Probing the Characteristic Deformation Behaviors of Transformation-Induced Plasticity Steels

作者: Sheng Cheng , Xun-Li Wang , Zhili Feng , Bjorn Clausen , Hahn Choo

DOI: 10.1007/S11661-008-9604-4

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摘要: The characteristic micromechanical behaviors of contrasting transformation-induced plasticity (TRIP) steels were investigated under tensile loading by in-situ neutron diffraction and transmission electron microscopy in detail. As demonstrated the lattice strain development from diffraction, TRIP steel with ∼10 pct RA, microyielding soft ferrite was responsible for first stress partition, but a second sharing caused effective martensitic transformation. In less than 5 where contribution transformation minor, partition took place virtually between bainite phase. Probing systematic (TEM) observations, we pin down inherent correlation microstructural evolutions mechanism. Based on experimental factors influencing work-hardening behavior are discussed.

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