Oxidation Behavior of Intermetallic Phase and Its Contribution to the Oxidation Resistance in Fe-Cr-Zr Ferritic Alloy

doi:10.3390/met12050827

IMR OpenIR

	Oxidation Behavior of Intermetallic Phase and Its Contribution to the Oxidation Resistance in Fe-Cr-Zr Ferritic Alloy
	Chen, Shenghu; Rong, Lijian
通讯作者	Chen, Shenghu(chensh@imr.ac.cn)
	2022-05-01
发表期刊	METALS
卷号	12 期号:5 页码:14
摘要	Oxidation resistance of the ferritic Fe-Cr-W-Zr alloy with dispersed Fe2Zr phase were investigated in stagnant air and in static oxygen-saturated liquid Pb-Bi eutectic separately considering the service environment in the advanced generation IV nuclear reactors. A duplex structure including an outer Fe2O3 layer and an inner (Fe,Cr,Zr)(2)O-3 layer is developed after oxidation in air, while a three-layered structure consisting of outer magnetite layer, inner Fe-Cr spinel layer, and internal oxidation zone is formed after oxidation in liquid Pb-Bi eutectic. The dispersed Fe2Zr phase shows delayed oxidation with respect to the alpha-Fe in air and in liquid Pb-Bi eutectic, which significantly affects the oxidation behaviors of the alloy. After oxidation in air at 923 K, the incorporated Fe2Zr phase in the scale would obstruct the diffusion of metal/oxygen across the scale, resulting in the nonuniform oxidation behavior. After oxidation in static oxygen-saturated liquid Pb-Bi eutectic at 823 K, a reduction in the Fe supply to the magnetite/Fe-Cr spinel interface is present adjacent to the Fe2Zr phase, which might lead to the creation of cavities in the outer magnetite layer with prolonged oxidation time.
关键词	Fe-Cr-W-Zr alloy Fe2Zr phase oxidation air liquid Pb-Bi eutectic
资助者	National Natural Science Foundation of China ; Youth Innovation Promotion Association, CAS ; Natural Science Foundation of Liaoning Province
DOI	10.3390/met12050827
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[51871218] ; Youth Innovation Promotion Association, CAS[2018227] ; Natural Science Foundation of Liaoning Province[2020-MS-010]
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000803671800001
出版者	MDPI
引用统计	被引频次：2[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/174219
专题	中国科学院金属研究所
通讯作者	Chen, Shenghu
作者单位	Chinese Acad Sci, Inst Met Res, Key Lab Nucl Mat & Safety Assessment, 72 Wenhua Rd, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Chen, Shenghu,Rong, Lijian. Oxidation Behavior of Intermetallic Phase and Its Contribution to the Oxidation Resistance in Fe-Cr-Zr Ferritic Alloy[J]. METALS,2022,12(5):14.
APA	Chen, Shenghu,&Rong, Lijian.(2022).Oxidation Behavior of Intermetallic Phase and Its Contribution to the Oxidation Resistance in Fe-Cr-Zr Ferritic Alloy.METALS,12(5),14.
MLA	Chen, Shenghu,et al."Oxidation Behavior of Intermetallic Phase and Its Contribution to the Oxidation Resistance in Fe-Cr-Zr Ferritic Alloy".METALS 12.5(2022):14.