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| 常压塔顶316L不锈钢换热器管束的腐蚀失效分析 | |
| 引用本文： | 宋义全,武俊伟,李晓刚,肖佐华.常压塔顶316L不锈钢换热器管束的腐蚀失效分析[J].腐蚀科学与防护技术,2004,16(5):334-336. |
| 作者姓名： | 宋义全 武俊伟 李晓刚 肖佐华 |
| 作者单位： | 1. 北京科技大学腐蚀与防护中心,北京市腐蚀、磨蚀与表面工程重点实验室,北京,100083;包头钢铁学院材料系,包头,014010 2. 北京科技大学腐蚀与防护中心,北京市腐蚀、磨蚀与表面工程重点实验室,北京,100083 3. 中石化洛阳分公司炼油厂设备部,洛阳,471000 |
| 基金项目： | 中国石油化工股份有限公司洛阳分公司技术服务项目( 2 0 0 2 12 10 2 3 12 0 0 ) |
| 摘 要： | 通过宏观、金相观察、X射线衍射及SEM等方法分析了炼油厂常压塔顶316L不锈钢换热器管束的腐蚀形态及原因.结果表明，316L不锈钢组织基本合格；由氯离子产生的孔蚀以及由应力和腐蚀介质的共同作用导致的应力腐蚀是两种主要腐蚀失效形式. |
| 关 键 词： | 不锈钢 换热器 孔蚀 应力腐蚀 |
| 文章编号： | 1002-6495(2004)05-0334-03 |
| 修稿时间： | 2003年3月11日 |
CORROSION OF HEAT EXCHANGER PIPE BUNDLE OF 316L STAINLESS STEEL FOR DISTILLATION TOWER OVERHEAD |
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| SONG Yi quan ,WU Jun wei ,LI Xiao gang ,XIAO Zuo hua Corrosion and Protection Center of University of Science and Technology Beijing,The Key Lab of Corrosion,Erosion and Surface Technology of Beijing,Beijing.CORROSION OF HEAT EXCHANGER PIPE BUNDLE OF 316L STAINLESS STEEL FOR DISTILLATION TOWER OVERHEAD[J].Corrosion Science and Protection Technology,2004,16(5):334-336. | |
| Authors: | SONG Yi quan WU Jun wei LI Xiao gang XIAO Zuo hua Corrosion and Protection Center of University of Science and Technology Beijing The Key Lab of Corrosion Erosion and Surface Technology of Beijing Beijing |
| Affiliation: | SONG Yi quan 1,2,WU Jun wei 1,LI Xiao gang 1,XIAO Zuo hua 3 1 Corrosion and Protection Center of University of Science and Technology Beijing,The Key Lab of Corrosion,Erosion and Surface Technology of Beijing,Beijing 100083, 2 Department of Materials,Baotou Institute of Iron and Steel,Baotou 014010, 3 The Equipment Division of Refinery of LuoYang Petrochemical Complex,Luoyang 471000 |
| Abstract: | By means of macro inspection, X ray diffraction, scanning electron microscope, optical microscopy and EDS, corrosion of heat exchanger pipe bundle of 316L stainless steel for a distillation tower overhead was analyzed. It was shown that microstructure of 316L stainless steel is basically eligible. Almost two forms of invalidated corrosion exist in this kind of corrosion, one is pitting corrosion by chloride ion, and the another is stress corrosion by stress and environmental corrosive medium. |
| Keywords: | L stainless steel heat exchanger of atmospheric distillation tower overhead pitting corrosion stress corrosion cracking |
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