Effect of γ′ Phase Elements on Oxidation Behavior of Nanocrystalline Coatings at 1050 °C

被引：8

作者：

Wang, Jinlong ^{[1
]}

Yang, Lanlan ^{[2
]}

Yang, Shasha ^{[3
]}

Jia, Yixuan ^{[3
]}

Chen, Minghui ^{[1
]}

Qiao, Yanxin ^{[2
]}

Guo, Pingyi ^{[2
]}

Zhu, Shenglong ^{[3
]}

Wang, Fuhui ^{[1
]}

机构：

[1] Northeastern Univ, Shenyang Natl Lab Mat Sci, Shenyang 110819, Peoples R China

[2] Jiangsu Univ Sci & Technol, Sch Mat Sci & Engn, Zhenjiang 212003, Jiangsu, Peoples R China

[3] Chinese Acad Sci, Inst Met Res, Lab Corros & Protect, Shenyang 110016, Peoples R China

来源：

MATERIALS | 2021年 / 14卷 / 01期

基金：

中国国家自然科学基金;

关键词：

superalloys; oxidation; nanocrystalline coatings; magnetron sputtering; SINGLE-CRYSTAL SUPERALLOY; NI-BASED SUPERALLOY; CORROSION BEHAVIOR; BASE SUPERALLOY; BOND COATS; TA; SUBSTRATE;

D O I：

10.3390/ma14010202

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

To study the effect of gamma ' phase elements on the oxidation behavior of nanocrystalline coatings, two comparable nanocrystalline coating systems were established and prepared by magnetron sputtering. The oxidation experiments of the nanocrystalline coatings on the K38G and N5 superalloys were carried at 1050 degrees C for 100 h, respectively. The chemical composition of the above coatings is the same as the substrate alloy, including the gamma ' elements, such as Al, Ta, and Ti. After serving at a high temperature for certain periods, their oxides participated and then affected the oxidation behavior of the coatings. The Al2O3 scale can be formed on the N5 coating, which cannot be formed on the K38G coating. Tantalum and titanium oxides can be detected on the oxide scale, which ruin its purity and integrity.

引用

页码：1 / 10

页数：10

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