Effect of Pre-heating Temperature on Microstructure and Properties of22MnB5 Steel Hot Stamping

摘要：

　　The hot stamping process of ultra high strength steel(UHSS) sheet is an innovative way to manufacture the components with a ultra high tensile strength.The sufficiency of martensitic transformation in formed component is affected by pre-heating temperature of blank directly.In this paper, experiments of heating UHSS blanks to 700℃, 800℃, 900℃ and 1000℃ were implemented to investigate the effect of pre-heating temperature on the formed components microstructure and mechanical properties.The results indicate that 900℃ is the best pre-heating temperature for hot stamping process.The microstructure of formed component is all fine and uniform martensite.Meanwhile, tensile strength and vickers hardness raise up to 1580Mpa and450HV, respectively.

关键词： 22MnB5 hot stamping pre-heating temperature microstructure

作者: Ping Li Yusheng Liu Tianzong Gongzi Kemin Xue

作者单位: School of Materials Science and Engineering,Hefei University of Technology,Hefei 230009,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: 262-265

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）