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8 不同方法获得的焊接残余应力检测结果对比
Fig.8 Comparisons of the residual stress detection results by different methods
(a-c) unpreheated welding joint by ND method (a), DHD method (b), and RN contour method (c)
(d) preheated welding joint by DHD method