Microstructure Evolution Behavior of 22MnB5 Pickling Plate During Double Cold Reduction and Rapid Heating Process

摘要：

　　The microstructure evolution during rapid induction heating process of 22MnB5 steel after double cold rolling was investigated, and the effects of deformation, heating temperature and heating rate on austenitic grain size and micro-hardness of quenched samples were discussed.The results show that the austenite begins to when heated to 850 ℃ and the austenite grains grow significantly when heated to 950 ℃ during rapid induction heating process.With the deformation increasing, the austenite grain size decreases, and the austenite grain refinement weakened when the deformation increases to a certain extent; but the influence of cold rolling on micro-hardness after quenching is not significant.In addition, there is little effect of heating rate on the 22MnB5 steel austenite with large cold deformation and a certain effect on the micro-hardness after quenching.

关键词： High-strength steel double cold reduction induction heating austenite grain

作者: S.J.Yao L.Sun H.H.Zhu G.D.Wang

作者单位: School of Materials Science and Engineering,Harbin Institute of Technology at Weihai,Weihai,P.R.Chin The State Key Laboratory of Rolling and Automation,Northeastern University,Shenyang,P.R.China

会议类型: 国际会议

会议名称: 2014 International Conference on Hot Stamping of UHSS(2014高强度钢热冲压成形国际会议)

会议地点: 重庆

会议语种:英文

页码: 104-111

在线出版日期: 2014-08-21（万方平台首次上网日期，不代表论文的发表时间）