医用镁合金性能及其合金化改善途径研究进展

Research progress of medical magnesium alloy properties and its alloying improvement path

医用镁合金耐腐蚀性能和强度相较于传统医用金属材料较差,严重限制了其在医疗器械领域中的应用。研究表明,合金化可以显著改善医用镁合金的性能,但是由于不同合金元素的加入对镁合金力学性能、耐腐蚀性能和生物相容性的影响不同,并且元素对合金的改善效果也存在差异。因此,研究不同元素的添加对医用镁合金性能影响具有重要的意义。本文首先综述了近年来对镁基合金力学性能、腐蚀降解性能及其生物相容性的综合研究,其次分析了镁基合金在添加了不同合金元素下的性能差异,并针对合金化后医用镁基合金材料的局限性,提出了未来发展建议,期望为今后的临床应用提供宝贵经验。

The corrosion resistance and strength of magnesium alloys are poor compared to traditional medical metal materials,which seriously limits their application in the field of medical devices.Studies have shown that alloying can significantly improve the properties of medical magnesium alloys,but due to the different effects of the addition of different alloying elements on the mechanical properties,corrosion resistance and biocompatibility of magnesium alloys,and there are differences in the improvement effect of the elements on the alloys.Therefore,it is of great significance to study the effects of the addition of different elements on the properties of medical magnesium alloys.This paper firstly reviews the comprehensive studies on the mechanical properties,corrosion degradation properties and their biocompatibility of magnesium-based alloys in recent years,and secondly analyses the differences in the properties of magnesium-based alloys with the addition of different alloying elements,and puts forward suggestions for the future development of medical magnesium-based alloy materials in view of the limitations of alloying and expects to provide valuable experience for future clinical applications.