Ultrafine Grained Multiphase Steels Fabricated through Annealing of Tempered and Deformed Martensite

摘要：

　　Ultrafine grained (UFG) steels with different second phases were acquired by adopting tempered and deformed martensite as the pre-microstructure before various annealing processes.It was shown that retained austenite have a significant impact on enhancing the ductility of UFG steels.Tempering before the deformation of martensitic microstructure didnt affect the formation of UFG grains which was attributed to the beneficial effects brought by the cementite.The proposed process avoided directly rolling of virgin martensite and thus showed its promising prospect in industrial productions.

关键词： steels annealing mechanical properties ultrafine grained microstructure retained austenite

作者: DING Ran HE JianGuo DAI Zongbiao YANG Zhigang ZHANG Chi CHEN Hao

作者单位: Key Laboratory for Advanced Materials of Ministry of Education, School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China

会议类型: 国际会议

会议名称: the 1st International Conference on Automobile Steel & The 3rd International Conference on High Manganese Steels (第一届国际汽车用钢大会暨第三届高锰钢国际会议)

会议地点: 成都

会议语种:英文

页码: 328-330

在线出版日期: 2016-11-16（万方平台首次上网日期，不代表论文的发表时间）