粉末高温合金FGH4096的疲劳小裂纹扩展行为

杨秦政, 杨晓光, 黄渭清, 石多奇

Propagation Behaviors of Small Cracks in Powder Metallurgy Nickel-Based Superalloy FGH4096

YANG Qinzheng, YANG Xiaoguang, HUANG Weiqing, SHI Duoqi

图9 RH和RL试样中小裂纹平行于孪晶界扩展和穿过孪晶扩展的IPF

Fig.9 IPF-Y colored SEM images of the small crack path that paralleled to the trace of twin grain boundary in RL specimen (a) or crossed the twin in RH specimen (b)