Oxidation characteristics of Fe22Cr5Al3Mo-xNb alloys in high temperature steam

被引:32
作者
Zhang, Wenhuai [1 ]
Qian, Yue [1 ]
Sun, Rongrong [1 ]
Lin, Xiaodong [1 ]
Yao, Meiyi [1 ]
Qiu, Yunlong [2 ]
Yang, Jian [3 ]
Cheng, Guoguang [4 ]
Dong, Jianxin [5 ]
机构
[1] Shanghai Univ, Inst Mat, Shanghai 200072, Peoples R China
[2] Zhongxing Energy Equipment Co LTD, Haimen City 226126, Jiangsu, Peoples R China
[3] Shanghai Univ, Sch Mat Sci & Engn, State Key Lab Adv Special Steel, Shanghai 200444, Peoples R China
[4] Univ Sci & Technol Beijing, State Key Lab Adv Met, Beijing 100083, Peoples R China
[5] Univ Sci & Technol Beijing, Sch Mat Sci & Engn, Beijing 100083, Peoples R China
基金
中国国家自然科学基金;
关键词
FeCrAl alloy; Loss of coolant accident; Oxide characteristic; Microstructure; Niobium; ACCIDENT-TOLERANT FUELS; FE-CR-AL; FECRAL ALLOYS; MECHANICAL-PROPERTIES; ION-IMPLANTATION; ALUMINA SCALE; NUCLEAR-FUEL; WATER-VAPOR; BEHAVIOR; NB;
D O I
10.1016/j.corsci.2021.109722
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The oxidation behaviors of Fe22Cr5Al3Mo-xNb (x=0.5, 1.0, 2.0 wt%) alloys under simulated loss of coolant accident (LOCA) conditions at 1000 and 1200 degrees C were investigated. The results revealed that fine granular oxides and a ridged oxide film were formed on the FeCrAl alloys at 1000 and 1200 degrees C, respectively. The oxide film was composed of alpha-Al2O3, alpha-Cr2O3 and a trace amount of FeO at 1000 degrees C but only consisted of alpha-Al2O3 at 1200 degrees C due to volatilization of Fe and Cr oxides. Nb addition decreased the weight gains and improved the oxidation resistance of FeCrAl alloys under simulated LOCA condition.
引用
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页数:10
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