On the deformation mechanism of twinning-induced plasticity steel |
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| Authors: | XD Wang BX Huang |
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| Institution: | 1. School of Materials Science and Engineering, Shanghai Jiao Tong University , Shanghai, China;2. School of Materials Science and Engineering, Shanghai Jiao Tong University , Shanghai, China;3. School of Chemistry and Chemical Engineering, Liaocheng University , Liaocheng, China |
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| Abstract: | The microstructures of an Fe–20Mn–2Si–2Al Twinning-Induced Plasticity (TWIP) steel deformed at different temperature were characterized by X-ray Diffraction (XRD) and Transmission Electron Microscopy (TEM). Based on microstructural features revealed at various characteristic temperature regions of deformation, the necessary and sufficient conditions of TWIP effect are proposed. Likewise, the competitive characteristic deformation mechanism occurring in this TWIP steel is presented and discussed qualitatively in terms of phase stability and stacking fault energy of the austenitic matrix. |
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| Keywords: | deformation mechanisms microstructural characterization XRD TEM twinning |
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