运用循环阳极极化曲线研究了不同温度和浓缩度的海水介质中316L不锈钢的点蚀行为.结果表明,在1～3倍浓缩度范围内,316L不锈钢的点蚀电位和再钝化电位均随着温度的升高而线性降低,但当浓缩度高于2倍、温度大于85℃时,点蚀电位变化较小;在25～95℃温度范围内,点蚀电位和再钝化电位与海水浓缩度的对数呈线性关系.浓缩度对316L不锈钢点蚀性能的影响比温度更小,并根据点缺陷理论分析了二者对点蚀的作用机制.
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