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14 不同固溶后处理和双级时效后GH4706合金持久试样断口纵截面组织的KAM图和SEM像

Fig.14 KAM maps (a, c, e, g) and SEM images (b, d, f, h) showing the fracture morphologies of longitudinal sections of the stress rupture test samples at 650 oC and 690 MPa after AA (a, b), FSA (c, d), FA (e, f), and FAs (g, h) solution post-treatments and the two-stage aging treatment (Blue arrows in Figs.14d, f, and h show the cellular microstructures. Inset images in Fig.14f show the locally enlarged views)