车辆装备发动机冷却系电偶腐蚀行为研究  

Research on Behavior of Galvanic Corrosion in Cooling System of Military Vehicle＇s Engine

作　　者：徐安桃[1] 罗兵[1,2] 张帆[1] 靳福[1] 李强 

机构地区：[1]军事交通学院汽车工程系,天津300161 [2]94277部队,济南250023 [3]96531部队,河南洛阳473061

出　　处：《军事交通学院学报》2012年第8期80-83,共4页Journal of Military Transportation University

摘　　要：铸铁、铸铝和黄铜是车辆装备发动机冷却系常用的3种金属材料，在冷却水中对其进行极化曲线测试。得出各自自腐蚀电位并进行比较可知，铜正于铸铁和铸铝，表明冷却系中电偶腐蚀存在的可能性，再进行电偶电流测试，以研究冷却系电偶金属材料在冷却液中的腐蚀行为。探讨电偶腐蚀的特点与规律，为冷却系的腐蚀防护提供理论依据。The cooling system of the engine of military vehicle is usually made from Fe, A1 and Cu element. Tested in the cooling system, the polarization curves indict that the self - corrosion current of Cu is more positive than that of Fe and A1. It shows that galvanic current probably exists in the cooling system. Then the behavior of galvanic corrosion in it is further studied to discuss the feature and law of the corrosion to provide theory for protecting mental against corrosion in cooling sys- tem in military engine.

关 键 词：车辆装备 极化曲线 发动机冷却系 电偶腐蚀 

分 类 号：TB304[一般工业技术—材料科学与工程]