高温时效对GH4169镍基高温合金性能的影响

郑建军, 张涛, 陈浩, 吕磊

Effect of High-temperature Aging on Microstructure and Mechanical Properties of GH4169 Nickel-based Superalloy

ZHENG Jianjun, ZHANG Tao, CHEN Hao, LV Lei

图9 不同热处理状态试样的拉伸断口形貌

Fig.9 Tensile fracture morphologies of different heat treatment states. Macromorphology (a, d, g), crack initiation zone (b, e, h), and crack propagation zone (c, f, i) after standard heat treatment (a-c), aging treatment for 500 h (d-f) and 1134 h (g-i)