Corrosion Resistant Behavior of Zr-1Nb-0.1Fe-xCu Zirconium in 400℃ Steam

Shi Minghua; Tian Feng; Zhou Jun; Qu Jingwen; Fan Qingsong; Xu You

doi:10.15980/j.tzzz.2019.07.005

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Corrosion Resistant Behavior of Zr-1Nb-0.1Fe-xCu Zirconium in 400℃ Steam
Vol. 39, Issue 7, Pages: 715-718(2019)
Published： 2019 ，
DOI： 10.15980/j.tzzz.2019.07.005

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[1]石明华,田锋,周军,渠静雯,范清松,徐悠.Zr-1Nb-0.1Fe-xCu合金在400℃水蒸气中的耐腐蚀性能[J].特种铸造及有色合金,2019,39(07):715-718.

Shi Minghua, Tian Feng, Zhou Jun, et al. Corrosion Resistant Behavior of Zr-1Nb-0.1Fe-xCu Zirconium in 400℃ Steam. [J]. Special Casting & Nonferrous Alloys 39(7):715-718(2019)
[1]石明华,田锋,周军,渠静雯,范清松,徐悠.Zr-1Nb-0.1Fe-xCu合金在400℃水蒸气中的耐腐蚀性能[J].特种铸造及有色合金,2019,39(07):715-718. DOI： 10.15980/j.tzzz.2019.07.005.

Shi Minghua, Tian Feng, Zhou Jun, et al. Corrosion Resistant Behavior of Zr-1Nb-0.1Fe-xCu Zirconium in 400℃ Steam. [J]. Special Casting & Nonferrous Alloys 39(7):715-718(2019) DOI： 10.15980/j.tzzz.2019.07.005.

摘要

制备了厚1.4mm的Zr-1Nb-0.1Fe-xCu（0、0.05、0.1、0.2）合金板材试样

进行了400℃、10.3 MPa下的过热蒸气腐蚀试验。通过金相及扫描电镜观察合金的微观组织及第二相的分布、大小

并运用Image-Pro软件统计了第二相的大小及比例。初步探讨了Zr-1Nb-0.1Fe-xCu合金在400℃、10.3MPa下过热蒸气中的腐蚀规律及机理。结果表明

在Zr-1Nb-0.1Fe合金中加入一定量的Cu可以得到均匀、细小、弥散分布的第二相

Cu不论是以固溶的形式存在或以第二相的形式存在

均提高了锆合金的耐腐蚀性能。

Abstract

The effects of different Cu content（0

0.05

0.2）on the corrosion behavior of Zr-1 Nb-0.1 Fe alloy sheet with thickness of 1.4 mm at 400 ℃for 10.3 MPa super-heated steam were investigated

and the optimum Cu content was determined to design the alloys with excellent performance.The microstructure

distribution and size of the second phase of the samples were observed by OM and SEM

meanwhile

the size and distribution of the second phase were analyzed by Image-Pro software.The role of Cu content in the corrosion mechanism of the samples under 400℃/10.3 MPa was undersatnd.The results reveal that a certain amount of Cu addition can generate homogeneous

fine and dispersive second phase in Zr-1 Nb-0.1 Fe alloy

improving the corrosion resistance of the samples.It is demonstrated that Cu

either in the form of solid solution or in second phase

will enhance the corrosion resistance of zircaloy.