Effect of Fe on the Precipitate Characteristics and Out-of-pile Corrosion Behavior of Zr-1Nb-xFe Alloys
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 β-Nb precipitate was found in Zr-1Nb alloy,both Zr(Nb,Fe)2 precipitate and β-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.
Zr alloy Precipitate characteristics Corrosion behavior
Rongshan Wang Likui Weng Yanwei Zhang Jianqiao Geng Chenxi Du Erwei Liu
Metal Component Life Assessment Dept., Suzhou Nuclear Power Research Institute,Suzhou 215004, China Metal Component Life Assessment Dept., Suzhou Nuclear Power Research Institute,Suzhou 215004, China;
国际会议
the Chinese Materials Congress 2012(2012年中国材料大会(CMC2012))
太原
英文
1-7
2012-07-13（万方平台首次上网日期，不代表论文的发表时间）