冯淼,彭靖博,张钰柱,余翠兰,寇晓培,田于财

• 1:重庆移通学院智能工程学院
• 2:重庆市地理信息和遥感应用中心

摘要(Abstract)：

通过开路电位、动电位极化曲线、恒电位极化曲线、Mott-Schottky曲线和腐蚀形貌观察等研究了2507双相不锈钢在电解海水防污环境中的腐蚀行为和钝化行为。结果表明：2507双相不锈钢在电解海水防污环境中的腐蚀形式是点蚀；随着NaClO质量浓度的增大，NaClO水解导致溶液pH值升高，阻碍溶解氧的阴极去极化过程，减缓阳极氧化溶解速率，开路电位和自腐蚀电位增加，腐蚀倾向性降低；而NaClO阻碍钝化膜生成过程，钝化区间减小，载流子密度增大，钝化膜屏蔽性能下降，阻抗半径减小，腐蚀电流密度增大，点蚀孔数量增多，孔径深度增大，耐腐蚀性能下降。

关键词(KeyWords)： 2507双相不锈钢;NaClO;腐蚀行为;钝化行为;钝化膜

Abstract:

Keywords:

基金项目(Foundation): 重庆市教委科学技术研究项目青年项目(KJQN202002402)

作者(Author): 冯淼,彭靖博,张钰柱,余翠兰,寇晓培,田于财

DOI: 10.13289/j.issn.1009-6264.2022-0496

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