Ghosh Chowdhury, S and Munda, Parikshit and Singh, S R (2010) Development of Advanced High Strength Steels (AHSS) for Automobiles: A Review on Design Criteria. In: International Conference : Automotive Materials & Manufacturing - 2010, Oct 2010, Pune.
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Improved fuel economy and emissions, leads to a growing trend to produce steels with high specific strength in vehicles. The high-strength, high-ductility characteristics of AHSS come from the metals’ unique microstructures. Where most steels have primarily one microstructural phase, like ferrite, AHSS typically has a combination of martensite, bainite, austenite and ferrite phases. Each microstructural phase has a different crystalline or molecular structure. For instance, ferrite has a body-centered-cubic (BCC) structure, and martensite has a body-centered-tetragonal structure. Each structure has its own set of physical properties due to the forces within the crystals and the densities with which atoms are packed in a crystal cell. Various research studies have shown that proper application of AHSS can cut a vehicle’s weight between 10 and 25%. When fuel economy is paramount, the 5% fueleconomy boost a 10% reduction in weight provides is a nice carrot.
|Item Type:||Conference or Workshop Item (Paper)|
|Uncontrolled Keywords:||Twip steel,AHSS,Trip steel, Martensite|
|Divisions:||Material Science and Technology|
|Deposited By:||Mr. Parikshit Munda|
|Deposited On:||23 Jul 2011 11:29|
|Last Modified:||10 Oct 2011 16:44|
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