| 316L不锈钢柠檬酸钝化工艺及其耐点蚀性能研究 |
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| 引用本文： | 马李洋,丁毅,马立群,姚春荣,沈卫东. 316L不锈钢柠檬酸钝化工艺及其耐点蚀性能研究[J]. 表面技术, 2007, 36(2): 39-41 |
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| 作者姓名： | 马李洋 丁毅 马立群 姚春荣 沈卫东 |
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| 作者单位： | 南京工业大学材料科学与工程学院,江苏,南京,210009;南通中集罐式储运设备制造有限公司,江苏,南通,226003 |
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| 摘 要： | 采用正交试验方法研究了316L不锈钢柠檬酸钝化工艺,利用电化学测试方法测量了不锈钢焊接接头各部位在钝化前后点蚀电位的变化,并以此评价钝化工艺对不锈钢耐点蚀性能的影响.研究结果表明,由正交试验优选出的最优配方和工艺为:柠檬酸、双氧水、乙醇的质量分数分别为3%、10%、5%,温度25℃,钝化时间90 min.此工艺配方可大大提高316L不锈钢整体的耐点蚀性能.
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| 关 键 词： | 316L不锈钢 柠檬酸 钝化 耐点蚀性能 正交试验 |
| 文章编号： | 1001-3660（2007）02-0039-03 |
| 收稿时间： | 2006-10-27 |
| 修稿时间： | 2006-10-27 |
Study on the Citric Acid Passivation and the Pitting Corrosion Resistance of 316L Stainless Steel |
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| MA Li-yang,DING Yi,MA Li-qun,YAO Chun-rong and SHEN Wei-dong. Study on the Citric Acid Passivation and the Pitting Corrosion Resistance of 316L Stainless Steel[J]. Surface Technology, 2007, 36(2): 39-41 |
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| Authors: | MA Li-yang DING Yi MA Li-qun YAO Chun-rong SHEN Wei-dong |
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| Affiliation: | 1. College of Materials Science and Engineering, Nanjing University of Technology, Nanjing 210009, China; 2. Nantong CIMC Tank Equipment Co. ,Ltd, Nantong 226003, China |
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| Abstract: | The citric acid passivation process of 316L stainless steel was studied by means of orthogonal test and its influence on pitting corrosion resistance was evaluated by potentiodynamic method. It concluded that the best technique selected from orthogonal test, which was made up by 3 percent citric acid, 10 percent hydrogen peroxide, 5 percent ethanol, 250C and 90 minutes, could improve the pitting corrosion resistance of 316L stainless steel obviously. |
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| Keywords: | 316L stainless steel Citric acid Passivation Pitting corrosion resistance Orthogonal test |
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