| 0Cr13Ni5Mo马氏体不锈钢在静置长江水中的腐蚀原因探讨 |
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| 引用本文： | 萧星,萧以德,王树宗,周学杰,郑鹏华.0Cr13Ni5Mo马氏体不锈钢在静置长江水中的腐蚀原因探讨[J].武汉理工大学学报(交通科学与工程版),2008,32(6). |
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| 作者姓名： | 萧星 萧以德 王树宗 周学杰 郑鹏华 |
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| 作者单位： | 1. 海军工程大学兵器新技术应用研究所,武汉,430033
2. 武汉材料保护研究所,武汉,430030 |
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| 基金项目： | 国家自然科学基金重大资助项目资助
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| 摘 要： | 由0Cr13Ni5Mo马氏体不锈钢与Q345碳钢复合的复合钢板焊接制作的某大型水利排砂钢管设施,在静止长江淡水条件下出现严重点蚀.通过距焊缝不同距离的不锈钢表面的腐蚀电位、点蚀击穿电位、重钝电位的电化学研究以及其金相组织和元素(Cr,C)含量变化等分析发现:焊接加工中的热效应导致马氏体不锈钢某些部位的表面Cr含量降低,晶粒与晶界处出现C的聚集,金相组织粗大,从而优先产生点蚀.讨论了不同焊接工艺热影响作用,焊接电流越大,热效应越明显.
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| 关 键 词： | 焊接 马氏体不锈钢 腐蚀 |
Corrosion Reason of 0Cr13Ni5Mo Martensitic Stainless Steel Under Static Fresh Water Condition in Yangtze River |
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| Xiao Yuxing,Xiao Yide,Wang Shuzong,Zhou Xuejie,Zheng Penghua.Corrosion Reason of 0Cr13Ni5Mo Martensitic Stainless Steel Under Static Fresh Water Condition in Yangtze River[J].journal of wuhan university of technology(transportation science&engineering),2008,32(6). |
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| Authors: | Xiao Yuxing Xiao Yide Wang Shuzong Zhou Xuejie Zheng Penghua |
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| Institution: | Institute of New Weaponry Technology & Application;Naval Univ.of Engineering;Wuhan 430033;Wuhan Research Institute of Materials Protection;Wuhan 430030 |
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| Abstract: | The large water conservancy facilities,which have serious point corrosion under static fresh water condition in Yangtze River,is weld by the compound steel plate of the 0Cr13Ni5Mo martensitic stainless steel and the Q235 carbon steel.By the electrochemistry research of corrosion electric potential,point corrosion electric potential and other electric potential of the stainless steel surface with different distance from the welding line,as well as the analysis of content variety of its metallography organiza... |
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| Keywords: | welding martensitic stainless steel corrosion |
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