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11 未预热和预热焊接接头HAZ的SEM像及EPMA像

Fig.11 SEM images (left) and corresponding EPMA images (right) of Mid-HAZ (a, c) and Near-BM (b, d) in unpreheated (a, b) and preheated (c, d) welding joints