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组件式设计常被用于人工髋关节，钴铬钼合金（ＣｏＣｒＭｏ）与钛合金（Ｔｉ６Ａｌ４Ｖ）的压配合最常用．本文应用电化学方法研究了静态条件下两种合金的电偶腐蚀行为．浸泡实验表明，钴络钼合金为阳极，但电偶电流与其维钝电流相近，并无明显加速腐蚀效应；钛合金为阴极，受到保护．失重及金相观察结果显示，在４５天的浸泡实验周期内，未发现腐蚀痕迹．混合电位理论和电位保护理论分析结果显示，这两种合金在静态条件下具有很弱的电偶腐蚀敏感性，其电偶腐蚀电位处于两种合金的钝化电位区，电偶电流为合金的维钝电流．
Component design is often used in artificial hip joint, the most commonly used for the press-fitting of Co-Cr-Mo and Ti-6Al-IV. In this paper, the galvanic corrosion behavior of two alloys under static condition was studied by electrochemical method. Immersion experiments show that the cobalt alloy molybdenum alloy anode, but galvanic current and its dimension similar to the blunt current, and no significant acceleration corrosion effect; titanium alloy cathode, protected. Weight loss and metallographic observations showed no evidence of corrosion during the 45-day immersion test. The results of mixed potential theory and potential protection theory show that the two alloys have a weak sensitivity to galvanic corrosion under static conditions. The galvanic corrosion potential of the two alloys is in the passivation potential region of the two alloys. The galvanic current is alloy The blunt current