超级奥氏体不锈钢AL-6XN在超临界水中的腐蚀行为

中国腐蚀与防护学报

2012, Vol. 32

Issue (5): 375-380

研究报告

本期目录 | 过刊浏览

超级奥氏体不锈钢AL-6XN在超临界水中的腐蚀行为

尹开锯¹，邱绍宇¹，唐睿¹，洪晓峰¹，张乐福²，张强¹

1. 中国核动力研究设计院反应堆燃料及材料重点实验室成都 610041
2. 上海交通大学核科学与工程学院上海 200240

CORROSION BEHAVIOR OF SUPER-AUSTENITIC STAINLESS STEEL AL-6XN IN SUPERCRITICAL WATER

YIN Kaiju¹, QIU Shaoyu¹, TANG Rui¹, HONG Xiaofeng¹, ZHANG Lefu², ZHANG Qiang¹

1. Reactor Fuel and Materials Key Laboratory, Nuclear Power Institute of China, Chengdu 610041
2. School of Nuclear Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240

全文: PDF(1413 KB)

摘要:

研究了超级奥氏体不锈钢AL-6XN在500℃，550℃和600℃/25 MPa超临界水中的腐蚀行为，通过扫描电镜-电子能谱(SEM-EDX)、X射线衍射(XRD)和X射线光电子能谱(XPS)分析了氧化膜的显微形貌、组织结构与成分分布。结果表明，氧化膜为双层结构，氧化膜中含Fe₃O₄， Cr₂O₃，Fe₂O₃和FeCr₂O₄相。AL-6XN在超临界水中氧化膜存在脱落现象，脱落程度随温度升高而加剧。

关键词 ：超级奥氏体不锈钢AL-6XN, 超临界水, 氧化, 氧化膜脱落

Abstract：

The corrosion behavior of super-austenitic stainless steel AL-6XN exposed to supercritical water (SCW) at 500℃, 550℃, 600℃/25 MPa respectively was investigated by means of mass loss method, scanning electron microscope/energy dispersive X-ray spectroscopy, X-ray diffraction and X-ray photoelectron spectroscopy. A dual-layered oxide scale formed on AL-6XN, which was mainly composed of Fe₃O₄, Cr₂O₃, Fe₂O₃ and FeCr₂O₄. The oxide scale had a tendency to spall, which increased with the increase of exposure temperature.

Key words： super-austenitic stainless steel AL-6XN supercritical water oxidation oxide scale spalling

收稿日期: 2011-09-06

ZTFLH:

TG171

基金资助:

核能开发项目和国家重点基础研究发展规划项目(2007CB209800)资助

通讯作者: 尹开锯 E-mail: yinkj1975@163.com

Corresponding author: YIN Kaiju E-mail: yinkj1975@163.com

作者简介: 男，1972生，副研究员，博士，研究方向为核燃料与材料

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引用本文:

尹开锯，邱绍宇，唐睿，洪晓峰，张乐福，张强. 超级奥氏体不锈钢AL-6XN在超临界水中的腐蚀行为[J]. 中国腐蚀与防护学报, 2012, 32(5): 375-380.
YIN Kaiju, QIU Shaoyu, TANG Rui, HONG Xiaofeng, ZHANG Lefu, ZHANG Qiang. CORROSION BEHAVIOR OF SUPER-AUSTENITIC STAINLESS STEEL AL-6XN IN SUPERCRITICAL WATER. Journal of Chinese Society for Corrosion and protection, 2012, 32(5): 375-380.

链接本文:

https://www.jcscp.org/CN/ 或 https://www.jcscp.org/CN/Y2012/V32/I5/375

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