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9 同步辐射透射几何下基于差分光阑技术的深度应力表征方法

Fig.9 The schematic (I(m) and I(m + 1) are the diffracted intensities of the step m and (m + 1) with Pt wire translation, respectively) (a), device photo (b), and simulation results (c1-c4) of the deep region stress gradient characterization based on differential aperture technology using transmission geometry (c1) two-dimensional diffraction pattern before depth analysis (c2) the one-dimensional diffraction spectrum (c3) diffraction peaks at different depths (711) after depth analysis (c4) contrast between deep analytical elastic strain gradient and preset values