Effect of deformation processing parameter on microscopic structure of Ti14 alloy under semi-solid

摘要：

Hot compressive deformation test of Ti-Al-Cu-Si alloy was performed on Gleeble-3500 hot-Simulator over the range of deformation temperature from 1 000 to 1 300 ,strain rate from ℃ 0.005 s.1 to 5 s.1,deformation degree from 40％ to 70％,and samples of d 8 mm×15 mm were used.Change rules of microstructure were mainly studied.The results show that deformation temperature directly influences the nucleation growth and globurizing of grain,and with the temperature rising,the diameter of grain increases,the grain boundary widens.The effect of deformation degree on microstructure varies with deformation temperature.Equivalent diameter of grains shows a trend of falling before elevation with strain rate increasing and temperature rising.

关键词： Ti14 titanium semi-solid deformation microscopic structure

作者: GUO Ping ZHAO Yong-qing WU Wei-lu

作者单位: Titanium Alloy Research Center,Northwest Institute for Nonferrous Metal Research,P.O. Box,51 Xi’an 710016,China

会议类型: 国际会议

会议名称: 2007年国际有色金属大会(International Conference of Nonfereous Materials 2007)(ICNFM)

会议地点: 长沙

会议语种:英文

在线出版日期: 2007-11-28（万方平台首次上网日期，不代表论文的发表时间）