| Cl离子对 304、316不锈钢临界点蚀温度的影响 |
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| 引用本文： | 吴玮巍,蒋益明,廖家兴,钟澄,李劲. Cl离子对 304、316不锈钢临界点蚀温度的影响[J]. 腐蚀科学与防护技术, 2007, 19(1): 16-19 |
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| 作者姓名： | 吴玮巍 蒋益明 廖家兴 钟澄 李劲 |
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| 作者单位： | 复旦大学,材料科学系,上海,200433;复旦大学,材料科学系,上海,200433;复旦大学,材料科学系,上海,200433;复旦大学,材料科学系,上海,200433;复旦大学,材料科学系,上海,200433 |
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| 基金项目： | 国家自然科学基金 , 国家重点基础研究发展计划(973计划) , 上海市纳米科技专项基金 |
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| 摘 要： | 采用外加恒定电位下腐蚀电流-温度扫描的方法分别研究了304、316不锈钢在不同浓度NaCl水溶液中的临界点蚀温度.得到了材料临界点蚀温度随Cl-浓度变化的关系曲线.在分析温度与Cl-浓度分别对钝化膜影响的基础上阐述了二者对不锈钢点蚀的综合作用机理.
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| 关 键 词： | 不锈钢 点蚀 临界点蚀温度 |
| 文章编号： | 1002-6495（2007）01-0016-04 |
| 收稿时间： | 2005-07-29 |
| 修稿时间： | 2005-11-23 |
INFLUENCE OF Cl- ON CRITICAL PITTING TEMPERATURE FOR 304 AND 316 STAINLESS STEELS |
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| WU Wei-wei,JIANG Yi-ming,LIAO Jia-xing,ZHONG Cheng,LI Jin. INFLUENCE OF Cl- ON CRITICAL PITTING TEMPERATURE FOR 304 AND 316 STAINLESS STEELS[J]. Corrosion Science and Protection Technology, 2007, 19(1): 16-19 |
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| Authors: | WU Wei-wei JIANG Yi-ming LIAO Jia-xing ZHONG Cheng LI Jin |
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| Affiliation: | Demartment of Materials Science ,Fudan University,Shanghai 200433 |
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| Abstract: | The pitting corrosion of 304 and 316 stainless steels has been studied by monitoring the evolution process of corrosion current with temperature in NaCl solutions with different concentration under constant applied potentials.And the critical pitting temperature(CPT) was measured.The evolution of CPT versus NaCl concentration for 304 and 316 stainless steels was obtained.The influence of Cl~-concentration on critical pitting temperature of 304 and 316 stainless steels has been discussed in terms of the interaction between passive film and Cl ions. |
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| Keywords: | stainless steels pitting corrosion critical pitting temperature |
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