(洛阳船舶材料研究所，洛阳 471039)
摘 要: 对采用焊后退火、焊后振动时效处理、超声冲击、机械锤击4种去应力处理方法处理的钛合金对接接头与不采用去应力处理的对接接头进行残余应力测试和力学性能对比分析，得出不同的去应力方式对焊接接头残余应力和力学性能的影响规律，确定适合钛合金焊缝消应处理的最佳方法。
关键字: 钛合金；焊接接头；残余应力；消应方法
（Luoyang Ship Material Research Institute, Luoyang 471039, China）
Abstract:The weld joints were treated by four methods of relieving stress, i.e., post annealing, aging treatment vibrantly after welding, ultrasonic impact layer by layer during welding, hammering layer by layer during welding, and they were compared with weld joints in titanium without relieving stress. Residual stress testing and mechanical property were analyzed. The results show that different relieving stress methods contribute to different regularities of residual stress and mechanical properties. The best option of relieving stress about titanium welding joints is established.
Key words: titanium; weld joint; residual stress; relieving stress
