摘要
镁合金是优异的轻量化材料和极具潜力的人体植入材料,但其耐蚀性差。激光表面熔凝技术可快速在镁合金表面形成晶粒细小的熔凝层,改善镁合金表面微观形貌和组织结构,对提高其表面耐蚀性和生物相容性有重要作用。综述了近年来镁合金激光表面熔凝处理的相关研究工作,分析了熔凝处理工艺对镁合金微观结构、成分、润湿性、耐蚀性和生物相容性的影响。总结并展望了激光熔凝处理在镁合金的组织结构转变、腐蚀机理及力学行为、降解行为和生物相容性等方面的发展方向。
Magnesium alloys are excellent lightweight material and potential implant material for human body.However,they are active and have poor corrosion resistance.The laser surface melting(LSM) technology can quickly form a melting layer with fine grains on the surface of magnesium alloy and change the surface microstructure and composition,and has an important influence on improving the corrosion resistance and biocompatibility.The recent studies on laser surface melting of the magnesium alloys are reviewed.The effect of laser surface melting on microstructure,composition,wettability,corrosion resistance and biocompatibility of the magnesium alloys is analyzed.The development directions of laser melting treatment on microstructure transformation,corrosion mechanism and mechanical behavior,degradation behavior and biocompatibility of the magnesium alloys are summarized and prospected.
作者
张玺
温金浩
武冰冰
解芳
马新波
孔凡校
Zhang Xi;Wen Jinhao;Wu Bingbing;Xie Fang;Ma Xinbo;Kong Fanxiao(School of Intelligent Manufacturing,Nanyang Institute of Technology,Nanyang Henan 473000,China;College of Materials Science and Engineering,Chongqing University,Chongqing 400030,China)
出处
《金属热处理》
CAS
CSCD
北大核心
2023年第7期237-245,共9页
Heat Treatment of Metals
基金
国家自然科学基金(51605230)
河南省重点研发与推广专项(科技攻关)(222102240002和212102210048)
南阳理工学院交叉科学研究项目(520064)。
关键词
镁合金
激光表面熔凝
微观结构
耐蚀性
生物相容性
magnesium alloy
laser surface melting
microstructure
corrosion resistance
biocom patibility
