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8 不同固溶后处理和双级时效后GH4706合金力学性能对比

Fig.8 Comparisons of mechanical properties of GH4706 alloy after different solution post-treatments and the two-stage aging treatment (a) tensile properties at room temperature (Rm—ultimate tensile strength, Rp0.2—yield strength, A—elongation, Z—reduction of area) (b) impact toughness at room temperature (c) stress rupture properties at 650 oC and 690 MPa (τ—stress rupture life, δ—elongation)