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In vitro corrosion of Mg-6Zn-1Mn-4Sn-1.5Nd/0.5Y alloys
R. C. Zeng; L. Wang; D. F. Zhang; H. Z. Cui; E. H. Han
2014
Source PublicationFrontiers of Materials Science
ISSN2095-025X
Volume8Issue:3Pages:230-243
AbstractThe microstructure evaluation, surface morphology, chemical compositions and phase analysis of the biomedical Mg-6Zn-1Mn-4Sn-1.5Nd/0.5Y (ZMT614-1.5Nd/0.5Y) alloys were investigated by means of optical microscopy, EPMA, X-ray EDS, XRD and FTIR. The corrosion behavior was evaluated using weight-loss measurement, hydrogen evolution, electrochemical and pH measurements. The results demonstrate that the microstructure for both ZMT614-1.5Nd alloy and ZMT614-0.5Y alloy is characterized by alpha-Mg and intermetallic compounds, most of which are distributed along the grain boundaries. These second phases contain Mg2Zn, Mg2Zn11, Mg2Sn and single metal Mn, together with Mg12Nd phase for the ZMT614-1.5Nd alloy, and with Mg24Y5 phase for the ZMT614-0.5Y alloy. Honeycomb-like corrosion product layers form. The corrosion resistance of the ZMT614-0.5Y alloy is higher than that of the ZMT614-1.5Nd alloy, which is ascribed to the addition of the element Y into the alloy delaying the corrosion initiation in comparison to that of Nd element in the alloy.
description.department[zeng, rong-chang ; wang, lei ; cui, hong-zhi] shandong univ sci & technol, coll mat sci & engn, qingdao 266590, peoples r china. [zhang, ding-fei] chongqing univ, coll mat sci & engn, chongqing 400044, peoples r china. [han, en-hou] chinese acad sci, inst met res, natl engn ctr corros control, shenyang 110016, peoples r china. ; zeng, rc (reprint author), shandong univ sci & technol, coll mat sci & engn, qingdao 266590, peoples r china. ; rczeng@foxmail.com ; zhangdingfei@cqu.edu.cn
KeywordMagnesium Alloy Yttrium Neodymium Corrosion Biomaterial Magnesium-zinc Alloy Mechanical-properties Phosphate Coatings Pure Magnesium Hanks Solution Sn Addition Ca Alloy Microstructure Resistance Apatite
URL查看原文
Language英语
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/73484
Collection中国科学院金属研究所
Recommended Citation
GB/T 7714
R. C. Zeng,L. Wang,D. F. Zhang,et al. In vitro corrosion of Mg-6Zn-1Mn-4Sn-1.5Nd/0.5Y alloys[J]. Frontiers of Materials Science,2014,8(3):230-243.
APA R. C. Zeng,L. Wang,D. F. Zhang,H. Z. Cui,&E. H. Han.(2014).In vitro corrosion of Mg-6Zn-1Mn-4Sn-1.5Nd/0.5Y alloys.Frontiers of Materials Science,8(3),230-243.
MLA R. C. Zeng,et al."In vitro corrosion of Mg-6Zn-1Mn-4Sn-1.5Nd/0.5Y alloys".Frontiers of Materials Science 8.3(2014):230-243.
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