Effect of casting speed on microstructure, corrosion behaviour and in vivo bone reaction of Mg-rare earth alloys
文献类型：期刊论文
| 作者 | Wang, HaiJian1; Wang, HaiWei2,3; Kumazawa, Takashi1; Ju, DongYing1,4,5; Cao, JianTing1 |
| 刊名 | SCIENCE CHINA-TECHNOLOGICAL SCIENCES
 |
| 出版日期 | 2020-12-22 |
| 页码 | 10 |
| 关键词 | Mg-RE alloys microstructure corrosion resistance in vivo |
| ISSN号 | 1674-7321 |
| DOI | 10.1007/s11431-020-1689-3 |
| 通讯作者 | Ju, DongYing(dyju@sit.ac.jp) |
| 英文摘要 | 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. |
| 资助项目 | Hi-Tech Research Center and Animal Experiment Project[2019-5] |
| WOS研究方向 | Engineering ; Materials Science |
| 语种 | 英语 |
| WOS记录号 | WOS:000605549200001 |
| 出版者 | SCIENCE PRESS |
| 资助机构 | Hi-Tech Research Center and Animal Experiment Project |
| 源URL | [http://ir.imr.ac.cn/handle/321006/158951]  |
| 专题 | 金属研究所_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. |
入库方式： OAI收割
来源：金属研究所
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