北京科技大学学报2013，Vol.35Issue(3)：332-338,7.
304不锈钢在西沙海洋大气环境中的腐蚀行为
Corrosion behavior of 304 stainless steel in the marine atmospheric environment of Xisha islands
摘要
Abstract
The corrosion behavior and mechanism of 304 stainless steel exposed for different time periods in the marine atmosphere of Xisha islands were studied by scanning electron microscopy, energy dispersive spectra, electrochemical impedance spectroscopy, and Raman spectroscopy. Pitting corrosion is the main corrosion type of the steel in the atmospheric environment. The main compositions of the corrosion products are β-FeOOH, γ-Fe2O3, and Fe3O4. With the exposure time prolonging, the stability of the passive film deteriorates, the pitting number and depth increase, and the coverage of the surface corrosion products also enlarges. The pitting initiates more easily at scratches on the surface. The increase in machining precision of the surface will improve the pitting corrosion resistance.关键词
不锈钢/大气腐蚀/西沙群岛/点蚀Key words
stainless steel/ atmospheric corrosion/ Xisha islands/ pitting分类
矿业与冶金引用本文复制引用
骆鸿,李晓刚,肖葵,董超芳..304不锈钢在西沙海洋大气环境中的腐蚀行为[J].北京科技大学学报,2013,35(3):332-338,7.基金项目
国家自然科学基金资助项目(51171023 （）
51131001) （）
