Al-O元素聚集对镍基单晶高温合金氧化影响的第一性原理研究

裴海清, 肖竞博, 李微, 于昊玉, 温志勋, 岳珠峰

First Principles Study on Effect of Al-O Element Aggregation on Oxidation of a Ni-based Single Crystal Superalloy

PEI Haiqing, XIAO Jingbo, LI Wei, YU Haoyu, WEN Zhixun, YUE Zhufeng

表2 采用的镍基单晶高温合金材料化学成分

Table 2 Chemical composition of the Ni-based single crystal superalloy

Element Cr Co W Mo Al Ta Re Nb Hf Ni Mass fraction / % 4.0 9.0 8.0 2.0 5.7 7.0 2.2 1.0 1.0 Bal. Atomic fraction / % 5.0 10.0 3.0 1.0 13.0 2.0 0.7 0.6 0.4 Bal.