CAJ | 학술논문

FGH96是采用损伤容限设计思想研制的新型粉末高温合金，是满足高推比、高燃效发动机使用要求的涡轮盘、环形件和其他热端部件的理想材料。FGH96惯性摩擦焊接头的细晶组织对裂纹扩展的阻碍作用使得其裂纹扩展速率小于母材。母材和接头断裂路径均为穿晶断裂。
FGH96시채용손상용한설계사상연제적신형분말고온합금，시만족고추비、고연효발동궤사용요구적와륜반、배형건화기타열단부건적이상재료。FGH96관성마찰한접두적세정조직대렬문확전적조애작용사득기렬문확전속솔소우모재。모재화접두단렬로경균위천정단렬。
P/M powder superalloy FGH96 is the late-model superalloy designed by the method of dam-age tolerance. FGH96 is a kind of perfect material for turbine disk, loop-forming element and other components assembly of hot end to meet the challenge of high thrust-weight ratio and high efifciency aircraft engine. The rate of fatigue crack propagation of inertia friction welding joint is slower than the matrix because of ifne grain. The dimple of the joint is also less than the matrix. The fracture paths of joint and matrix are transcrystalline fracture.