750℃时效对GH4742合金疲劳裂纹扩展行为的影响
张星硕,王磊,刘杨,王斯堃

Effect of Aging Treatment at 750℃ on Fatigue Crack Propagation Behavior of GH4742 Superalloy
Xingshuo ZHANG,Lei WANG,Yang LIU,Sikun WANG
表2 750℃时效GH4742合金室温拉伸性能和硬度值
Table 2 The RT tensile property and hardness of GH4742 superalloy aged at 750℃
Sample

Yield strength

/MPa

Tensile strength/MPa

Hardness

(HB)

SHT9261419368
A9761447383
B9551420378
C9031415373