Effect of Heat Treatment on Microstructure and Mechanical Properties of Ti-6A1-4V ELI Alloy Plate

摘要：

The effects of heat treatment on the microstructures and mechanical properties of Ti-6A14V ELI plate were investigated The results show that the primary trphase decreases, strength increases and ductility decreased with the solution temperature increasing when the TC4ELI alloy is heat treated in the two phase region. In addition, the faster the cooling rate ,the more α phase will be obtained,and the strengthening effect will be increased. With the increase of aging temperature and time, the amount of secondary α-phase increases and size becomes coarse, the yield strength increases up to the peak and then decreases,but the ductility has a little change. The best heat treatment system is 955℃/lh AC +550℃/8h AC,and the specimen will get a better mechanical properties under the heat treatment.

关键词： Ti-6Al-4V ELI alloy plate microstructure mechanical properties

作者: Lei Wenguang Mao Xiaonan Yu Lanlan Lin Hai

作者单位: Northwest Institute for Nonferrous Metal Research ,Xian 710076,China

会议类型: 国际会议

会议名称: The 12th World Conference Titanium(第十二届世界钛会 Ti-2011)

会议地点: 北京

会议语种:英文

页码: 1038-1041

在线出版日期: 2011-06-19（万方平台首次上网日期，不代表论文的发表时间）