Effect of Heat Treatment on Microstructure and Mechanical Properties of Plastic Mould Steel

摘要：

The mechanical properties and microstructure of plastic mould steel with the microstructure of martensite and bainite-martensite (B/M) were detailed investigated. The results show that the air-cooled bainite-martensite possesses a better combination of strength and toughness compared with water quenched full martensite after tempering within some intermediate temperature range. A mixed microstructure of bainite-martensite retards the softening of the steel during tempering and also retards the tempered martensite embrittlement onset temperature. The stable retained austenite in B/M improve the toughness of the steel after tempering at intermediate temperature range.

关键词： heat treatment mechanical properties mold steel

作者: LIU Cun-ping YUAN Yong-fu ZHOU Wen-chao WANG Zhi-hai YANG Yu

作者单位: Yibin Vocational and Technical College,Yibin,China

会议类型: 国际会议

会议名称: The Fourth Asian Conference on Heat Treatment and Surface Engineering(第四届亚洲热处理及表面工程大会)

会议地点: 北京

会议语种:英文

页码: 319-321

在线出版日期: 2009-10-27（万方平台首次上网日期，不代表论文的发表时间）