Effect of spinning deformation on microstructure evolution and mechanical property of TA15 titanium alloy

摘要：

Hot spinning of tubular workpiece of TA15 alloy was conducted on a CNC spinning machine,and the microstructure evolution during hot spinning and annealing was observed and mechanical properties of spun tubes were tested.The results show that with the increase of spinning pass,the fiber microstructure comes into being gradually in axial direction and the circumferential microstructure also stretches obviously along circumferential direction.At the same time,the tensile strength increases and elongation decreases not only in axial direction but also in circumferential direction.When the reduction ratio of wall thickness rises close to or over 40％,tensile strength increases and elongation decreases more rapidly,which means that tubular workpiece of titanium alloy can be strengthened bi-directionally by power spinning.The ductility of spun workpiece of TA15 alloy could be improved by annealing at the temperature no higher than recrystallization temperature with slight decrease of tensile strength.

关键词： TA15 alloy hot spinning microstructure evolution mechanical property annealing

作者: XU Wen-chen SHAN De-bin WANG Zhen-long YANG Guo-ping Lü Yan KANG Da-chang

作者单位: School of Materials Science and Engineering,Harbin Institute of Technology,Harbin 150001,China School of Mechatronics Engineering,Harbin Institute of Technology,Harbin 150001,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）