Transformation plasticity in boron-bearing low carbon steel
作者： Hye-Jin Jeong , Moon-Jo Kim , Dong-Wan Kim , Dong-Woo Suh , Jin-Keun Oh
DOI: 10.1007/S12540-015-5215-Y
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摘要: The transformation plasticity (TP), which indicates that permanent strain remains after solid-solid phase transformation, even under much smaller stress than the yield stress, has been described by a vacancy diffusion mechanism in migrating interface during diffusional transformation. In this study, influence of boron (B) addition on TP low carbon high strength steel was investigated through observation B segregation between primary austenite and ferrite using secondary ion mass spectroscopy. at austenite-ferrite confirmed to cause drastic decrease comparison dilatation behavior B-bearing B-free steels tensile force slow cooling, where occurs steel. Furthermore, it also velocity is larger migration given temperature calculation based Fick’s law.
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