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医用钴合金表面改性技术的研究进展
引用本文:于普良,杜辉,李双,胡江山,周泽.医用钴合金表面改性技术的研究进展[J].材料导报,2018,32(Z2):303-306.
作者姓名:于普良  杜辉  李双  胡江山  周泽
作者单位:武汉科技大学省部共建耐火材料与冶金国家重点实验室,武汉 430081;武汉科技大学冶金装备及控制教育部重点实验室,武汉 430081,武汉科技大学省部共建耐火材料与冶金国家重点实验室,武汉 430081;武汉科技大学冶金装备及控制教育部重点实验室,武汉 430081,武汉科技大学省部共建耐火材料与冶金国家重点实验室,武汉 430081;武汉科技大学冶金装备及控制教育部重点实验室,武汉 430081,武汉科技大学省部共建耐火材料与冶金国家重点实验室,武汉 430081;武汉科技大学冶金装备及控制教育部重点实验室,武汉 430081,武汉科技大学省部共建耐火材料与冶金国家重点实验室,武汉 430081;武汉科技大学冶金装备及控制教育部重点实验室,武汉 430081
基金项目:基金项目:国家自然科学基金(51705378;51301123);湖北省自然科学基金(2018CFB757);冶金装备及控制教育部重点实验室开放基金(2016B01);省部共建耐火材料与冶金国家重点实验室开放课题基金(2018QN15);中国博士后基金 (2017M622532)
摘    要:钴合金具有优异的生物力学特性、耐磨损性能和耐腐蚀性能,在医学植入领域有着广阔的应用前景,其表面改性技术已成为医用金属材料的研究热点和重点。本文简述了钴合金材料表面改性技术的优势,包括钴合金材料的生物力学特性、耐磨性能、耐腐蚀性能等。同时归纳了钴合金材料因人体体液腐蚀和摩擦磨损会释放出Co、Cr等金属离子而导致生物致敏等问题。在上述基础上,重点综述了近年来钴合金表面改性技术的研究进展,包括离子注入技术、选区激光熔化技术、真空沉积技术。其中,离子注入技术主要包括氮离子注入、钇离子注入、镧离子注入和钛镍离子注入等;选区激光熔化技术主要包括粉层厚度、激光功率、组分含量、扫描方式和扫描速度等;真空沉积技术主要包括物理气相沉积和化学气相沉积。针对不同钴合金表面改性技术,分别从钴合金材料的生物力学特性、耐磨性、耐腐蚀性和生物相容性等方面进行了归纳分析。最后分析了钴合金表面改性的发展趋势,认为钴合金表面改性技术应朝着高生物相容性、无金属离子释放、生物功能化、高耐腐蚀性和高耐磨性的方向发展。

关 键 词:钴合金  医学应用  表面改性  耐磨性  耐腐蚀性  生物相容性

Research Progress on Surface Modification of Cobalt Alloys for Medical Applications
YU Puliang,DU Hui,LI Shuang,HU Jiangshan and ZHOU Ze.Research Progress on Surface Modification of Cobalt Alloys for Medical Applications[J].Materials Review,2018,32(Z2):303-306.
Authors:YU Puliang  DU Hui  LI Shuang  HU Jiangshan and ZHOU Ze
Affiliation:The State Key Laboratory of Refractories and Metallurgy, Wuhan University of Science and Technology, Wuhan 430081;Key Laboratory of Metallurgical Equipment & Control Technology of Ministry of Education,Wuhan 430081,The State Key Laboratory of Refractories and Metallurgy, Wuhan University of Science and Technology, Wuhan 430081;Key Laboratory of Metallurgical Equipment & Control Technology of Ministry of Education,Wuhan 430081,The State Key Laboratory of Refractories and Metallurgy, Wuhan University of Science and Technology, Wuhan 430081;Key Laboratory of Metallurgical Equipment & Control Technology of Ministry of Education,Wuhan 430081,The State Key Laboratory of Refractories and Metallurgy, Wuhan University of Science and Technology, Wuhan 430081;Key Laboratory of Metallurgical Equipment & Control Technology of Ministry of Education,Wuhan 430081 and The State Key Laboratory of Refractories and Metallurgy, Wuhan University of Science and Technology, Wuhan 430081;Key Laboratory of Metallurgical Equipment & Control Technology of Ministry of Education,Wuhan 430081
Abstract:Cobalt alloy with excellent biomechanical properties, wear resistance and corrosion resistance, has broad application prospects in the fields of biology and medicine implantation. Surface modification of cobalt alloys for medical applications become the hotspot and keystone of the researches on medical metal material. The advantage of the cobalt alloy material surface modification was studied, including the biomechanical characteristics, wear resistance and corrosion resistance, etc. Beyond that, alloy material in body fluid not only pose fatigue corrosion, friction corrosion and other problems, but also release the metal ions such as Co and Cr for long time friction and wear, which could causes sensitization biology problems. On this base, this paper reviews the research progress on surface modification of cobalt alloys in recent years:Ion implantation technology, mainly include nitrogen ion implantation, yttrium lanthanum ion implantation, ion implantation and titanium nickel ion implantation, etc.; Selective laser melting technology, mainly include powder layer thickness, laser power, scanning speed and scanning way, etc.; Vacuum deposition technology, mainly include physical vapor deposition and chemical vapor deposition in two parts. According to different surface modification of cobalt alloy, the biomechanical characteristics, wear resistance, corrosion resistance and biocompatibility were summarized and analyzed. Cobalt alloy were also prospected the development direction of surface modification technology, and the surface modification technology of cobalt alloy should be developed in the direction of high biocompatibility, free metal ion release, bio-functionalization, high corrosion resistance and high wear resistance.
Keywords:Co alloy  medical application  surface modification  abrasive resistance  corrosion resistance  biological compatibility
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