High-temperature oxidation behavior of Inconel 693 alloy at 900 °C-1200 °C

被引：6

作者：

Liu, Tianyu ^{[1
,2
]}

Zhao, Qingbin ^{[3
]}

Li, Yingju ^{[1
]}

Meng, Xiangda ^{[3
]}

Feng, Xiaohui ^{[1
]}

Qu, Xiaorui ^{[3
]}

Zheng, Ce ^{[1
]}

Huang, Qiuyan ^{[1
]}

Xu, Wenguo ^{[1
,2
]}

Yang, Yuansheng ^{[1
]}

机构：

[1] Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China

[2] Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China

[3] China Nucl Power Engn Co Ltd, Inst Nucl Chem Ind, Glass Solidificat Technol Ctr, Beijing 100840, Peoples R China

来源：

MATERIALS CHARACTERIZATION | 2023年 / 204卷

基金：

中国国家自然科学基金;

关键词：

Inconel; 693; alloy; Oxidation behavior; Internal oxidation; Vitrified electrodes; Element diffusion; LEVEL LIQUID WASTE; GLASS; VITRIFICATION; CORROSION; NICKEL; PHASE; MELT;

D O I：

10.1016/j.matchar.2023.113216

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Inconel 693 alloy is a potential nuclear waste vitrification electrode material. The resistance to oxidation at high temperatures can affect the service life of the vitrification process equipment. The high-temperature oxidation behavior of Inconel 693 alloy has been investigated at temperatures of 900 degrees C, 1050 degrees C, and 1200 degrees C. The results show that the kinetic curves obeyed the parabolic-rate law at different oxidation temperatures without abnormal turning points. The oxide film showed a multilayer structure and the oxidation products were similar at different temperatures. Differently, a new product of AlN was generated at 1050 degrees C and 1200 degrees C compared with that at 900 degrees C. At 900 degrees C, the surface of the alloy was covered with relatively dense and complete oxide films. As the temperature increased, the oxide films were flaked seriously. The oxidation provided effective oxidation protection after 50 h at 1200 degrees C. In addition, part of the internal oxidation products Al2O3 acted as an effect of pegging Cr2O3 films.

引用

页数：10

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