固溶后处理对GH4706合金时效析出相演化及力学性能的影响

王冲, 王磊, 段然, 田强, 黄烁, 赵光普

Effects of Solution Post-Treatment on Precipitation Evolution During Aging of GH4706 Alloy and Its Mechanical Properties

WANG Chong, WANG Lei, DUAN Ran, TIAN Qiang, HUANG Shuo, ZHAO Guangpu

图9 不同固溶后处理和双级时效后GH4706合金冲击断口表面形貌的SEM像

Fig.9 Fracture surface SEM images of impact samples after AA (a1-a3), FSA (b1-b3), FA (c1-c3), and FAs (d1-d3) solution post-treatments and the two-stage aging treatment with different magnifications (Red arrows in Figs.9a1-d1 denote the directions of cracks propagation, and yellow arrows in Figs.9c3 and d3 denote the intergranular fracture plane)