K4169合金循环加载过程中的微观组织演变
吴贇1, 刘雅辉1, 康茂东1,2(), 高海燕1,2, 王俊1,2, 孙宝德1,2
Microstructure Evolution of K4169 Alloy During Cyclic Loading
WU Yun1, LIU Yahui1, KANG Maodong1,2(), GAO Haiyan1,2, WANG Jun1,2, SUN Baode1,2

图10. δ-Ni3Nb相变形和断裂机制的SEM和TEM分析
(a) SEM image of branch-fractured δ-Ni3Nb phase
(b) SEM image of slip lines presenting on δ-Ni3Nb surface of the specimen with average 5457 cyc
(c) bright-field TEM image of branch-fractured δ-Ni3Nb
(d) HRTEM image, local fast Fourier transform (FFT) and inverse FFT images (insets) of δ-Ni3Nb phase after fatigue

Fig.10. Deformation and fracture analyses of δ-Ni3Nb phase by SEM and TEM