CrO2(OH)2 volatilization rate and oxidation behavior prediction of the NiCr coating in air-H2O environment at 650°C

被引：21

作者：

Huang, Wenlang ^{[1
]}

Huang, Taihong ^{[1
]}

Song, Peng ^{[1
]}

Chen, Rong ^{[1
]}

Zheng, Biju ^{[1
]}

Wang, Chengxi ^{[1
]}

Li, Chao ^{[1
]}

Lu, Jiansheng ^{[1
]}

机构：

[1] Kunming Univ Sci & Technol, Fac Mat Sci & Engn, Kunming 650093, Yunnan, Peoples R China

来源：

CORROSION SCIENCE | 2021年 / 182卷

基金：

中国国家自然科学基金;

关键词：

Coating; Weight loss; Kinetic parameters; Oxidation;

D O I：

10.1016/j.corsci.2021.109303

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The volatilization rate and lifetime prediction of the NiCr coatings produced by high-velocity oxygen-fuel were investigated at 650 degrees C in air containing 20 % water vapor. Water vapor could significantly accelerate the consumption of Cr which reduced the service time of the coatings. Oxidation kinetic rate of the NiCr coating and volatilization rate of the CrO2(OH)(2) were calculated using classical gas transport theory in the viscous-flow regime. According to the practical oxidation kinetic rate, we built a relationship to predict the lifetime of the NiCr coating.

引用

页数：10

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