焊前预处理对钛合金厚板焊接残余应力的影响

周牧, 王倩, 王延绪, 翟梓融, 何伦华, 李昺, 马英杰, 雷家峰, 杨锐

Effect of Prewelding Pretreatment on Welding Residual Stress of Titanium Alloy Thick Plate

ZHOU Mu, WANG Qian, WANG Yanxu, ZHAI Zirong, HE Lunhua, LI Bing, MA Yingjie, LEI Jiafeng, YANG Rui

图3 未预热和预热钛合金焊接接头的OM像

Fig.3 Low (a, c) and locally high (b, d) magnified OM images of unpreheated (a, b) and preheated (c, d) titanium alloy welded joint (FZ—fusion zone, HAZ—heat affected zone, BM—base metal, Near-BM—near-base metal, Mid-HAZ—middle-heat affected zone, Near-FZ—near-fusion zone)