Abstract Ternary Mg-Zn-Ca metallic glasses show promise as a bioresorbable implant material. Their susceptibility to relatively rapid corrosion rates, however, requires new ways to reduce their initial rate of corrosion post-implantation. To this end, the application of a simple phosphate conversion coating was studied on Mg 66 Zn 30 Ca 4 to determine the metallic glasses impact on coating development. A model for coating growth is proposed. The results demonstrate corrosion resistance can be improved by an order of magnitude in simulated body fluid, with a significant reduction in anodic kinetics. Furthermore, the mechanical reliability under a compressive load is improved two-fold, despite substrate relaxation due to coating.

中文翻译：

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在生物可吸收镁基金属玻璃上形成磷酸盐转化涂层及其对腐蚀性能的影响

摘要 三元 Mg-Zn-Ca 金属玻璃有望作为一种生物可吸收植入材料。然而，它们对相对较快的腐蚀速率的敏感性需要新的方法来降低植入后的初始腐蚀速率。为此，研究了在 Mg 66 Zn 30 Ca 4 上应用简单的磷酸盐转化涂层，以确定金属玻璃对涂层发展的影响。提出了涂层生长模型。结果表明，在模拟体液中，耐腐蚀性能提高一个数量级，阳极动力学显着降低。此外，尽管由于涂层导致基材松弛，但压缩载荷下的机械可靠性提高了两倍。