铅铋合金环境中高强AlCrFeNi多主元合金的腐蚀行为

黄赟浩; 王健斌; 王志军; 赵可

doi:10.13832/j.jnpe.2023.S1.0137

铅铋合金环境中高强AlCrFeNi多主元合金的腐蚀行为

doi: 10.13832/j.jnpe.2023.S1.0137

1.
中国核动力研究设计院核反应堆系统设计技术重点实验室，成都，610213
2.
西北工业大学凝固技术国家重点实验室，西安，710072

详细信息

作者简介:
黄赟浩（1994—），男，副研究员，现从事反应堆燃料与材料研究工作，Email：huangyunhao@mail.nwpu.edu.cn

中图分类号: TL334
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出版历程
- 收稿日期: 2023-02-21
- 修回日期: 2023-04-30
- 刊出日期: 2023-06-15

Corrosion Behavior of High Strength AlCrFeNi Multi-principal- component Alloy in Lead-bismuth Alloy

1.
Science and Technology on Reactor Fuel and Materials Laboratory, Nuclear Power Institute of China, Chengdu, 610213, China
2.
State Key Laboratory of Solidification Processing, Northwestern Polytechnical University, Xi’an, 710072, China

摘要

摘要: 传统结构材料限制了铅铋核能系统性能的进一步提高，为给铅铋反应堆提供高性能结构材料，针对高强Al₁₇Cr₁₀Fe₃₇Ni₃₆多主元合金开展了高温静态铅铋合金环境相容性研究。研究表明，在500~600℃的铅铋饱和氧环境下，合金形成致密的Fe-Cr-Al-O氧化膜与疏松的氧化铁双层氧化膜结构，双层氧化膜厚度仅有1.5 μm，氧化膜生长速率极低；Fe-Cr-Al-O氧化膜在高温铅铋环境具有极佳的致密性、结构与组织稳定性，显著保护了液态铅铋向基体溶解。相比于传统的铁素体/马氏体钢（F/M钢）、奥氏体不锈钢，Al₁₇Cr₁₀Fe₃₇Ni₃₆多主元合金在高温铅铋环境中应用具有明显的优势。
- 铅铋合金 /
- Al₁₇Cr₁₀Fe₃₇Ni₃₆多主元合金 /
- 腐蚀
Abstract: Traditional structure materials limit the higher performance of lead-bismuth nuclear system. In order to provide high-performance structural materials for lead-bismuth reactors, a study on static lead-bismuth eutectic compatability at high temperature for the high strength Al₁₇Cr₁₀Fe₃₇Ni₃₆ multi-principal-component alloy was carried out. The results showed that the alloy formed a dense Fe-Cr-Al-O oxide film and a loose iron oxide double-layer oxide film structure in the lead-bismuth saturated oxygen environment at 500~600℃. The double oxidation film is only 1.5μm, which shows that the growth velocity of double oxidation film is slowly. The study show the Fe–Cr–Al oxide film own excellent compactness and structure stability, which prevent the lead-bismuth corrode the matrix. This study shows that the advance of AlCrFeNi multi-principal-component alloys in the lead-bismuth system, compared with the traditional ferrite/martensite stainless steel and austenite stainless steel.
- PbBi alloy /
- AlCrFeNi multi-principal-component alloy /
- Corrosion

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图 1 Al₁₇Cr₁₀Fe₃₇Ni₃₆合金在500℃经不同腐蚀时间后试样腐蚀截面的微观形貌

Figure 1. Microstructure of Corrosion Interface of Al₁₇Cr₁₀Fe₃₇Ni₃₆ Multi-Principal-Component Alloy after Different Corrosion Times at 500℃

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图 2 500℃不同腐蚀时间后清洗铅铋后试样的表面形貌

Figure 2. Surface Topography of Rinsed LBE after Different Corrosion Times at 500℃

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图 3 500℃、1000 h腐蚀后试样与铅铋界面处扫描电子显微镜条件下的EDS线扫结果

元素/at%—原子百分比，下同

Figure 3. EDS Line Scanning Results by SEM of Interface between Corrosion Sample and LBE at 500℃ for 1000 h

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图 4 Al₁₇Cr₁₀Fe₃₇Ni₃₆合金经过500℃、1500 h腐蚀后界面处的TEM表征结果

Figure 4. TEM Characterization Results of Al₁₇Cr₁₀Fe₃₇Ni₃₆ Multi-Principal-Component Alloy Corrosion Interface after 1500 h at 500℃

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图 5 600℃、1000 h腐蚀后试样与铅铋界面处SEM下的EDS线扫结果

Figure 5. EDS Line Scanning Results by SEM of Interface between Corrosion Sample and LBE at 600℃ for 1000 h

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表 1 Al₁₇Cr₁₀Fe₃₇Ni₃₆合金设计成分

Table 1. Designed Composition of Al₁₇Cr₁₀Fe₃₇Ni₃₆

元素 Al Cr Fe Ni Mo

原子百分数/% 17 10 37 36 2

下载: 导出CSV

参考文献(14)

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