Effect of Ti on the microstructure change and oxidation behavior of Ni plus CrAlYHfSiN composite coatings

被引：4

作者：

Ren, Pan ^{[1
]}

Yang, Yingfei ^{[1
]}

Zhu, Shenglong ^{[2
]}

Wang, Fuhui ^{[3
]}

机构：

[1] Jinan Univ, Inst Adv Wear & Corros Resistant & Funct Mat, Guangzhou 510632, Guangdong, Peoples R China

[2] Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Liaoning, Peoples R China

[3] Northeastern Univ, Corros & Protect Div, Shenyang Natl Lab Mat Sci, Shenyang 110016, Liaoning, Peoples R China

来源：

CORROSION SCIENCE | 2019年 / 150卷

关键词：

Oxidation; High temperature protection; Titanium; Oxides scale; Composite coating; HIGH-TEMPERATURE OXIDATION; CYCLIC OXIDATION; ALLOY COMPOSITES; GROWTH-KINETICS; ALUMINA FILMS; ADHESION; SUPERALLOYS; PERFORMANCE; EVOLUTION; DIFFUSION;

D O I：

10.1016/j.corsci.2019.01.023

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Two composite coatings are manufactured by reactive magnetron sputtering on superalloys. The effect of titanium on oxidation resistance and microstructural change of composite coatings were studied. Titanium in superalloys reacted with [N] ions in composite coating due to interdiffusion. The position of reaction zone was determined by the relative content of [N] ions and metallic aluminum in coating. Doping of titanium in alumina lead to a decrease of charged oxygen vacancies but Ti-A1(center dot) forms in this process. The transportation of Ti-A1(center dot) in oxide scale resulted in the formation of TiO2 and a higher oxidation rate of coating.

引用

页码：54 / 63

页数：10

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