生物医用镁合金腐蚀行为的研究进展EI北大核心CSCD

近年来,镁合金作为生物可降解材料受到了越来越多研究者的关注,由于其具有良好的生物相容性、力学性能及可降解吸收等特点,被誉为一种“革命性的生物材料”。然而,由于腐蚀速率过快和存在局部腐蚀的缺点,目前的生物镁合金仍达不到临床应用的要求。本文从高纯化、合金化、热处理工艺、表面改性等方面综述了最近几年生物镁合金在提高腐蚀性能方面的研究进展,并从添加无毒性合金元素,适当的表面涂覆,先进的制备技术及热处理工艺方面,对如何研制出腐蚀性能更好的生物可降解材料进行了展望。

Research progress in corrosion behavior of biomedical magnesium alloys

As a biodegradable material,magnesium alloys has been attracted by more researchers,recently.Due to good biocompatibility,mechanical properties and biodegradable absorption charac-teristics,it has been honored as revolutionary biological materials.However,current bio-magnesium alloy still could not meet the requirements of clinical application,due to its shortcomings of rapid corrosion rate and local corrosion.In this paper,the progress of bio-magnesium alloy in improving the corrosion performance was reviewed from the aspects of high purity,alloying,heat treatment process and surface modification.The paper makes a prospect on how to develop the biodegradable materials with better corrosion performance in terms of adding non-toxic alloying elements,proper surface coating,advanced preparation technology and heat treatment process.