Surface characteristics and corrosion resistance of biodegradable magnesium alloy ZK60 modified by Fe ion implantation and deposition

被引：23
作者：
Zheng, Yang [1 ,2 ]
Li, Yan [1 ,3 ]
Chen, Jihua [4 ]
Zou, Zhengyang [4 ]
机构：
[1] Beihang Univ, Sch Mat Sci & Engn, Beijing 100191, Peoples R China
[2] Beihang Univ, Minist Educ, Key Lab Aerosp Adv Mat & Performance, Beijing 100191, Peoples R China
[3] Beihang Univ, Beijing Key Lab Adv Funct Mat & Thin Film Technol, Beijing 100191, Peoples R China
[4] Hunan Univ, Sch Mat Sci & Engn, Changsha 410082, Hunan, Peoples R China
来源：
PROGRESS IN NATURAL SCIENCE-MATERIALS INTERNATIONAL | 2014年 / 24卷 / 05期
基金：
新加坡国家研究基金会; 中国国家自然科学基金;
关键词：
Biodegradable magnesium alloy; Fe; MEVVA; Ion implantation and deposition; Corrosion; MECHANICAL-PROPERTIES; IN-VITRO; MG; BEHAVIOR; ZN; BIOCOMPATIBILITY; CYTOCOMPATIBILITY; FLUIDS; VIVO; MN;
D O I：
10.1016/j.pnsc.2014.08.011
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The ZK60 magnesium alloy has been modified by Fe ion implantation and deposition with a metal vapor vacuum arc plasma source. The surface morphology, phase constituent and elemental distribution are determined by scanning electron microscopy, transmission electron microscopy, X-ray diffractometer and Auger electron spectroscopy. The results show that Fe thin film is deposited on ZK60 alloy and the corresponding thickness increases from 2.73 mu m to 6.36 mu m with increasing deposition time A transition layer mainly composed of Mg, Fe and O elements is formed between Fe thin film and ZK60 substrate. The potentiodynamic polarization tests reveal that a high corrosion potential and a low corrosion current density are detected for the Fe deposited ZK60 alloy, indicating the improvement of corrosion resistance. The tensile deformation test indicates that the Fe deposited film on the ZK60 substrate can sustain 1% tensile strain without any cracks. (C) 2014 Chinese Materials Research Society. Production and hosting by Elsevier B.V. All rights reserved.
引用
收藏
页码：547 / 553
页数：7
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