基于中子与同步辐射技术的工程材料/部件多尺度残余应力评价

李时磊, 李阳, 王友康, 王胜杰, 何伦华, 孙光爱, 肖体乔, 王沿东

Multiscale Residual Stress Evaluation of Engineering Materials/Components Based on Neutron and Synchrotron Radiation Technology

LI Shilei, LI Yang, WANG Youkang, WANG Shengjie, HE Lunhua, SUN Guang'ai, XIAO Tiqiao, WANG Yandong

图7 同步辐射“成像+衍射”技术联用研究局域应力的原理、装置图、扫描位置及测量结果

Fig.7 The schematic (a) and photo (b) of the synchrotron radiation "imaging + diffraction" combined system, the line scan position and crack tip position (spot size 100 μm × 100 μm, step 50 μm) (c), and the stress (d) and full width of half maximum (FWHM) (e) distributions near the crack tip along lines 1-3 in Fig.7c