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中国腐蚀与防护学报  2006, Vol. 26 Issue (5): 303-307     
  研究报告 本期目录 | 过刊浏览 |
含La医用316L不锈钢在生理盐水中的腐蚀行为
杨化娟
中国科学院金属研所
CORROSION OF THE La ADDED MEDICAL 316L STAINLESS STEEL IN PHYSIOLOGICAL SALINE
中国科学院金属研所
全文: PDF(342 KB)  
摘要: 利用阳极极化曲线研究了含La医用316L不锈钢在37℃生理盐 水中的腐蚀行为.结果表明:La含量对316L不锈钢的耐蚀性具有重要影响,随La含量降低, 极化曲线的钝化区变宽,钝化电流密度则基本维持在同一水平.当含La医用316L不锈钢中La 含量为004mass%时,其耐蚀性与医用316L相当,La含量为001mass%时,其耐腐蚀性最好 ,而La含量为008mass%时,其耐蚀性最差.含La医用316L不锈钢在生理盐水中的腐蚀行为 主要源于La元素影响其钝化膜的形成.
关键词 医用316L不锈钢La点蚀    
Abstract:The corrosion of the La added medical 316L stainles s steel in physiological saline at 37℃ was studied by measurement of anodic pol arization curves.The results showed that the La content in 316L stainless steel greatly affects the corrosion behavior.The passive current densities were almost the same while the passive regions became wider with decrease of La content in the steel.The corrosion resistance of the 316L stainless steel with 0.04 mass% L a was equivalent to the 316L steel,with 0.01% La better,and 0.08% La worse.The s tudy shows that the corrosion behavior of the La added 316L stainless steel is m ainly due to the effect of La on the formation of passive film.
Key wordsmedical 316L stainless steel    La    pitting
收稿日期: 2005-12-20     
ZTFLH:  TG174.2+1  
通讯作者: 杨化娟     E-mail: hjyang@imr.ac.cn

引用本文:

杨化娟 . 含La医用316L不锈钢在生理盐水中的腐蚀行为[J]. 中国腐蚀与防护学报, 2006, 26(5): 303-307 .

链接本文:

https://www.jcscp.org/CN/Y2006/V26/I5/303

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