热处理对一种 γʹ 沉淀强化钴基高温合金拉伸性能的影响

张慧芳, 吴浩, 肖传民, 李奇, 谢君, 李金国, 王振江, 于金江

Effect of Heat Treatment on Microstructure and Tensile Properties of a Typical γʹ-strengthened Co-based Superalloy

ZHANG Huifang, WU Hao, XIAO Chuanmin, LI Qi, XIE Jun, LI Jinguo, WANG Zhenjiang, YU Jinjiang

图12 铸态合金在不同温度拉伸断裂后近断口区域的纵截面形貌

Fig.12 Microstructure of the longitudinal section near the fracture after tensile rupture to fracture of as-cast alloy at different temperatures (a~c) RT, (d~f) 950 oC