镁基生物可降解材料耐蚀性能改善研究进展  

The Research Progress of Improving Corrosion Resistance of Magnesium Based Biodegradable Materials

作　　者：韩知为 张秉君[1] 翁杰[1] 

机构地区：[1]西南交通大学材料科学与工程学院材料教育部重点实验室,四川成都610031

出　　处：《合成材料老化与应用》2016年第2期62-67,共6页Synthetic Materials Aging and Application

基　　金：国家自然科学基金资助项目(51172188)

摘　　要：21世纪以来,新型可降解生物镁合金因其良好的可降解性能,与自体骨相似的机械性能而被研究者广泛关注,显示出良好的发展前景。然而其在体液环境下过快降解,造成局部碱化和局部气腔等现象均不利于其作为植入物的功能性表达和患处的正常愈合。文章综述了可降解镁合金在生物医学骨科材料领域的应用研究进展,重点分析讨论了国内外可降解镁合金耐蚀性能改善的情况及现存的推向临床的问题,提出了生物可降解镁合金应用于临床所亟待解决的问题,并展望了未来的发展趋势。Since twenty-first century,magnesium is playing an increasingly important role in the field of biode- gradable implants. Magnesium has good biodegradability and its mechanical properties are similar to those of natural bone, showing a good development prospect. However, the degradation of magnesium would be too fast among the physiological environments in the body and would make against the functional expression of implant because of the local alkalization and local gas cavity after degradation. This paper reviews the progress in application of biodegrad- able magnesium alloy in the field of biomedical material for orthopedics, discusses the research aiming at the ira- some problems related to its degradation is solved.

关 键 词：镁 腐蚀 可替代材料 表面改性 

分 类 号：TG146.22[一般工业技术—材料科学与工程]