Microstructure, Mechanical Properties, Corrosion Behavior and   Biocompatibility of As-Extruded Biodegradable Mg-3Sn-1Zn-0.5Mn Alloy

doi:10.1016/j.jmst.2016.07.004

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	Microstructure, Mechanical Properties, Corrosion Behavior and Biocompatibility of As-Extruded Biodegradable Mg-3Sn-1Zn-0.5Mn Alloy
	Hou, Lida ; Li, Zhen ; Zhao, Hong ; Pan, Yu ; Pavlinich, Sergey ; Liu, Xiwei ; Li, Xinlin ; Zheng, Yufeng ; Li, Li
刊名	JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
	2016
关键词	Biodegradable magnesium alloy Extrusion Mechanical property Corrosion Biocompatibility IN-VIVO CORROSION ZA84 MAGNESIUM ALLOY MG-ZN ALLOYS SN ALLOYS BIOMEDICAL APPLICATION ORTHOPEDIC IMPLANTS CAST MICROSTRUCTURE TENSILE PROPERTIES CREEP-BEHAVIOR VITRO
DOI	10.1016/j.jmst.2016.07.004
英文摘要	The microstructure evolution and mechanical properties of biodegradable Mg-3Sn-1Zn-0.5Mn alloys were investigated by the optical microscopy, X-ray diffractometer and a universal material testing machine. The corrosion and degradation behaviors were studied by potentiodynamic polarization method an(immersion test in a simulated body fluid (SBF). It was found that the as-extruded Mg-3Sn-1Zn-0.5Mr alloy has the fine equiaxed grains which underwent complete dynamic recrystallization during the ho extrusion process, with the second phase particles of Mg2Sn precipitated on the grain boundaries am inside the grains. The tensile strength and elongation of as-extruded Mg-3Sn-1Zn-0.5Mn alloys were 244 +/- 3.7 MPa and 19.3% +/- 1.7%, respectively. The potentiodynamic polarization curves in SBF solution indicated the better corrosion resistance of the as-extruded Mg-3Sn-1Zn-0.5Mn alloy in the SBF solution. Immersion test in the SBF solution for 720 h revealed that the corrosion rate of as-extrude, Mg-3Sn-1Zn-0.5Mn alloy was nearly 4 +/- 0.33 mm/year. The hemolysis rate of as-extruded Mg-3Sn-1Zn-0.5Mn alloy was lower than the safe value of 5% according to ISO 10993-4. As-extruded Mg-3Sn-1Zn-0.5Mn alloy showed good biocompatibility after being implanted into the dorsal muscle and the. femoral shaft of the rabbit, and no abnormalities were found after short-term implantation. It was re vealed that the as-extruded Mg-3Sn-1Zn-0.5Mn alloy is a promising material for biodegradable implants which possesses an interesting combination of preferred mechanical properties, better corrosion resistance and biocompatibility. Copyright (C) 2016, The editorial office of Journal of Materials Science & Technology. Published by, Elsevier Limited.; National Natural Science Fund for Young Scientists of China [51301049]; Fundamental Research Funds for the Central Universities [HEUCF201310024]; National Natural Science Foundation of China [81271676]; National High Technology Research and Development Program of China ("863 Program") [2009AA03Z423]; SCI(E); 中国科技核心期刊(ISTIC); ARTICLE; lili_heu@hrbeu.edu.cn; 9; 874-882; 32
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/451299]
专题	工学院
推荐引用方式 GB/T 7714	Hou, Lida,Li, Zhen,Zhao, Hong,et al. Microstructure, Mechanical Properties, Corrosion Behavior and Biocompatibility of As-Extruded Biodegradable Mg-3Sn-1Zn-0.5Mn Alloy[J]. JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,2016.
APA	Hou, Lida.,Li, Zhen.,Zhao, Hong.,Pan, Yu.,Pavlinich, Sergey.,...&Li, Li.(2016).Microstructure, Mechanical Properties, Corrosion Behavior and Biocompatibility of As-Extruded Biodegradable Mg-3Sn-1Zn-0.5Mn Alloy.JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY.
MLA	Hou, Lida,et al."Microstructure, Mechanical Properties, Corrosion Behavior and Biocompatibility of As-Extruded Biodegradable Mg-3Sn-1Zn-0.5Mn Alloy".JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY (2016).