Effect of trace impurity elements on the high-temperature oxidation resistance of a high-purity nickel-based superalloy

被引：24

作者：

Li, Yi ^{[1
,2
]}

Tan, Yi ^{[1
,2
]}

You, Xiaogang ^{[1
,2
]}

Wang, Dinggang ^{[3
]}

Hu, Yebing ^{[4
]}

Song, Shuang ^{[1
,2
]}

Qiang, Jianbing ^{[2
]}

机构：

[1] Dalian Univ Technol, Sch Mat Sci & Engn, Key Lab Mat Modificat Laser Ion & Electron Beams, Minist Educ, Dalian 116024, Peoples R China

[2] Dalian Univ Technol, Sch Mat Sci & Engn, Dalian 116024, Peoples R China

[3] Beijing Inst Aeronaut Mat, Beijing 100095, Peoples R China

[4] Dalian Univ Technol, Sch Mech Engn, Dalian 116024, Peoples R China

来源：

CORROSION SCIENCE | 2023年 / 211卷

基金：

中国国家自然科学基金;

关键词：

Nickel -based superalloy; Oxidation resistance; Impurity; High; -purity; INTERNAL OXIDATION; SULFUR; SEGREGATION; BEHAVIOR; INTERFACES; GROWTH; ALLOY;

D O I：

10.1016/j.corsci.2022.110904

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

This study indicates that the kinetic rate constants of oxidation weight gain and thickening both increase with the increasing content of O, N and S impurities. The oxide layer of the low-purity alloy is not tight and easy to peel off. Internal oxidation becomes more serious with the increase of oxygen solubility. The microscopic mechanism of how impurity atoms affect the oxidation diffusion process was explained, and the models of the oxide layer growth process for high-purity alloys and low-purity alloys were constructed, which provide a reference for the improvement of high-temperature oxidation performance of superalloys in the future.

引用

页数：16

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