2結(jié)構(gòu)的第二相粒子明顯增加，同時(shí)還促進(jìn)了硅在第二相粒子周圍的偏聚，這可以阻止或延緩細(xì)小第二相粒子被氧化的進(jìn)程。進(jìn)一步采用相同合金成分制備的鋯管（Φ63.5 mm×10.92 mm），也呈現(xiàn)出了優(yōu)異的耐癤狀腐蝕和耐均勻腐蝕性能。"/>

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微量鎳元素添加對(duì)Zr-4合金微觀結(jié)構(gòu)、耐腐蝕性能及吸氫行為的影響
作者:
作者單位:

1.東莞材料基因高等理工研究院，廣東 東莞 523808;2.國核寶鈦鋯業(yè)股份公司，陜西 寶雞 721013

作者簡介:

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中圖分類號(hào):

基金項(xiàng)目:

廣東省引進(jìn)創(chuàng)新創(chuàng)業(yè)團(tuán)隊(duì)項(xiàng)目（編號(hào)：2016ZT06G025）


Effect of Trace Nickel Addition on Microstructure, Corrosion Resistance and Hydrogen Absorption of Zr-4 Alloy
Author:
Affiliation:

1.Centre of Excellence for Advanced Materials, Dongguan 523808, China;2.State Nuclear BaoTi Zirconium Industry Company, Baoji 721013, China

Fund Project:

Guangdong Innovative and Entrepreneurial Research Team Program (2016ZT06G025)

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    摘要:

    將微量鎳元素合金化添加到Zr-4合金中，制備了合金板材試樣。利用板材試樣研究了微量鎳元素的添加對(duì)Zr-4合金微觀結(jié)構(gòu)、耐腐蝕及吸氫性能的影響。結(jié)果表明，將鎳元素含量由海綿鋯原料中的0.001%（質(zhì)量分?jǐn)?shù)）以下添加至0.005%，可大幅提升其400 ℃蒸汽下耐腐蝕性能，同時(shí)對(duì)吸氫性能沒有明顯影響。微量鎳元素的添加，不僅使Zr(Fe, Ni)2結(jié)構(gòu)的第二相粒子明顯增加，同時(shí)還促進(jìn)了硅在第二相粒子周圍的偏聚，這可以阻止或延緩細(xì)小第二相粒子被氧化的進(jìn)程。進(jìn)一步采用相同合金成分制備的鋯管（Φ63.5 mm×10.92 mm），也呈現(xiàn)出了優(yōu)異的耐癤狀腐蝕和耐均勻腐蝕性能。

    Abstract:

    Nickel as a trace element was added into zirconium alloy (Zr-4) and then alloy sheet samples were prepared. The microstructure, corrosion property, and hydrogen content of the Zr-4 alloy were studied. Results show that the steam corrosion resistance at 400 °C can be greatly improved by adding nickel from 0.001wt% (the content in the sponge zirconium) to 0.005wt%, and there is no obvious effect on hydrogen absorption property. Trace nickel addition increases the content of the second phase particles in the form of Zr(Fe, Ni)2 obviously, and promotes the aggregation of silicon around second phase particles, which can prevent or delay the oxidation of fine particles. In addition, zirconium tubes (Φ63.5 mm×10.92 mm) with the same alloy component also exhibit excellent nodular corrosion resistance and uniform corrosion resistance.

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儲(chǔ)林華,張書彥,袁改煥,吳桂毅.微量鎳元素添加對(duì)Zr-4合金微觀結(jié)構(gòu)、耐腐蝕性能及吸氫行為的影響[J].稀有金屬材料與工程,2022,51(12):4488~4495.[Chu Linhua, Zhang Shuyan, Yuan Gaihuan, Wu Guiyi. Effect of Trace Nickel Addition on Microstructure, Corrosion Resistance and Hydrogen Absorption of Zr-4 Alloy[J]. Rare Metal Materials and Engineering,2022,51(12):4488~4495.]
DOI：10.12442/j. issn.1002-185X.20220144

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  • 收稿日期:2022-02-26
  • 最后修改日期:2022-12-02
  • 錄用日期:2022-03-18
  • 在線發(fā)布日期: 2023-01-11
  • 出版日期: 2022-12-30