短程有序对高层错能Cu-Mn合金拉-拉疲劳变形行为及损伤机制的影响

韩冬, 张炎杰, 李小武

Effect of Short-Range Ordering on the Tension-Tension Fatigue Deformation Behavior and Damage Mechanisms of Cu-Mn Alloys with High Stacking Fault Energies

HAN Dong, ZHANG Yanjie, LI Xiaowu

图6 Cu-15%Mn和Cu-20%Mn合金在应力幅为115 MPa下表面损伤特征的SEM像

Fig.6 SEM images showing the damage features of Cu-15%Mn (a) and Cu-20%Mn (b) alloys at stress amplitude of 115 MPa (Arrow in Fig.6a shows the crack propagation direction, and sign A represents the position of the crack turning to the intergranular propagation, inset in Fig.6b shows the locally enlarged image)