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Study of bio--corrosion of pure magnesium |
REN Yibin; HUANG Jingjing; YANG Ke; ZHANG Bingchun; YAO Zhiming WANG Hao |
Institute of Metal Research; Chinese Academy of Sciences |
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Cite this article:
REN Yibin; HUANG Jingjing; YANG Ke; ZHANG Bingchun; YAO Zhiming WANG Hao. Study of bio--corrosion of pure magnesium. Acta Metall Sin, 2005, 41(11): 1228-1232 .
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Abstract Magnesium and its alloys as bio-materials have many obvious advantages. It is possible to develop new type of bio-degradable 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 pre-developed bio-degradable metal material
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Received: 30 June 2005
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