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Transformation Induced Plasticity "TRIP" Steel
(section)
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== Economics of TRIP steels == Steel is commonly used because of its strength, formability and low cost relative to other metals. Metals such as titanium, magnesium, and aluminum have a higher strength to weight ratio and could offer significant weight savings in automobile components. However, they are much more expensive due to their lower abundance, higher production costs, and higher machining costs. As well, worldwide supply of these metals is fairly limited. These factors prevent these metals from being commonly used in low end production cars, which the majority of the population drives. TRIP steels do not face any of these difficulties, because they are a low alloy steel. Implementing the intercritical annealing step in steel processing should not prove to be difficult. This means that TRIP steels could be produced for the same price as other high strength steels. The most important barrier TRIP steels have faced in their market integration is the poor galvanizing surface finish. The galvanizing process is used on a large number of automotive components, because it is easy, inexpensive, and effective. With the recent discovery of aluminium as a replacement for silicon, TRIP steels no longer face past difficulties with galvanizing. TRIP steels can now be effectively protected from corrosion in an economically viable way, which means we may be seeing commercial production of TRIP steel products in the near future.
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