Effect of casting speed on microstructure, corrosion behaviour and in vivo bone reaction of Mg-rare earth alloys

doi:10.1007/s11431-020-1689-3

IMR OpenIR

	Effect of casting speed on microstructure, corrosion behaviour and in vivo bone reaction of Mg-rare earth alloys
	Wang, HaiJian 1; Wang, HaiWei 2,3; Kumazawa, Takashi 1; Ju, DongYing 1,4,5; Cao, JianTing 1
通讯作者	Ju, DongYing(dyju@sit.ac.jp)
	2020-12-22
发表期刊	SCIENCE CHINA-TECHNOLOGICAL SCIENCES
ISSN	1674-7321
页码	10
摘要	In this study, two casting speeds of 10 and 30 r/min were used in vertical twin-roll casting (TRC) to obtain Mg-rare earth (Mg-RE) alloys, and their microstructures, corrosion behaviours and in vivo bone reactions were investigated in detail. The results indicated that the roll-castings of TRC-30 r/min exhibited a finer grain size and higher volume fraction of non-crystallization than those in castings of TRC-10 r/min. Moreover, the results of electrochemical impedance spectroscopy (EIS) and potentiodynamic polarization indicated that the castings of TRC-30 r/min displayed a higher corrosion resistance compared with those in the castings of TRC-10 r/min. Animal tests showed that a higher degree of newly formed bone tissues was achieved by implants of TRC-30 r/min. Additionally, in vivo tests displayed that degradation properties of the TRC-30-r/min implants were better than those of the TRC-10-r/min implants; furthermore, the degradation layer was a two-layer structure, and P and Ca were enriched in the outer degradation layer. In summary, these findings elucidated that casting speed has a substantial effect on the microstructure and degradation property of Mg-based implants, and the degradation property performs better with increased casting speed.
关键词	Mg-RE alloys microstructure corrosion resistance in vivo
资助者	Hi-Tech Research Center and Animal Experiment Project
DOI	10.1007/s11431-020-1689-3
收录类别	SCI
语种	英语
资助项目	Hi-Tech Research Center and Animal Experiment Project[2019-5]
WOS研究方向	Engineering ; Materials Science
WOS类目	Engineering, Multidisciplinary ; Materials Science, Multidisciplinary
WOS记录号	WOS:000605549200001
出版者	SCIENCE PRESS
引用统计	被引频次：2[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/158952
专题	中国科学院金属研究所
通讯作者	Ju, DongYing
作者单位	1.Saitama Inst Technol, Grad Sch Engn, Dept Elect Engn, Fukaya 3690293, Japan 2.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China 3.Univ Sci & Technol China, Sch Mat Sci & Engn, Hefei 230026, Peoples R China 4.Univ Sci & Technol Liaoning, Sch Met & Mat, Anshan 114051, Peoples R China 5.Ningbo Haizhi Inst Mat Ind Innovat, Ningbo 315000, Peoples R China
推荐引用方式 GB/T 7714	Wang, HaiJian,Wang, HaiWei,Kumazawa, Takashi,et al. Effect of casting speed on microstructure, corrosion behaviour and in vivo bone reaction of Mg-rare earth alloys[J]. SCIENCE CHINA-TECHNOLOGICAL SCIENCES,2020:10.
APA	Wang, HaiJian,Wang, HaiWei,Kumazawa, Takashi,Ju, DongYing,&Cao, JianTing.(2020).Effect of casting speed on microstructure, corrosion behaviour and in vivo bone reaction of Mg-rare earth alloys.SCIENCE CHINA-TECHNOLOGICAL SCIENCES,10.
MLA	Wang, HaiJian,et al."Effect of casting speed on microstructure, corrosion behaviour and in vivo bone reaction of Mg-rare earth alloys".SCIENCE CHINA-TECHNOLOGICAL SCIENCES (2020):10.