PDF《β 钛合金斜轧穿孔试验及热处理》

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100 μm 第3期赵恒章等:β 钛合金斜轧穿孔试验及热处理 ・675・ Rotary Piercing Experiment and Heat Treatment of β Titanium Alloy Zhao Hengzhang1,2 , Xi Zhengping2 , Guo Dizi2 , Zhao Bin2 , Yang Yingli

2 , Mao Xiaonan2 , Sun Jun1 , Xiao Lin1 (1. State Key Laboratory for Mechanical Behavior of Materials, Xi'

an Jiaotong University, Xi'

an 710049, China) (2. Northwest Institute for Nonferrous Metal Research, Xi'

an 710016, China) Abstract: A rotary piercing technique is one of the effective methods to fabricate seamless tube of less-deformable alloy. The research on the technique using the rotary piercing method to produce Ti26 high-strength titanium tube was performed. The distribution of strain and parameters during rotary piercing was analyzed. Microstructure, properties and fracture surface of the tube were studied after annealing treatment in argon, induction and vacuum. The results show that the high-quality tube of β titanium alloy can be obtained by the rotary piercing technique, and the induction annealing technique is an efficient heat treatment for the tube. Key words: β titanium alloy;

pipe;

rotary piercing;

uniform heat treatment Corresponding author: Zhao Hengzhang, Cand........