中子衍射应力分析技术及其应用进展

林皓, 李建, 杨钊龙, 钟圣怡

Recent Progress in Stress Analysis Technology and Application of Neutron Diffraction

LIN Hao, LI Jian, YANG Zhaolong, ZHONG Shengyi

图2 ENGIN-X原位中子衍射测试疲劳实验样品示意图及结果[39]

Fig.2 Illustration and the results of the in-situ neutron diffraction measurements of the fatigue specimen in ENGIN-X[39] (a) arrangement of the fatigue specimen in ENGIN-X for measurements along both longitudinal and transversal directions (2θ—diffraction angle) (b) a comparison of two diffraction spectra obtained from both directions for the pre-fatigued MDF-1 showing the initial texture (MDF—multi-directional forging) (c, d) comparisons of pre- and post-fatigued MDF-1 for longitudinal (c) and transversal (d) directions, respectively (Diffraction spectra were normalised against {100} for longitudinal and {0002} for transversal direction)