Investigation of Precipitation in a Aging Hardened Plastic Mould Steel

摘要：

　　The aging hardened plastic mould steel 10Ni3MnCuAl after aging at 510℃ is investigated by scanning electron microscope (SEM),transmission electronic microscope (TEM) and three dimensional atom probe (3DAP).The results show that its microstructure is granular bainite after soluted.Its aging hardening is mainly due to the precipitation of a high density,nanoscale and fully coherent NiAl precipitation with the B2 structure for 4 h.Clusters associated precipitates from 3DAP results show that its aging hardening derives from multicomponent precipitate containing Fe,Ni,Al,Mn and Cu,and concentration of Fe decreases with the aging time,while that ofNi,Al,Mn and Cu are opposite,and the ratio between Ni and Al are roughly 1.

关键词： precipitate aging hardened steel TEM 3DAP

作者: Yi Luo Xiaochun Wu

作者单位: Research and Development Center of Wuhan Iron and Steel(Group)Company, 430080, China School of Materials Science and Engineering, Shanghai University, 200072, China

会议类型: 国际会议

会议名称: the 2012 International Conference on Frontiers of Nanoscience and Technology(2012年纳米科学与技术国际会议(ICFNST 2012))

会议地点: 香港

会议语种:英文

页码: 152-155

在线出版日期: 2012-07-26（万方平台首次上网日期，不代表论文的发表时间）