UHP Mg-Ge alloys was recently found to provide excellent corrosion resistance. This paper provides new insights on the mechanism of improved corrosion resistance of UHP Mg-Ge alloys in Hanks' solution. The studied UHP Mg-0.5Ge and UHP Mg-1Ge alloys showed superior corrosion resistance compared to UHP Mg and WE43, with the Mg-1Ge exhibiting the best corrosion performance. The exceptional corrosion resistance of the UHP alloy is attributed to (i) MgGe's ability to suppress cathodic kinetics, (ii) Ge's capability to accelerate the formation of a highly passive layer, and the (iii) low amounts of corrosion-accelerating impurities.

中文翻译：

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模拟生理环境下超高压镁锗合金高耐腐蚀性的新见解

最近发现 UHP Mg-Ge 合金具有优异的耐腐蚀性。本文对汉克斯溶液中 UHP Mg-Ge 合金耐腐蚀性能提高的机制提供了新的见解。与UHP Mg和WE43相比，所研究的UHP Mg-0.5Ge和UHP Mg-1Ge合金表现出优异的耐腐蚀性能，其中Mg-1Ge表现出最好的耐腐蚀性能。 UHP 合金卓越的耐腐蚀性能归因于 (i) MgGe 抑制阴极动力学的能力，(ii) Ge 加速高度钝化层形成的能力，以及 (iii) 少量加速腐蚀的杂质。