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超级奥氏体不锈钢AL-6XN在超临界水中的腐蚀行为

CORROSION BEHAVIOR OF SUPER-AUSTENITIC STAINLESS STEEL AL-6XN IN SUPERCRITICAL WATER
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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Fe_3O_4,Cr_2O_3,Fe_2O_3和FeCr_2O_4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。 The corrosion behavior of super-austenitic stainless steel AL-6XN exposed to supercritical wa- ter （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.
作者 尹开锯 邱绍宇 唐睿 洪晓峰 张乐福 张强
机构地区 中国核动力研究设计院反应堆燃料及材料重点实验室 上海交通大学核科学与工程学院
出处 《中国腐蚀与防护学报》 CAS CSCD 北大核心 2012年第5期375-380,共6页 Journal of Chinese Society For Corrosion and Protection
基金 核能开发项目国家重点基础研究发展规划项目(2007CB209800)资助
关键词 超级奥氏体不锈钢AL-6XN 超临界水 氧化 氧化膜脱落 super-austenitic stainless steel AL-6XN, supercritical water, oxidation, oxide scale spalling
分类号 TG171 [金属学及工艺—金属表面处理]
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参考文献9

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二级参考文献16

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共引文献15

中国腐蚀与防护学报
2012年 第5期

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