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纯镁的生物腐蚀研究
引用本文:任伊宾,黄晶晶,杨柯,张炳春,姚治铭,王浩.纯镁的生物腐蚀研究[J].金属学报,2005,41(11):1228-1232.
作者姓名:任伊宾  黄晶晶  杨柯  张炳春  姚治铭  王浩
作者单位:1. 中国科学院金属研究所,沈阳,110016
2. Division of Materials, School of Engineering, University of Queensland, Brisbane, QLD 4072, Australia
摘    要:镁及其合金作为生物医用材料具有明显的优势,可以利用其耐蚀性差的特点,发展新型医用可降解镁金属材料.本文选择纯镁为主要研究对象,从杂质含量、加工处理状态等方面研究了两种纯镁在生理盐水中的腐蚀规律,表明降低纯镁中杂质元素的含量和细化晶粒可以提高纯镁在生理盐水中的开路腐蚀电位,减缓腐蚀速率.纯镁的腐蚀速率可以通过调整杂质含量、晶粒细化和固溶处理等方法进行控制,适宜发展成为一类新型的医用可降解金属材料.

关 键 词:纯镁  生物腐蚀  生物材料
文章编号:0412-1961(2005)11-1228-05
收稿时间:2005-06-30
修稿时间:2005-06-30

Study of bio--corrosion of pure magnesium
REN Yibin,HUANG Jingjing,YANG Ke,ZHANG Bingchun,YAO Zhiming,WANG Hao.Study of bio--corrosion of pure magnesium[J].Acta Metallurgica Sinica,2005,41(11):1228-1232.
Authors:REN Yibin  HUANG Jingjing  YANG Ke  ZHANG Bingchun  YAO Zhiming  WANG Hao
Affiliation:1.Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016;2. Division of Materials, School of Engineering, University of Queensland, Brisbane, QLD 4072, Australia
Abstract:Magnesium and its alloys as bio-materials have many obvious advantages. It is possible to develop new type of biodegradable medical magnesium alloys by use of the poor corrosion resistance of magnesium. The effect of impurity content and processing state on the bio-corrosion properties of two pure magnesiums in the physiological saline solution were investigated. The results showed that both the reduction of impurity content and the grain refinement can enhance the open circuit potential of pure magnesium and decrease the corrosion rate in the physiological saline solution. The corrosion rate of pure magnesium can be controlled through ways of changing the impurity content, grain refinement and solution treatment, which makes magnesium suitable as a new type of predeveloped bio-degradable metal material.
Keywords:pure magnesium  bio-corrosion  biomaterial
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