TRIP-Assisted Steels?

H.K.D.H. Bhadeshia

Abstract

The role of transformation--induced plasticity in Fe-Mn-Si-C steels intended for automobiles is investigated. The high uniform ductility associated with these alloys is often attributed to the transformation of retained austenite present in the microstructure. However, calculations indicate that the maximum contribution of transformation--induced plasticity is only a small fraction of the observed elongation in a tensile test. The majority of the uniform elongation has its origins in the composite deformation behaviour of the major phases.

ISIJ International, Vol. 42 (2002) 1059-1060.

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