hold an edge. It was originally created from a number of different materials including various trace elements. It was essentially a complicated alloy with iron as its main component. Recent studies have suggested that carbon nanotubes were included in its structure, which might explain some of its legendary qualities, though given the technology available at that time, they were produced by chance rather than by design.^[27] Natural wind was used where the soil containing iron was heated up with the use of wood. The ancient Sinhalese managed to extract a ton of steel for every 2 tons of soil^{[citation needed]}, a remarkable feat at the time. One such furnace was found in Samanalawewa and archaeologists were able to produce steel as the ancients did long ago.^[26][28]

Crucible steel, formed by slowly heating and cooling pure iron and carbon (typically in the form of charcoal) in a crucible, was produced in Merv by the 9th to 10th century AD.^[24] In the 11th century, there is evidence of the production of steel in Song China using two techniques: a "berganesque" method that produced inferior, inhomogeneous steel and a precursor to the modern Bessemer process that used partial decarbonization via repeated forging under a cold blast.^[29]

Modern steelmaking[link]

A Bessemer converter in Sheffield, England

Since the 17th century the first step in European steel production has been the smelting of iron ore into pig iron in a blast furnace.^[30] Originally using charcoal, modern methods use coke, which has proven to be a great deal cheaper.^[31][32][33]

Processes starting from bar iron[link]

In these processes pig iron was "fined" in a finery forge to produce bar iron (wrought iron), which was then used in steel-making.^[30]

The production of steel by the cementation process was described in a treatise published in Prague in 1574 and was in use in Nuremberg from 1601. A similar process for case hardening armour and files was described in a book published in Naples in 1589. The process was introduced to England in about 1614.^[34] It was produced by Sir Basil Brooke at Coalbrookdale during the 1610s. The raw material for this were bars of wrought iron. During the 17th century it was realised that the best steel came from oregrounds iron from a region of Sweden, north of Stockholm. This was still the usual raw material in the 19th century, almost as long as the process was used.^[35][36]

Crucible steel is steel that has been melted in a crucible rather than being forged, with the result that it is more homogeneous. Most previous furnaces could not reach high enough temperatures to melt the steel. The early modern crucible steel industry resulted from the invention of Benjamin Huntsman in the 1740s. Blister steel (made as above) was melted in a crucible or in a furnace, and cast (usually) into ingots.^[36][37]

Processes starting from pig iron[link]

A Siemens-Martin steel oven from the Brandenburg Museum of Industry

White-hot steel pouring out of an electric arc furnace

The modern era in steelmaking began with the introduction of Henry Bessemer's Bessemer process in 1858. His raw material was pig iron.^[38] This enabled steel to be produced in large quantities cheaply, thus mild steel is now used for most purposes for which wrought iron was formerly used.^[39] The Gilchrist-Thomas process (or basic Bessemer process) was an improvement to the Bessemer process, lining the converter with a basic material to remove phosphorus. Another improvement in steelmaking was the Siemens-Martin process, which complemented the Bessemer process.^[36]

These were rendered obsolete by the Linz-Donawitz process of basic oxygen steelmaking (BOS), developed in the 1950s, and other oxygen steelmaking processes. Basic oxygen steelmaking is superior to previous steelmaking methods because the oxygen pumped into the furnace limits impurities.^[40] Now, electric arc furnaces (EAF) are a common method of reprocessing scrap metal to create new steel. They can also be used for converting pig iron to steel, but they use a lot of electricity (about 440 kWh per metric ton), and are thus generally only economical when there is a plentiful supply of cheap electricity.^[41]

Steel industry[link]

Steel production by country in 2007

It is common today to talk about "the iron and steel industry" as if it were a single entity, but historically they were separate products. The steel industry is often considered to be an indicator of economic progress, because of the critical role played by steel in infrastructural and overall economic development.^[42]

In 1980, there were more than 500,000 U.S. steelworkers. By 2000, the number of steelworkers fell to 224,000.^[43]

The economic boom in China and India has caused a massive increase in the demand for steel in recent years. Between 2000 and 2005, world steel demand increased by 6%. Since 2000, several Indian ^[44] and Chinese steel firms have risen to prominence like Tata Steel (which bought Corus Group in 2007), Shanghai Baosteel Group Corporation and Shagang Group. ArcelorMittal is however the world's largest steel producer.

In 2005, the British Geological Survey stated China was the top steel producer with about one-third of the world share; Japan, Russia, and the US followed respectively.^[45]

In 2008, steel began trading as a commodity on the London Metal Exchange. At the end of 2008, the steel industry faced a sharp downturn that led to many cut-backs.^[46]

Recycling[link]

Contemporary steel[link]

Bethlehem Steel in Bethlehem, Pennsylvania was one of the world's largest manufacturers of steel before its 2003 closure.

Modern steels are made with varying combinations of alloy metals to fulfill many purposes.^[3] Carbon steel, composed simply of iron and carbon, accounts for 90% of steel production.^[1] High strength low alloy steel has small additions (usually < 2% by weight) of other elements, typically 1.5% manganese, to provide additional strength for a modest price increase.^[47] Low alloy steel is alloyed with other elements, usually molybdenum, manganese, chromium, or nickel, in amounts of up to 10% by weight to improve the hardenability of thick sections.^[1] Stainless steels and surgical stainless steels contain a minimum of 11% chromium, often combined with nickel, to resist corrosion (rust). Some stainless steels, such as the ferritic stainless steels are magnetic, while others, such as the austenitic, are nonmagnetic.^[48]

Some more modern steels include tool steels, which are alloyed with large amounts of tungsten and cobalt or other elements to maximize solution hardening. This also allows the use of precipitation hardening and improves the alloy's temperature resistance.^[1] Tool steel is generally used in axes, drills, and other devices that need a sharp, long-lasting cutting edge. Other special-purpose alloys include weathering steels such as Cor-ten, which weather by acquiring a stable, rusted surface, and so can be used un-painted.^[49]

Many other high-strength alloys exist, such as dual-phase steel, which is heat treated to contain both a ferritic and martensitic microstructure for extra strength.^[50] Transformation Induced Plasticity (TRIP) steel involves special alloying and heat treatments to stabilize amounts of austentite at room temperature in normally austentite-free low-alloy ferritic steels. By applying strain to the metal, the austentite undergoes a phase transition to martensite without the addition of heat.^[51] Maraging steel is alloyed with nickel and other elements, but unlike most steel contains almost no carbon at all. This creates a very strong but still malleable metal.^[52] Twinning Induced Plasticity (TWIP) steel uses a specific type of strain to increase the effectiveness of work hardening on the alloy.^[53] Eglin Steel uses a combination of over a dozen different elements in varying amounts to create a relatively low-cost metal for use in bunker buster weapons. Hadfield steel (after Sir Robert Hadfield) or manganese steel contains 12–14% manganese which when abraded forms an incredibly hard skin which resists wearing. Examples include tank tracks, bulldozer blade edges and cutting blades on the jaws of life.^[54]

Most of the more commonly used steel alloys are categorized into various grades by standards organizations. For example, the Society of Automotive Engineers has a series of grades defining many types of steel.^[55] The American Society for Testing and Materials has a separate set of standards, which define alloys such as A36 steel, the most commonly used structural steel in the United States.^[56]

Though not an alloy, galvanized steel is a commonly used variety of steel which has been hot-dipped or electroplated in zinc for protection against rust.^[57]

Uses[link]

A roll of steel wool

Iron and steel are used widely in the construction of roads, railways, other infrastructure, appliances, and buildings. Most large modern structures, such as stadiums and skyscrapers, bridges, and airports, are supported by a steel skeleton. Even those with a concrete structure will employ steel for reinforcing. In addition, it sees widespread use in major appliances and cars. Despite growth in usage of aluminium, it is still the main material for car bodies. Steel is used in a variety of other construction materials, such as bolts, nails, and screws.^[58] Other common applications include shipbuilding, pipeline transport, mining, offshore construction, aerospace, white goods (e.g. washing machines), heavy equipment such as bulldozers, office furniture, steel wool, tools, and armour in the form of personal vests or vehicle armour (better known as rolled homogeneous armour in this role). Steel was the metal of choice for sculptor Jim Gary and a frequent choice for sculpture by many other modern sculptors.

Historical[link]

A carbon steel knife

Before the introduction of the Bessemer process and other modern production techniques, steel was expensive and was only used where no cheaper alternative existed, particularly for the cutting edge of knives, razors, swords, and other items where a hard, sharp edge was needed. It was also used for springs, including those used in clocks and watches.^[36] With the advent of speedier and thriftier production methods, steel has been easier to obtain and much cheaper. It has replaced wrought iron for a multitude of purposes. However, the availability of plastics in the latter part of the 20th century allowed these materials to replace steel in some applications due to their lower cost and weight.^[59]

Long steel[link]

A steel pylon suspending overhead powerlines

• As reinforcing bars and mesh in reinforced concrete
• Railroad tracks
• Structural steel in modern buildings and bridges
• Wires
• Input to reforging applications

Flat carbon steel[link]

• Major appliances
• Magnetic cores
• The inside and outside body of automobiles, trains, and ships.

Stainless steel[link]

A stainless steel gravy boat

• Cutlery
• Rulers
• Surgical equipment
• Wrist watches

Low-background steel[link]

Steel manufactured after World War II became contaminated with radionuclides due to nuclear weapons testing. Low-background steel, steel manufactured prior to 1945, is used for certain radiation-sensitive applications such as Geiger counters and radiation shielding.

See also[link]

References[link]

Bibliography[link]

• Ashby, Michael F.; Jones, David Rayner Hunkin (1992). An introduction to microstructures, processing and design. Butterworth-Heinemann. 
• Bugayev, K.; Konovalov, Y.; Bychkov, Y.; Tretyakov, E.; Savin, Ivan V. (2001). Iron and Steel Production. The Minerva Group, Inc.. ISBN 978-0-89499-109-7. http://books.google.com/?id=MJdIVtmwuUsC. Retrieved 2009-07-19. .
• Degarmo, E. Paul; Black, J T.; Kohser, Ronald A. (2003). Materials and Processes in Manufacturing (9th ed.). Wiley. ISBN 0-471-65653-4. 
• Gernet, Jacques (1982). A History of Chinese Civilization. Cambridge: Cambridge University Press.
• Smith, William F.; Hashemi, Javad (2006). Foundations of Materials Science and Engineering (4th ed.). McGraw-Hill. ISBN 0-07-295358-6. 

Further reading[link]

• Duncan Burn; The Economic History of Steelmaking, 1867–1939: A Study in Competition. Cambridge University Press, 1961.
• Harukiyu Hasegawa, The Steel Industry in Japan: A Comparison with Britain. 1996.
• J. C. Carr and W. Taplin, History of the British Steel Industry. Harvard University Press, 1962.
• H. Lee Scamehorn, Mill & Mine: The Cf&I in the Twentieth Century. University of Nebraska Press, 1992.
• Needham, Joseph (1986). Science and Civilization in China: Volume 4, Part 1 & Part 3. Taipei: Caves Books, Ltd.
• Warren, Kenneth, Big Steel: The First Century of the United States Steel Corporation, 1901–2001. University of Pittsburgh Press, 2001.

External links[link]

Wikimedia Commons has media related to: Steel

Look up steel in Wiktionary, the free dictionary.

• World Steel Association (worldsteel)
• steeluniversity.org: Online steel education resources from worldsteel and the University of Liverpool
• Extensive picture gallery of iron and steel production methods in North America and Europe
• Interactive knife steel composition chart and comparison graph builder
• Huge archive on steels, Cambridge University
• Steel classification chart

Hans Zimmer
Hans Zimmer receiving his star at the Hollywood Walk of Fame (2010)
Background information
Birth name	Hans Florian Zimmer
Born	(1957-09-12) 12 September 1957 (age 54) Frankfurt am Main, Germany
Genres	Film score, Video game score
Occupations	Film composer, Video game composer, Music producer
Instruments	Piano, Keyboard, MIDI Master Keyboard, Synthesizer, Guitar
Years active	1977–present
Labels	Remote Control Productions
Website	hanszimmer.com

Hans Florian Zimmer, German pronunciation: [hans ˈfloːʁi̯aːn ˈtsɪmɐ]; (born 12 September 1957) is a German film composer and music producer. He has composed music for over 100 films, including award winning film scores for The Lion King (1994), Crimson Tide (1995), Gladiator (2000), The Last Samurai (2003),The Dark Knight (2008), and Inception (2010).

Zimmer spent the early part of his career in the United Kingdom before moving to the United States. He is the head of the film music division at DreamWorks studios, and works with other composers through the company which he founded, Remote Control Productions.^[1]

Zimmer's works are notable for integrating electronic music sounds with traditional orchestral arrangements. He has received four Grammy Awards, two Golden Globes, a Classical BRIT Award, and an Academy Award. He was also named on the list of Top 100 Living Geniuses, published by The Daily Telegraph.^[2]

Early life[link]

Zimmer was born in Frankfurt am Main, Germany. As a young child, he lived in Königstein-Falkenstein, where he played the piano at home, but had piano lessons only briefly as he disliked the discipline of formal lessons.^[3] He moved to London as a teenager, where he attended Hurtwood House school.^[4] In an interview with the German television station ZDF in 2006, he commented: "My father died when I was just a child, and I escaped somehow into the music and music has been my best friend."^[5]

Early career[link]

Zimmer began his career playing keyboards and synthesizers. He worked with The Buggles, a New Wave band formed in 1977 with Trevor Horn, Geoff Downes, and Bruce Woolley. Zimmer can be seen briefly in The Buggles' music video for the 1979 song "Video Killed the Radio Star".^[6] After working with The Buggles, he started to work for the Italian group Krisma, a New Wave band formed in 1976 with Maurizio Arcieri and Christina Moser. He was a featured synthesist for Krisma’s third album, Cathode Mamma. He has also worked with the band Helden (with Warren Cann from Ultravox).^[7] Both Zimmer (on keyboards) and Cann (on drums), were invited to be part of the Spanish group Mecano for a live performance in Segovia (Spain) in 1984. Two songs from this concert were included in the "Mecano: En Concierto" album released in 1985 only in Spain. In 1980 Zimmer co-produced a single, "The History Of The World Part 1," with, and for, UK Punk band The Damned, which was also included on their 1980 LP release, "The Black Album," and carried the description of his efforts as "Over-Produced by Hans Zimmer."

While living in London, Zimmer wrote advertising jingles for Air-Edel Associates.^[7] In the 1980s, Zimmer partnered with Stanley Myers, a prolific film composer who wrote the scores for over sixty films. Zimmer and Myers co–founded the London–based Lillie Yard recording studio. Together, Myers and Zimmer worked on fusing the traditional orchestral sound with electronic instruments.^[8] Some of the films on which Zimmer and Myers worked are Moonlighting (1982), Success is the Best Revenge (1984), Insignificance (1985), and My Beautiful Launderette (1985). Zimmer's first solo score was Terminal Exposure for director Nico Mastorakis in 1987, for which he also wrote the songs. Zimmer acted as score producer for the 1987 film The Last Emperor, which won the Academy Award for Best Original Score.^[7]

One of Zimmer's most durable works from his time in the United Kingdom is the theme song for the television game show Going for Gold, which he composed with Sandy McClelland in 1987. In an interview with the BBC, Zimmer said: "Going For Gold was a lot of fun. It's the sort of stuff you do when you don't have a career yet. God, I just felt so lucky because this thing paid my rent for the longest time."^[9]

Hollywood film scoring[link]

A turning point in Zimmer's career occurred with the 1988 film Rain Man.^[8] Hollywood director Barry Levinson was looking for someone to score Rain Man, and his wife heard the soundtrack CD of the anti-Apartheid drama A World Apart, for which Zimmer had composed the music. Levinson was impressed by Zimmer's work, and hired him to score Rain Man.^[10] In the score, Zimmer uses synthesizers (mostly a Fairlight CMI) mixed with steel drums. Zimmer explained that "It was a road movie, and road movies usually have jangly guitars or a bunch of strings. I kept thinking don't be bigger than the characters. Try to keep it contained. The Raymond character doesn't actually know where he is. The world is so different to him. He might as well be on Mars. So, why don't we just invent our own world music for a world that doesn't really exist?".^[11] Zimmer’s score for Rain Man was nominated for an Academy Award in 1989, and the film won four Academy Awards including Best Picture.^[12]

A year after Rain Man, Zimmer was asked to compose the score for Bruce Beresford's Driving Miss Daisy which, like Rain Man, won an Academy Award for Best Picture. Driving Miss Daisy’s instrumentation consisted entirely of synthesizers and samplers, played by Zimmer. According to an interview with Sound On Sound magazine in 2002, the piano sounds heard within the score come from the Roland MKS–20, a rackmount synthesizer. Zimmer joked: "It didn't sound anything like a piano, but it behaved like a piano."^[13]

1991's Thelma & Louise soundtrack by Zimmer featured the trademark slide guitar performance by Pete Haycock on the "Thunderbird" theme in the film. As a teenager, Zimmer was a fan of Haycock, and their collaboration on film scores includes K2 and Drop Zone.^[14]

For the 1992 film The Power of One, Zimmer traveled to Africa in order to use African choirs and drums in the recording of the score. On the strength of this work, Disney Animation Studios approached Zimmer to compose the score for the 1994 film The Lion King. This was to be his first score for an animated film. Zimmer said that he had wanted to go to South Africa to record parts of the soundtrack, but was unable to visit the country as he had a police record there "for doing 'subversive' movies" after his work on The Power of One. Disney studio bosses expressed fears that Zimmer would be killed if he went to South Africa, so the recording of the choirs was organized during a visit by Lebo M.^[15] Zimmer won numerous awards for his work on The Lion King, including an Academy Award for Best Original Score, a Golden Globe, and two Grammys. In 1997, the score was adapted into a Broadway musical version which won the Tony Award for Best Musical in 1998.^[16][17] As of April 2012^[update], the musical version of The Lion King is the highest grossing Broadway show of all time, having grossed $853.8 million.^[18]

	Crimson Tide - "Roll Tide" noicon A clip from the score of the 1995 film Crimson Tide.
Problems listening to this file? See media help.

Zimmer's score for Crimson Tide (1995) won a Grammy Award for the main theme, which makes heavy use of synthesizers in place of traditional orchestral instruments. For The Thin Red Line (1998), Zimmer said that the director Terrence Malick wanted the music before he started filming, so he recorded six and a half hours of music.^[11] Zimmer's next project was The Prince of Egypt (1998), which was produced by DreamWorks Animation. He introduced Ofra Haza, an Israeli Yemenite singer, to the directors, and they thought she was so beautiful that they designed one of the characters in the film to look like her.^[11]

Work: 2000–present[link]

	Gladiator - "Battle" noicon A clip from the score of the 2000 film Gladiator.
Problems listening to this file? See media help.

In the 2000s, Zimmer has composed scores for Hollywood blockbuster films including Gladiator (2000), Black Hawk Down and Hannibal (2001), The Last Samurai (2003), The Da Vinci Code (2006) The Simpsons Movie (2007), Angels and Demons (2009) and Sherlock Holmes (2009). While writing the score for The Last Samurai, Zimmer felt that his knowledge of Japanese music was extremely limited. He began doing extensive research, but the more he studied, the less he felt he knew. Finally, Zimmer took what he had written to Japan for feedback and was shocked when he was asked how he knew so much about Japanese music.^[11]

During the scoring of The Last Samurai in early 2003, Zimmer was approached by the producer Jerry Bruckheimer, with whom he had worked previously on Crimson Tide, The Rock and Pearl Harbor. Bruckheimer had finished shooting Pirates of the Caribbean: The Curse of the Black Pearl, but was unhappy with the music composed for the film by Alan Silvestri and wanted a replacement score.^[19] Bruckheimer wanted Zimmer to rescore the film, but due to his commitments on The Last Samurai, the task of composing and supervising music for Pirates of the Caribbean: The Curse of the Black Pearl was given to Klaus Badelt, one of Zimmer's colleagues at Media Ventures. Zimmer provided some themes that were used in the film, although he is not credited on screen.^[20][21] Zimmer was hired as the composer for the three subsequent films in the series, Pirates of the Caribbean: Dead Man's Chest (2006), Pirates of the Caribbean: At World's End (2007), and Pirates of the Caribbean: On Stranger Tides (2011), collaborating with Rodrigo y Gabriela.^[22]

For the 2009 film Sherlock Holmes, "The Daily Variety" reported that Zimmer purchased an out-of-tune piano for 200 dollars and used it throughout the scoring process because of its "quirkiness".^[23]

Hans Zimmer in 2008

Zimmer is also noted for his work on the scores of Christopher Nolan's Batman Begins (2005) and The Dark Knight (2008), on which he collaborated with James Newton Howard.^[9] The scores for these films were disqualified from receiving Academy Award nominations for Best Original Score due to too many composers being listed on the cue sheet.^[24] Zimmer succeeded in reversing the decision not to nominate The Dark Knight in December 2008, arguing that the process of creating a modern film score was collaborative, and that it was important to credit a range of people who had played a part in its production.^[25] Zimmer explained his approach to scoring with other musicians in an interview with Soundtrack.net in 2006:

	Hans Zimmer and Lisa Gerrard - "Now We Are Free" noicon A clip from the score of the 2000 film Gladiator.
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"Originally I had this idea that it should be possible to create some kind of community around this kind of work, and I think by muddying the titles - not having "you are the composer, you are the arranger, you are the orchestrator" - it just sort of helped us to work more collaboratively. It wasn't that important to me that I had "score by Hans Zimmer" and took sole credit on these things. It's like Gladiator: I gave Lisa Gerrard the co-credit because, even though she didn't write the main theme, her presence and contributions were very influential. She was more than just a soloist, and this is why I have such a problem with specific credits."^[26]

Zimmer is also composing the score for The Dark Knight Rises, the final installment of Christopher Nolan's Batman trilogy. The film is scheduled for release in July 2012.^[27]

Zimmer works with other composers through his company Remote Control Productions, formerly known as Media Ventures. His studio in Santa Monica, California has an extensive range of computer equipment and keyboards, allowing demo versions of film scores to be created quickly.^[28] His colleagues at the studio have included Harry Gregson-Williams, James Dooley, Geoff Zanelli, Henning Lohner, Steve Jablonsky, Mark Mancina, John Van Tongeren, John Powell and Thomas J. Bergersen.

In October 2000, Zimmer performed live in concert for the first time with an orchestra and choir at the 27th Annual Flanders International Film Festival in Ghent.^[29] He has received a range of honors and awards, including the Lifetime Achievement Award in film Composition from the National Board of Review, the Frederick Loewe Award in 2003 at the Palm Springs International Film Festival, ASCAP’s Henry Mancini Award for Lifetime Achievement, and BMI's Richard Kirk Award for lifetime achievement in 1996. Recent work includes the Spanish language film Casi Divas,^[30] Sherlock Holmes, The Burning Plain (2009), and Inception (2010). He composed the theme for the television boxing series The Contender, and worked with Lorne Balfe on the music for Call of Duty: Modern Warfare 2, which was his first video game project.^[31] Zimmer also collaborated with composers Borislav Slavov and Tilman Sillescu to create the score for the video game Crysis 2.^[32]

In December 2010, Zimmer received a star on the Hollywood Walk of Fame. He dedicated the award to his publicist and long term friend Ronni Chasen, who was shot dead in Beverly Hills the previous month.^[33]

Zimmer composed and produced the music for the 84th Academy Awards with Pharrell Williams of The Neptunes.^[34]

Zimmer lives in Los Angeles with his wife Suzanne, and has four children.^[35][36]

Discography and awards[link]

References[link]

External links[link]

	Book: Hans Zimmer
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Wikimedia Commons has media related to: Hans Zimmer

• Official website
• Hans Zimmer at the Internet Movie Database
• Interview with Hans Zimmer in Film Score Monthly
• Interview with Hans Zimmer about Sherlock Holmes from C Music TV
• Focus.De