Mechanisms of deformation of austenitic stainless steel at cold rolling

N. Surikova, V. Panin, N. Narkevich, A. Gordienko, M. Volochaev
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Abstract

The structure, mechanical characteristics and mechanisms of plastic deformation of stainless austenitic steel 12Cr15Mn9NiCu after high-temperature cross and screw and cold longitudinal rolling are examined with the help of mechanical testing, X-ray diffraction and electron transmission microscopy. It is shown that deformation martensitic transformations are the main mechanisms of deformation at temperatures less than 20 °C. The modes of thermomechanical treatment, which allow to obtain a good combination of strength and plastic properties in steel have been found out.The structure, mechanical characteristics and mechanisms of plastic deformation of stainless austenitic steel 12Cr15Mn9NiCu after high-temperature cross and screw and cold longitudinal rolling are examined with the help of mechanical testing, X-ray diffraction and electron transmission microscopy. It is shown that deformation martensitic transformations are the main mechanisms of deformation at temperatures less than 20 °C. The modes of thermomechanical treatment, which allow to obtain a good combination of strength and plastic properties in steel have been found out.
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奥氏体不锈钢冷轧变形机理研究
采用力学性能测试、x射线衍射和电子透射电镜等手段,研究了12Cr15Mn9NiCu不锈钢经高温十字螺纹和冷纵轧后的组织、力学特征和塑性变形机理。结果表明,在温度低于20℃时,变形马氏体相变是合金变形的主要机制。找到了使钢的强度和塑性得到良好结合的热处理方法。采用力学性能测试、x射线衍射和电子透射电镜等手段,研究了12Cr15Mn9NiCu不锈钢经高温十字螺纹和冷纵轧后的组织、力学特征和塑性变形机理。结果表明,在温度低于20℃时,变形马氏体相变是合金变形的主要机制。找到了使钢的强度和塑性得到良好结合的热处理方法。
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