李涛,仇伟健,金自立,任慧平

• 1:内蒙古科技大学内蒙古自治区白云鄂博矿多金属资源综合利用重点实验室
• 2:内蒙古科技大学材料与冶金学院

摘要(Abstract)：

利用周期浸泡加速腐蚀实验的方法模拟钢铁材料在海洋大气环境中的腐蚀行为,研究了CSP工艺下稀土和非稀土SPCC钢在NaCl溶液中的腐蚀行为。采用SEM、XRD和极化曲线测量技术分别研究了SPCC钢的断面腐蚀形貌、腐蚀产物组成和电流密度。结果表明:SPCC稀土钢的锈层更致密、更薄,在锈层中,具有保护作用的α-FeOOH更多,活性的γ-FeOOH和β-FeOOH含量相对较少。随着稀土的添加,SPCC钢的电流密度降低,这使得钢基体表面的电化学反应减缓,腐蚀倾向降低。α-FeOOH的增多,能够阻碍腐蚀性氯离子向钢基体的运动,从而稀土能提高SPCC钢的耐蚀性。

关键词(KeyWords)： 稀土;海洋大气腐蚀;SPCC;CSP

Abstract:

Keywords:

基金项目(Foundation): 内蒙古自然科学基金(2010 MS0802);; 内蒙古科技大学创新基金(2009NC013)

作者(Author): 李涛,仇伟健,金自立,任慧平

DOI: 10.13289/j.issn.1009-6264.2013.12.016

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