NDLI: Microstructure, mechanical and bio-corrosion properties of Mn-doped Mg-Zn-Ca bulk metallic glass composites.

Content Provider	World Health Organization (WHO)-Global Index Medicus
Author	Wang, Jingfeng Huang, Song Li, Yang Wei, Yiyun Xi, Xingfeng Cai, Kaiyong
Description	Author Affiliation: Wang J ( National Engineering Research Center for Magnesium Alloys, College of Materials Science and Engineering, Chongqing University, Chongqing 400044, PR China. jfwang@cqu.edu.cn)
Abstract	The effects of Mn substitution for Mg on the microstructure, mechanical properties, and corrosion behavior of Mg69-xZn27Ca4Mnx (x=0, 0.5 and 1at.%) alloys were investigated using X-ray diffraction, compressive tests, electrochemical treatments, and immersion tests, respectively. Microstructural observations showed that the Mg69Zn27Ca4 alloy was mainly amorphous. The addition of Mn decreases the glass-forming ability, which results in a decreased strength from 545 MPa to 364 MPa. However, this strength is still suitable for implant application. Polarization and immersion tests in the simulated body fluid at 37 °C revealed that the Mn-doped Mg-Zn-Ca alloys have significantly higher corrosion resistance than traditional ZK60 and pure Mg alloys. Cytotoxicity test showed that cell viabilities of osteoblasts cultured with Mn-doped Mg-Zn-Ca alloys extracts were higher than that of pure Mg. Mg68.5Zn27Ca4Mn0.5 exhibits the highest bio-corrosion resistance, biocompatibility and has desirable mechanical properties, which could suggest to be used as biomedical materials in the future.
File Format	HTM / HTML
ISSN	09284931
Issue Number	7
Volume Number	33
e-ISSN	18730191
Journal	Materials Science and Engineering: C
Language	English
Publisher	Elsevier
Publisher Date	2013-10-01
Publisher Place	Netherlands
Access Restriction	Subscribed
Subject Keyword	Discipline Materials Science Alloys Pharmacology Biocompatible Materials Glass Chemistry Magnesium Mechanical Phenomena Animals Calorimetry, Differential Scanning Cell Death Drug Effects Cell Survival Cells, Cultured Corrosion Hydrogen Analysis Immersion Materials Testing Microscopy, Electron, Scanning Osteoblasts Cytology Metabolism Potentiometry Rats Spectrometry, X-ray Emission Temperature X-ray Diffraction Journal Article Research Support, Non-u.s. Gov't
Content Type	Text
Resource Type	Article
Subject	Mechanics of Materials Biomaterials Condensed Matter Physics Bioengineering Mechanical Engineering

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