SHANG Chengjia, YANG Shanwu, WANG Xuemin, HE Xinlai, LIU Zhenqing, CHEN Qingping. Influence of RPC Technique on the Microstructure and Mechanical Properties of 800 MPa Grade HSLA Plate Steel[J]. Chinese Journal of Engineering, 2002, 24(2): 129-132. DOI: 10.13374/j.issn1001-053x.2002.02.009
Citation: SHANG Chengjia, YANG Shanwu, WANG Xuemin, HE Xinlai, LIU Zhenqing, CHEN Qingping. Influence of RPC Technique on the Microstructure and Mechanical Properties of 800 MPa Grade HSLA Plate Steel[J]. Chinese Journal of Engineering, 2002, 24(2): 129-132. DOI: 10.13374/j.issn1001-053x.2002.02.009
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Influence of RPC Technique on the Microstructure and Mechanical Properties of 800 MPa Grade HSLA Plate Steel

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  • By a special thermomechanical control process(TMCP-RPC), relaxation for a certain time after control rolling and then direct quenching/accelerated cooling, the strain induced precipitions and defect structure in deformed austenite resulted in refinement of intermediate transformation microstructure. Following this relaxation-precipitation-control phase transformation (RPC) process,800 MPa grade plate steel with an ultra-fine mixture microstmcture of bainite and martensite was obtained. The effect of processing parameters on the microstructure and the mechanical properties was revealed.
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