| 石瑶,黄子琳,袁珂.两种奥氏体不锈钢酸性盐雾腐蚀行为研究[J].装备环境工程,2020,17(6):51-57. SHI Yao,HUANG Zi-lin,YUAN Ke.Corrosion Behavior of Two Kinds of Austenitic Stainless Steel in Acid Salt Spray Test[J].Equipment Environmental Engineering,2020,17(6):51-57. |
| 两种奥氏体不锈钢酸性盐雾腐蚀行为研究 |
| Corrosion Behavior of Two Kinds of Austenitic Stainless Steel in Acid Salt Spray Test |
| 投稿时间：2020-03-11 修订日期：2020-03-31 |
| DOI：10.7643/issn.1672-9242.2020.06.009 |
| 中文关键词: 奥氏体不锈钢 酸性盐雾试验 0Cr18Ni9(钝化) 0Cr18Ni10Ti(钝化) 腐蚀 |
| 英文关键词:austenitic stainless steel acid salt spray test, 0Cr18Ni9 (passivated) 0Cr18Ni10Ti (passivated) corrosion |
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| 中文摘要: |
| 目的 研究0Cr18Ni9(钝化)不锈钢与0Cr18Ni10Ti(钝化)不锈钢在酸性盐雾条件下的腐蚀行为，为发动机零件选材及防护措施的改进提供依据。方法 按GJB 150.11A—2009《军用装备环境试验方法盐雾试验》进行，调节溶液pH到3.5±0.5，以24 h喷雾润湿+24 h干燥为一个循环，分别开展2(96 h)、4(192 h)、5(240 h)个循环的酸性盐雾试验。采用目视、称量、X射线衍射(XRD)、扫描电子显微镜(SEM)及能谱仪(EDS)对盐雾腐蚀后试样进行观察及分析。结果 0Cr18Ni9(钝化)与0Cr18Ni10Ti(钝化)两种奥氏体不锈钢均发生了轻微的腐蚀，主要为局部腐蚀及均匀腐蚀。结论 两种金属在酸性盐雾条件下耐蚀性良好，且可满足目前海军型发动机对材料耐酸性盐雾腐蚀的要求，0Cr18Ni9(钝化)略优于0Cr18Ni10Ti(钝化)。 |
| 英文摘要: |
| The paper aims to study the corrosion behavior of 0Cr18Ni9 (passivated) and 0Cr18Ni10Ti (passivated) stainless steel in acid salt spray test to provide basis for selection and protection of engine parts. Based on GJB150.11A-2009 “Environmental Test Methods for Military Material-Salt Spray Test”, the pH of the solution was adjusted to 3.5±0.5. With 24h mist spray plus 24h drying as a cycle, two cycles (96 h), 4 cycles (192 h) and 5 cycles (240 h) of acid salt spray tests were carried out. The specimens after acid salt spray test was observed and analyzed by visual check, weighing, X-ray diffraction (XRD), scanning electron microscopy (SEM), and energy dispersive spectroscopy (EDS). Both 0Cr18Ni9 (passivated) and 0Cr18Ni10Ti (passivated) had slight corrosion in acid salt spray test. The corrosion is mostly local corrosion and uniform corrosion. Both 0Cr18Ni9 (passivated) and 0Cr18Ni10Ti (passivated) have well corrosion resistance and can meet the requirement of navy engine on acid salt spray corrosion resistance salt spray of materials. But 0Cr18Ni9 (passivated) is a little better than 0Cr18Ni10Ti (passivated). |
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