K417G合金的环境致脆磨损机理

王振生, 谢威, 彭真, 贺颖茜, 曾阳根

Environment-induced Brittle Wear Mechanism of K417G Alloy

WANG Zhensheng, XIE Wei, PENG Zhen, HE Yingqian, ZENG Yanggen

表4 K417G合金主要组元的代表性氧化物的生成吉布斯自由能

Table 4 Gibbs free energies of formation of oxides of main elements in K417G alloy

Chemical equation △G/kJ·mol-1 2/3Al+H2O=1/3Al2O3+H2 -290.0 1/2Ti+H2O=1/2TiO2+H2 -207.3 2/3Cr+H2O=1/3Cr2O3+H2 -115.6 Ni+H2O=NiO+H2 26 Co+H2O=CoO+H2 22.9