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| 耐候钢表面稳定锈层形成机理的研究 | |
| 引用本文： | 张全成,吴建生,郑文龙,王建军,陈家光,杨晓芳,李爱柏.耐候钢表面稳定锈层形成机理的研究[J].腐蚀科学与防护技术,2001,13(3):143-146. |
| 作者姓名： | 张全成 吴建生 郑文龙 王建军 陈家光 杨晓芳 李爱柏 |
| 作者单位： | 1. 上海交通大学材料科学与工程学院 2. 上海材料研究所 3. 宝山钢铁有限公司钢铁研究院 |
| 摘 要： | 研究了耐候钢在青岛近海大气中曝晒3a的腐蚀行为， 观察测定了锈层与基体的界面形貌、相组成及锈层中合金元素的分布.结果表明，腐蚀3a的 耐候钢表面锈层有明显的分层现象；内锈层组织致密，主要有各向同性的α-FeOOH构成，在 偏光下检测消光；外锈层有γ—FeOOH和Fe2O3构成，在偏光下检测炫光；在内锈层中有 合金元素的富集. |
| 关 键 词： | 大气腐蚀 偏光 内锈层 羟基氧化铁 |
| 文章编号： | 1002-6495(2001)03-0143-04 |
| 修稿时间： | 2000年6月6日 |
FORMATION MECHANISM OF PROTECTIVE RUST ON WEATHERING STEEL |
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| ZHANG Quancheng,Wu Jiansheng,ZHENG Wenlong,WANG Jianjun,CHEN Jiaguang,Yang Xiaofang,LI Aibai.FORMATION MECHANISM OF PROTECTIVE RUST ON WEATHERING STEEL[J].Corrosion Science and Protection Technology,2001,13(3):143-146. | |
| Authors: | ZHANG Quancheng Wu Jiansheng ZHENG Wenlong WANG Jianjun CHEN Jiaguang Yang Xiaofang LI Aibai |
| Abstract: | Corrosion rate of carbon steel and the weathering steel in the marine atmosphere by Qingdao for 3 years was compared,and the distribution of the alloy elements in the rust layer was determined.The result shows that the structure of corrosion rust of weathering steel exposed for 3 years consisted of inner layer and outer layer obviously. The former was compacted and composed of αFeOOH mainly,and looked dark by the polarized light. However,the latter is of γ-FeOOH and a little FeO,and appeared bright by the polarized light. |
| Keywords: | atmospheric corrosion polarized light inner rust layer iron hydroxide |
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