| STUDY ON CORROSION OF MEDICAL Mg-Ca AND Mg-Li-Ca ALLOYS | |
| Zeng Rongchang1,2,3; Guo Xiaolong2; Liu Chenglong2; Cui Hongzhi1; Tao Wu2; Liu Yunyi2; Li Bowen2 | |
| 通讯作者 | Zeng Rongchang(rczeng@gmail.com) |
| 2011-11-11 | |
| 发表期刊 | ACTA METALLURGICA SINICA
 |
| ISSN | 0412-1961 |
| 卷号 | 47期号:11页码:1477-1482 |
| 摘要 | The corrosion behaviors of the extruded Mg-0.54Ca, and Mg-1.33Li-0.6Ca alloys in simulated body fluids (SBFs) were investigated using weight loss, hydrogen evolution and pH value measurement as well as dynamic electrochemical technique. The microstructure and corrosion morphology of these alloys were discerned by means of OM and SEM, and their corrosion products were analyzed by XRD. The results show that the microstructure is composed of alpha-Mg matrix and secondary phases: Mg2Ca and CaLi2 for the Mg-1.33Li-0.6Ca alloy, while alpha-Mg and Mg2Ca for the Mg-0.54Ca alloy. At the initial immersion stage, the corrosion rate of the Mg-1.33Li-0.6Ca alloy is slightly faster than that of the Mg-0.54Ca alloy, whereas at the subsequent period the Mg-1.33Li-0.6Ca alloy has a. corrosion resistance higher than the Mg-0.54Ca alloy. Lithium let to the formation of a dense corrosion product layer, which consists LiH, Mg(OH)(2), MgCO3, CaCO3, CaMgCO3 and CaMgPO4 for the Mg-1.33Li-0.6Ca alloy, however, it consists of MgCO3, CaCO3 and CaMgPO4 for Mg-0.54Ca. Pitting and filiform corrosions are the main corrosion types of these alloys in SBFs. |
| 关键词 | magnesium-lithium-calcium alloy biomaterial corrosion simulated body fluid polarization |
| DOI | 10.3724/SP.J.1037.2011.00325 |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS研究方向 | Metallurgy & Metallurgical Engineering |
| WOS类目 | Metallurgy & Metallurgical Engineering |
| WOS记录号 | WOS:000299492300019 |
| 出版者 | SCIENCE PRESS |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.imr.ac.cn/handle/321006/104546 |
| 专题 | 中国科学院金属研究所 |
| 通讯作者 | Zeng Rongchang |
| 作者单位 | 1.Shandong Univ Sci & Technol, Coll Mat Sci & Engn, Qingdao 266590, Peoples R China 2.Chongqing Univ Technol, Sch Mat Sci & Engn, Chongqing 400050, Peoples R China 3.Chinese Acad Sci, Inst Met Res, State Key Lab Corros & Protect, Shenyang 110016, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zeng Rongchang,Guo Xiaolong,Liu Chenglong,et al. STUDY ON CORROSION OF MEDICAL Mg-Ca AND Mg-Li-Ca ALLOYS[J]. ACTA METALLURGICA SINICA,2011,47(11):1477-1482. |
| APA | Zeng Rongchang.,Guo Xiaolong.,Liu Chenglong.,Cui Hongzhi.,Tao Wu.,...&Li Bowen.(2011).STUDY ON CORROSION OF MEDICAL Mg-Ca AND Mg-Li-Ca ALLOYS.ACTA METALLURGICA SINICA,47(11),1477-1482. |
| MLA | Zeng Rongchang,et al."STUDY ON CORROSION OF MEDICAL Mg-Ca AND Mg-Li-Ca ALLOYS".ACTA METALLURGICA SINICA 47.11(2011):1477-1482. |
| 条目包含的文件 | 条目无相关文件。 | |||||
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