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Title

EFFECT OF DEFORMATION TEMPERATURE ON THE MECHANICAL BEHAVIOR OF A NEW TRIP/TWIP STEEL CONTAINING 21% MANGANESE

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 Start Page 16 | End Page 19

Abstract

 In recent years, TRIP/TWIP steels have been the focus of great attention thanks due to their excellent tensile strength-ductility combination. The compression tests were performed at different temperatures from 25 to 1000oC to study the mechanical behavior of advanced austenitic steel with 21% manganese plus bearing Ti. The results indicated that the plastic deformation is controlled by deformation-induced martensite and mechanical twinning from 25 to 100oC. However, at temperatures 200 to 1000°C the deformation twinning was merely observed. The occurrence of mechanical twinning at such high temperatures is a first-time observation in high manganese austenitic steels. Such mechanical twins led to grain refinement via grain partitioning.

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