Influence of RPC Technique on the Microstructure and Mechanical Properties of 800 MPa Grade HSLA Plate Steel

SHANG Chengjia; YANG Shanwu; WANG Xuemin; HE Xinlai; LIU Zhenqing; CHEN Qingping

doi:10.13374/j.issn1001-053x.2002.02.009

Volume 24 Issue 2

Aug. 2021

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Article Navigation > Chinese Journal of Engineering > 2002 > 24(2): 129-132

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

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

doi: 10.13374/j.issn1001-053x.2002.02.009

1. Material Science and Engineering School, UST Beijing, Beijing 100083, China;
2. Wuhan Iron and Steel(Group) Co. Wuhan 430080, China

Received Date: 2001-06-04
Available Online: 2021-08-21

Abstract

Abstract

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.
- HSLA steel,
- TMCP,
- RPC,
- microstructure mechanical properties