TWIP(TWinning Induced Plasticity) steel for automotive application was firstly developed in 1993[1]. The steel showed extra-ordinary combination of strength and elongation and was trial-stamped successfully to several auto parts. However, commercial production was not attempted at that time because manufacturing facilities were not suitable for high Mn TWIP steel. Only recently TWIP steel attracts new attention because the incessantly strengthened regulations on safety and fuel consumption require higher strength steel with superior formability. To commercialize the TWIP steel, chemical composition has been modified and processing conditions have been optimized. It is the objective of this paper to highlight the processing conditions and formability of newly developed TWIP steel.
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