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首页> 外文期刊>International Journal of Electrochemical Science >Behavior of Electrodeposited Layer on Mg (ZE41A) Alloy Under Tribo-Corrosion Condition
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Behavior of Electrodeposited Layer on Mg (ZE41A) Alloy Under Tribo-Corrosion Condition

机译：摩擦腐蚀条件下Mg（ZE41A）合金上电沉积层的行为

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摘要

In this paper the Tribological-Corrosion resistance of Tagnite coating referred to as chromate freeelectrodeposited coating on magnesium alloy (ZE41A). The electrode layer was evaluated in 3% NaClwas assessed. An environmental compatible Tagnite treatment coating was utilized on a ZE41Amagnesium alloy. Two application were used for the electrodeposition of coating by immersionmethod and brush method. The results showed an improvement in current density and Tribo-corrosionresistant surface for the Brush Tagnite electrodeposition coating method. The Tagnite anodic electro- deposition of coating appeared to consist of a thin and cracked coating layer with ry-mud morphology. The Tribo-Potential wear tests (TP) indicated a reduction in coefficient of friction as loadincreases with poor film adhesion compared to Tribo-wear tests (T); this effect has resulted from anoxidation wear mechanism that has dominated the surface of the magnesium alloy. The domination ofabrasive wear mechanism in the tribo tests indicated by a high volume wear rate values, whichconcluded that it was better to polarize magnesium alloy through anodic oxidation in artificial seawaterenvironment. The improved tribological-corrosion behavior of the electrodeposited magnesium alloywas attributed to the formation of thick magnesium oxide and magnesium hydroxide films occurringon the contacted surfaces.
机译：本文对镁合金（ZE41A）上称为铬酸盐的无铬电镀层的Tagnite涂层的耐摩擦腐蚀性能进行了研究。用3％的NaCl评估电极层。在ZE41镁合金上使用了环境兼容的Tagnite处理涂层。采用浸涂法和刷涂法两种方法对涂层进行电沉积。结果表明，电刷Tagnite电沉积涂覆方法可改善电流密度和抗摩擦腐蚀性能。塔格尼特阳极涂层的电沉积似乎是由薄且破裂的具有莱姆泥状形态的涂层组成。与摩擦磨损试验（T）相比，摩擦载荷试验（TP）表明摩擦系数减小，因为载荷增加且薄膜附着力差。这种作用是由于氧化磨损机理占据了镁合金表面的主导地位。在摩擦试验中，磨料磨损机理占主导地位，这表明较高的体积磨损率值，这表明在人造海水环境中最好通过阳极氧化使镁合金极化。电沉积镁合金摩擦磨损性能的改善归因于在接触表面上形成了厚的氧化镁和氢氧化镁膜。

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