丁国清,杨海洋,杨万国,张波,曲政.两种不锈钢在冷却塔冷凝酸液中的耐蚀性能[J].装备环境工程,2014,11(1):13-17,38. DING Guo-qing,YANG Hai-yang,YANG Wan-guo,ZHANG Bo,QU Zheng.Corrosion Resistance Analysis of Two Stainless Steels Exposed in Cooling Tower Condensed Acid[J].Equipment Environmental Engineering,2014,11(1):13-17,38.
两种不锈钢在冷却塔冷凝酸液中的耐蚀性能
Corrosion Resistance Analysis of Two Stainless Steels Exposed in Cooling Tower Condensed Acid
投稿时间：2013-09-05  修订日期：2013-10-09
DOI：10.7643/issn.1672-9242.2014.01.003
中文关键词:  不锈钢  冷却塔  冷凝酸液  耐蚀性能
英文关键词:stainless steel  cooling tower  condensed acid  corrosion resistance
基金项目:
作者单位
丁国清 青岛钢研纳克检测防护技术有限公司，山东青岛266071 
杨海洋 青岛钢研纳克检测防护技术有限公司，山东青岛266071 
杨万国 青岛钢研纳克检测防护技术有限公司，山东青岛266071 
张波 青岛钢研纳克检测防护技术有限公司，山东青岛266071 
曲政 青岛钢研纳克检测防护技术有限公司，山东青岛266071 
AuthorInstitution
DING Guo-qing Qingdao NCS Testing & Corrosion Protection Technology Co.，Ltd，Qingdao266071，China 
YANG Hai-yang Qingdao NCS Testing & Corrosion Protection Technology Co.，Ltd，Qingdao266071，China 
YANG Wan-guo Qingdao NCS Testing & Corrosion Protection Technology Co.，Ltd，Qingdao266071，China 
ZHANG Bo Qingdao NCS Testing & Corrosion Protection Technology Co.，Ltd，Qingdao266071，China 
QU Zheng Qingdao NCS Testing & Corrosion Protection Technology Co.，Ltd，Qingdao266071，China 
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中文摘要:
      目的分析304不锈钢和316L不锈钢在电厂冷却塔内海水及烟气形成的模拟冷凝酸液环境中的耐蚀性能。方法利用浸泡试验和电化学试验方法测试两种不锈钢在模拟冷凝酸液中的腐蚀形貌、腐蚀率和极化曲线。结果304不锈钢在模拟冷凝酸液中的耐蚀性能较差，其腐蚀率及钝态稳定性受冷凝酸液pH值的影响较大；316L不锈钢在模拟冷凝酸液中的耐蚀性能较好，其腐蚀率及钝态稳定性受冷凝酸液pH值的影响较小。结论316L不锈钢在冷却塔冷凝酸液中的耐蚀性能明显优于304不锈钢。
英文摘要:
      ObjectiveTo analyze the corrosion resistance of304and316L stainless steel which were exposed in cooling tower condensed acid produced in electric power plant.MethodsThe corrosion rate and polarization curves of 304and316L stainless exposed in cooling tower condensed acid were measured.ResultsTotally304stainless steel exhibited poor corrosion resistance. The pH of condensed acid had a great influence on the corrosion rate and passive performance of304stainless steel.316L stainless steel exhibited good corrosion resistance. The pH of condensed acid had less influence on the corrosion rate and passive performance of316L stainless steel.ConclusionThe corrosion resistance of 316L stainless steel exposed in cooling tower condensed acid was much better than that of304stainless steel under the same conditions.
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