吴恒,侯晓薇,李超,张波.316L不锈钢在淡化海水中的耐腐蚀性能研究[J].装备环境工程,2013,10(6):14-18. WU Heng,HOU Xiao-wei,LI Chao,ZHANG Bo.Corrosion Behavior of316Stainless Steel in Desalinate Seawater[J].Equipment Environmental Engineering,2013,10(6):14-18.
316L不锈钢在淡化海水中的耐腐蚀性能研究
Corrosion Behavior of316Stainless Steel in Desalinate Seawater
投稿时间:2013-09-12  修订日期:2013-10-25
DOI:10.7643/issn.1672-9242.2013.06.004
中文关键词:  不锈钢  淡化海水  点蚀击破电位  慢应变速率拉伸
英文关键词:stainless steel  desalinate seawater  pitting potential  slow strain rate test
基金项目:
作者单位
吴恒 青岛钢研纳克检测防护技术有限公司,山东青岛266071 
侯晓薇 国家海洋局北海预报中心,山东青岛266071 
李超 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 
AuthorInstitution
WU Heng Qingdao NCS Testing&Corrosion Protection Technology Co.,Ltd,Qingdao266071,China 
HOU Xiao-wei North China Sea Marine Forecasting Center of State Oceanic Administration,Qingdao266071,China 
LI Chao Qingdao NCS Testing&Corrosion Protection Technology Co.,Ltd,Qingdao266071,China 
ZHANG Bo Qingdao NCS Testing&Corrosion Protection Technology Co.,Ltd,Qingdao266071,China 
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中文摘要:
      目的 评价316L不锈钢在淡化海水中的耐蚀性能。方法 利用电化学和慢应变速率拉伸(SSRT),并结合扫描电镜(SEM)的方法 。结果电化学阻抗测试结果表明,随着温度的升高,材料的耐蚀性能下降;循环伏安实验结果表明,随着温度的升高,点蚀击破电位负移;SSRT实验结果表明,316L不锈钢在淡化海水中具有一定的应力腐蚀敏感性(SCC),随着温度升高,敏感性增大,在35℃和50℃,316L不锈钢在淡化海水中的断裂为韧性断裂,在70℃时,断口微观形貌呈现韧窝+少量准解理形貌。结论 在淡化海水中,随着温度的升高,不锈钢的耐点蚀性能下降,SCC敏感性增强。
英文摘要:
      Objective To study the corrosion behavior of316L stainless steel in desalinate seawater.Methods Electrochemical technique, SEM observation and slow strain rate test were used.ResultsThe result of impedance indicated that the corrosion resistance decreased with the increasing temperature; The result of cyclic voltammetry indicated that the pitting potential decreased with the increasing temperature, resulting in the decreased pitting corrosion resistance; SSRT results showed that 316L stainless steel was relatively sensitive in desalinate seawater; At35℃and 50℃, the fracture of 316stainless steel was ductile fracture, and the fracture surfaces exhibited ductile fracture and quasi-cleavage at70℃, and the sensitivity of SCC was strengthened. Conclusion 316L stainless steel was relatively more sensitive in desalinate seawater with the increasing temperature.
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