Effect of Fe on the Precipitate Characteristics and Out-of-pile Corrosion Behavior of Zr-1Nb-xFe Alloys

被引：2
|
作者：
Wang, Rongshan [1 ]
Weng, Likui [1 ]
Zhang, Yanwei [1 ]
Geng, Jianqiao [1 ]
Du, Chenxi [1 ]
Liu, Erwei [1 ]
机构：
[1] Suzhou Nucl Power Res Inst, Met Component Life Assessment Dept, Suzhou 215004, Peoples R China
来源：
ENERGY AND ENVIRONMENT MATERIALS | 2013年 / 743-744卷
关键词：
Zr alloy; Precipitate characteristics; Corrosion behavior; OXIDE CHARACTERISTICS; PHASE; NB; ZR; PARTICLES;
D O I：
10.4028/www.scientific.net/MSF.743-744.1
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
The effects of Fe addition on the precipitate characteristics and out-of-pile corrosion behavior of Zr-1Nb-xFe alloys, with x=0, 0.2 and 0.4 respectively, were investigated. The experimental results showed that the alloy with the composition of Zr-1Nb-0.4Fe had the best corrosion resistance and the alloy with the composition of Zr-1Nb-0.2Fe had the worst corrosion resistance. The relationship between the corrosion behavior and the microstructures including precipitate characteristics was discussed, and the elements contents, area fraction, as well as the mean diameter of the precipitate were analyzed. The beta-Nb precipitate was found in Zr-1Nb alloy, both Zr(Nb,Fe)(2) precipitate and beta-Nb precipitate were formed in Zr-1Nb-0.2Fe alloy, while only Zr(Nb,Fe)(2) precipitate was observed in Zr-1Nb-0.4Fe alloy. It has been found that the size of precipitates increased with the increasing of Fe content. This work indicated that the Fe content dominates the crystal structure, volume fraction and the element contents of the precipitate, which affect the corrosion resistance of Zr alloy.
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页码：1 / 7
页数：7
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