某燃气轮机燃烧室合金高温蒸汽氧化行为研究
梁志远, 张超, 曲劲宇, 何建元, 郭亭山, 徐一鸣

Oxidation Behavior in Air-steam Mixed Atmosphere at 1000oC of Four Typical High-temperature Alloys for Gas Turbine
LIANG Zhiyuan, ZHANG Chao, QU Jinyu, HE Jianyuan, GUO Tingshan, XU Yiming
表6 1000℃下主要合金元素与H2O反应的Gibbs自由能改变
Table 6 Gibbs free energy changes of the reactions of main alloying elements with H2O at 1000oC

No.

Chemical reaction equation

Gibbs free energy

ΔG/kJ

1Ni + H2O(g) = NiO + H2(g)51.2
2Mn + H2O(g) = MnO + H2(g)-114.1
32Cr + 3H2O(g) = Cr2O3 + 3H2(g)-267.6
4Cr+3/2O2(g)+H2O(g)=CrO2(OH)2(g)-308.2
52Al + 3H2O(g) = Al2O3 + 3H2(g)-739.0