溶解氢对316L不锈钢在模拟压水堆一回路水中氧化行为的影响

中国腐蚀与防护学报

2012, Vol. 32

Issue (3): 217-222

研究报告

本期目录 | 过刊浏览

溶解氢对316L不锈钢在模拟压水堆一回路水中氧化行为的影响

彭青姣,张志明,王俭秋,韩恩厚,柯伟

中国科学院金属研究所金属腐蚀与防护国家重点实验室辽宁省核材料安全与评价技术重点实验室沈阳 110016

INFLUENCE OF DISSOLVED HYDROGEN ON OXIDATION OF STAINLESS STEEL 316L IN SIMULATED PWR PRIMARY WATER

PENG Qingjiao, ZHANG Zhiming,WANG Jianqiu, HAN En-Hou, KE Wei

Liaoning Key Laboratory for Safety and Assessment Technique of Nuclear Materials, State Key Laboratory for Corrosion and Protection, Institute of Metal Research , Chinese Academy of Sciences, Shenyang 110016

全文: PDF(1279 KB)

摘要: 采用扫描电镜(SEM)、X射线衍射(XRD)、X射线光电子能谱(XPS)和透射电镜(TEM)分析了不同溶解氢含量下， 316L不锈钢在325℃的模拟压水堆一回路水中形成的氧化膜的形貌、结构和成份。实验结果表明， 316L不锈钢在溶解氢含量为零的高温高压水中形成外层富铁，内层富铬的双层氧化膜。随着水中溶解氢含量的升高，氧化膜外层的大颗粒氧化物尺寸减小，排列更加致密。而氧化膜的物相组成变化不明显，均主要是由尖晶石结构氧化物构成。XPS分析表明，随着水中溶解氢含量的升高，氧化膜厚度逐渐增加，且氧化膜中Ni含量升高，Cr含量降低。

关键词 ： 316L不锈钢, 高温高压水, 氧化膜, 溶解氢

Abstract：Scanning electron microscope（SEM），X-ray diffraction（XRD），X-ray photoelectron spectroscopy(XPS) and transmission electron microscopy(TEM) were used to analyze the morphology, structure and chemical composition of the oxide films formed on stainless steel(SS) 316L in the simulated pressurized water reactor (PWR) primary water at 325℃. The results showed that the oxide film formed on 316L SS in high-temperature and high-pressure solution without dissolved hydrogen had a double layer structure composed of iron-rich outer layer and chromium-rich inner layer. With increasing dissolved hydrogen, the outer big oxide particles became small and more compact, but all the oxide films were consisted of spinel oxide. XPS results indicated that, with increasing dissolved hydrogen, the thickness of the oxide film increased. In addition, the nickel content in the oxide film increased, whereas the chromium content decreased.

Key words： 316L stainless steel high-temperature and high-pressure water oxide film dissolved hydrogen

收稿日期: 2011-04-28

ZTFLH:

TG172

基金资助:

国家重点基础研究发展计划项目(G2011CB610502)和国家自然科学基金项目(51025104)资助

通讯作者: 王俭秋 E-mail: wangjianqiu@imr.ac.cn

Corresponding author: WANG Jianqiu E-mail: wangjianqiu@imr.ac.cn

作者简介: 彭青姣，女，1986年生，硕士生，研究方向为核电主管道材料的腐蚀

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引用本文:

彭青姣,张志明,王俭秋,韩恩厚,柯伟. 溶解氢对316L不锈钢在模拟压水堆一回路水中氧化行为的影响[J]. 中国腐蚀与防护学报, 2012, 32(3): 217-222.
PENG Jing-Jiao, YU Jian-Qiu. INFLUENCE OF DISSOLVED HYDROGEN ON OXIDATION OF STAINLESS STEEL 316L IN SIMULATED PWR PRIMARY WATER. J Chin Soc Corr Pro, 2012, 32(3): 217-222.

链接本文:

https://www.jcscp.org/CN/ 或 https://www.jcscp.org/CN/Y2012/V32/I3/217

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