| Microstructure, mechanical properties and bio-corrosion properties of Mg-Zn-Mn-Ca alloy for biomedical application |
| E. L. Zhang; L. Yang
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| 2008
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| 发表期刊 | Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing
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| ISSN | 0921-5093
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| 卷号 | 497期号:1-2页码:111-118 |
| 摘要 | Microstructure, mechanical properties and bio-corrosion properties of as-cast Mg-Zn-Mn-Ca alloys were investigated for biomedical application in detail by optical microscopy, scanning electronic microscopy (SEM), mechanical properties testing and electrochemical measurement. SEM and optical microscopy observation indicated that the grain size of the as-cast alloys significantly decreased with the increasing of Ca content up to 0.5 wt%. Further increasing of Ca content did not refine the grain more. The phase constitute was mainly controlled by the atomic ratio of Zn to Ca. When the ratio was more than 1.0-1.2, the alloy was mainly composed of primary Mg and lamellar eutectic (alpha-Mg+Ca(2)Mg(6)Zn(3)), while the alloy was composed of primary Mg and divorced eutectic (alpha-Mg+ Mg(2)Ca +Ca(2)Mg(6)Zn(3)) when the atomic ratio was less than 1.0-1.2. The yield strength of the as-cast alloy increased but the elongation and the tensile strength increased first and then decreased with the increasing of Ca content. It was thought that Mg2Ca phase deteriorated the tensile strength and ductility. Electrochemical measurements indicated that Mg(2)Ca phase improved the corrosion resistance of the as-cast alloy. (C) 2008 Elsevier B.V. All rights reserved. |
| 部门归属 | [zhang, erlin; yang, lei] chinese acad sci, inst met res, shenyang 110016, peoples r china. [zhang, erlin] jiamusi univ, sch mat sci & engn, jiamusi 154007, peoples r china.;zhang, el (reprint author), chinese acad sci, inst met res, 72 wenhua rd, shenyang 110016, peoples r china;erlin.zhang@imr.ac.cn
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| 关键词 | Magnesium Alloy
Calcium
Microstructure
Mechanical Properties
Corrosion Properties
In-vivo Corrosion
Wt.percent Zn
Tensile Properties
Magnesium Alloys
Az91d Alloy
Behavior
Bone
Temperature
Refinement
Additions
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| URL | 查看原文
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| WOS记录号 | WOS:000262033300016
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| 引用统计 |
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| 文献类型 | 期刊论文
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| 条目标识符 | http://ir.imr.ac.cn/handle/321006/33309
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| 专题 | 中国科学院金属研究所
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推荐引用方式
GB/T 7714 |
E. L. Zhang,L. Yang. Microstructure, mechanical properties and bio-corrosion properties of Mg-Zn-Mn-Ca alloy for biomedical application[J]. Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,2008,497(1-2):111-118.
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| APA |
E. L. Zhang,&L. Yang.(2008).Microstructure, mechanical properties and bio-corrosion properties of Mg-Zn-Mn-Ca alloy for biomedical application.Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,497(1-2),111-118.
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| MLA |
E. L. Zhang,et al."Microstructure, mechanical properties and bio-corrosion properties of Mg-Zn-Mn-Ca alloy for biomedical application".Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing 497.1-2(2008):111-118.
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