By means of stereomicroscopy and scanning electronic microscopy(SEM),the fracture mode and mechanism of the broken K18 superalloy cast blade in a supercharger turbo were investigated.

采用体视显微镜、扫描电镜等分析手段对K18合金增压铸造叶片的断形貌与断机制等进行了分析。

Transformation mechanism of carbides and their effect on the stress rupture property were investigated in a Ni-base single crystal superalloy with microcontent of carbon.

研究了微量(0.015%)碳的镍基单晶高温合金在热处理和持久过程中的碳化物演化机制以及各碳化物对合金持久性能的影响。