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首页> 外文期刊>Journal of Materials Engineering and Performance >The Influence of Zn Content on the Corrosion and Wear Performance of Mg-Zn-Ca Alloy in Simulated Body Fluid
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The Influence of Zn Content on the Corrosion and Wear Performance of Mg-Zn-Ca Alloy in Simulated Body Fluid

机译：锌含量对Mg-Zn-Ca合金在模拟体液中腐蚀和磨损性能的影响

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摘要

Mg-Zn-Ca alloy has been attracting increasing attention as a potential biodegradable implant material. In this paper, Mg-3Zn-0.2Ca and Mg-4Zn-0.2Ca alloys were prepared by means of vacuum melting and subsequent hot extrusion process. The influences of Zn content on the microstructure, mechanical properties, and corrosion and wear behavior of Mg-Zn-Ca alloys in simulated body fluid (SBF) were studied. The results show that with increased Zn content, the grain size and corrosion resistance were decreased, while the mechanical strength and wear resistance were increased, under both dry sliding and SBF-lubricated conditions. For the same Mg-Zn-Ca alloy, the wear loss rate under SBF lubrication was higher than dry sliding condition, indicating a strong corrosion-assisted wear effect of SBF to the Mg-Zn-Ca alloy.
机译：Mg-Zn-Ca合金作为潜在的可生物降解的植入物材料已引起越来越多的关注。本文通过真空熔融和随后的热挤压工艺制备了Mg-3Zn-0.2Ca和Mg-4Zn-0.2Ca合金。研究了锌含量对Mg-Zn-Ca合金在模拟体液（SBF）中的组织，力学性能以及腐蚀和磨损行为的影响。结果表明，在干滑和SBF润滑条件下，随着Zn含量的增加，晶粒尺寸和耐蚀性降低，而机械强度和耐磨性提高。对于相同的Mg-Zn-Ca合金，SBF润滑下的磨损率高于干滑动条件，表明SBF对Mg-Zn-Ca合金具有很强的腐蚀辅助磨损作用。

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