| 0Cr25Ni7Mo4、316与304不锈钢临界点蚀温度研究 |
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| 引用本文： | 吴玮巍,蒋益明,廖家兴,钟澄,郭峰,李劲.0Cr25Ni7Mo4、316与304不锈钢临界点蚀温度研究[J].腐蚀科学与防护技术,2006,18(4):285-288. |
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| 作者姓名： | 吴玮巍 蒋益明 廖家兴 钟澄 郭峰 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;复旦大学,材料科学系,上海,200433 |
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| 基金项目： | 国家高技术研究发展计划(863计划);国家研究发展基金;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-温度扫描方法研究了0Cr25Ni7Mo4、304和316不锈钢在1 mol/L NaCl水溶液中的点蚀行为。利用不锈钢临界点蚀温度评价了材料的耐点蚀性能.测得0Cr25Ni7Mo4和316不锈钢的临界点蚀温度分别为79.5 ℃和15 ℃，304不锈钢在0 ℃以下.对0Cr25Ni7Mo4不锈钢材料优良耐点蚀性能的原因进行了分析讨论.
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| 关 键 词： | 不锈钢 临界点蚀温度 点蚀 |
| 文章编号： | 1002-6495（2006）04-0285-04 |
| 收稿时间： | 2005-06-14 |
| 修稿时间： | 2005-07-25 |
ELECTROCHEMCIAL MEASUREMENT OF CRITICAL PITTING TEMPERATURE OF 0Cr25Ni7Mo4,316 AND 304 STAINLESS STEELS IN 3.5%NaCl SOLUTION |
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| WU Wei-wei,JIANG Yi-ming,LIAO Jia-xing,ZHONG Cheng,GUO Feng,LI Jin.ELECTROCHEMCIAL MEASUREMENT OF CRITICAL PITTING TEMPERATURE OF 0Cr25Ni7Mo4,316 AND 304 STAINLESS STEELS IN 3.5%NaCl SOLUTION[J].Corrosion Science and Protection Technology,2006,18(4):285-288. |
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| Authors: | WU Wei-wei JIANG Yi-ming LIAO Jia-xing ZHONG Cheng GUO Feng LI Jin |
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| Affiliation: | Department of Materials Science, Fudan University, Shanghai 200433 |
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| Abstract: | The pitting corrosion of 0Cr25Ni7Mo4, 304 and 316 stainless steels has been studied by measuring evolution of corrosion current with temperature in 1 mol/L NaCl solutions under constant potentials. The pitting corrosion resistance of the stainless steels was ranked by their critical pitting temperatures, which for 0Cr25Ni7Mo4 and 316 stainless steels are 79,5 12 and 15 12 respectively, but for 304 stainless steels are subfreezing. The experimental results were discussed on the basis of the composition of the steels. |
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| Keywords: | stainless steels critical pitting temperature pitting corrosion |
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