| Effect of casting speed on microstructure, corrosion behaviour and in vivo bone reaction of Mg-rare earth alloys | |
| Wang, HaiJian1; Wang, HaiWei2,3; Kumazawa, Takashi1; Ju, DongYing1,4,5; Cao, JianTing1 | |
| Corresponding Author | Ju, DongYing(dyju@sit.ac.jp) |
| 2020-12-22 | |
| Source Publication | SCIENCE CHINA-TECHNOLOGICAL SCIENCES
 |
| ISSN | 1674-7321 |
| Pages | 10 |
| Abstract | 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. |
| Keyword | Mg-RE alloys microstructure corrosion resistance in vivo |
| Funding Organization | Hi-Tech Research Center and Animal Experiment Project |
| DOI | 10.1007/s11431-020-1689-3 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | Hi-Tech Research Center and Animal Experiment Project[2019-5] |
| WOS Research Area | Engineering ; Materials Science |
| WOS Subject | Engineering, Multidisciplinary ; Materials Science, Multidisciplinary |
| WOS ID | WOS:000605549200001 |
| Publisher | SCIENCE PRESS |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/158952 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Ju, DongYing |
| Affiliation | 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 |
| Recommended Citation 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. |
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