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

表2 不同固溶后处理和双级时效后GH4706合金中胞状组织的体积分数和γ'/γ''相的尺寸及体积分数

Table 2 Volume fractions of cellular microstructure and precipitation sizes and volume fractions of γ'/γ'' phase in GH4706 alloy after different solution post-treatments and the two-stage aging treatment

Solution post-treatment fc / % d1 / nm f1 / % d2 / nm f2 / % AA - - - 21.5 26.5 FSA 4.1 15.4 12.0 21.1 24.2 FA 1.0 18.8 16.8 21.7 24.8 FAs 1.8 21.3 14.9 50.7 24.7