| RPC对800 MPa级低合金高强度钢的影响 |
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| 引用本文： | 尚成嘉,杨善武,王学敏,贺信莱,刘振清,陈庆平.RPC对800 MPa级低合金高强度钢的影响[J].北京科技大学学报,2002,24(2):129-132. |
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| 作者姓名： | 尚成嘉 杨善武 王学敏 贺信莱 刘振清 陈庆平 |
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| 作者单位： | 1. 北京科技大学材料科学与工程学院,北京,100083;2. 武汉钢铁(集团)公司技术中心,武汉,430080 |
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| 基金项目： | 国家重点基础研究发展计划(973计划);G1998061507; |
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| 摘 要： | 利用一种特殊的机械热处理工艺技术,即在控轧终轧后经过一段控制时间与温度的弛豫,使得基体中出现应变诱导析出以及变形奥氏体中缺陷组态重组,在随后的直接淬火或加速冷却过程中, 获得细化的板条贝氏体/马氏体组织.利用该弛豫-析出-控制相变(RPC)技术能得到屈服强度大于800MPa级12mm厚超细贝氏体/马氏体复合组织微合金钢板.
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| 关 键 词： | 字 低合金高强度钢 机械热处理 弛豫-析出-控制相变技术(RPC) 组织与性能 |
| 修稿时间： | 2001年6月4日 |
Influence of RPC Technique on the Microstructure and Mechanical Properties of 800 MPa Grade HSLA Plate Steel |
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| SHANG Chenjia,YANG Shanwu,HEXingai,WANG Xieumin,LIU Zhengqi CHEN Qinping Material Science and Engineering School,UST Beijing,Beijing ,China Wuhan Iron and Steel.Influence of RPC Technique on the Microstructure and Mechanical Properties of 800 MPa Grade HSLA Plate Steel[J].Journal of University of Science and Technology Beijing,2002,24(2):129-132. |
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| Authors: | SHANG Chenjia YANG Shanwu HEXingai WANG Xieumin LIU Zhengqi CHEN Qinping Material Science and Engineering School UST Beijing Beijing China Wuhan Iron and Steel |
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| 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. Follow- ing 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 parame- ters on the microstructure and the mechanical properties was revealed. |
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| Keywords: | HSLA steel TMCP RPC microstructure mechanical properties |
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