Effect of Microstructure and Texture on Corrosion Resistance of Magnesium Alloy
Magnesium alloys are considered as candidate materials for biodegradable implants. However, the key issue is that they corrode too fast in physiological environment. The aim of this study is to investigate the effect of microstructure and texture of magnesium alloys on their corrosion resistance. Magnesium alloy AZ31 extruded rod, hot rolled sheet and extruded sheet with different initial microstructure and texture were prepared. Then they were immersed in conventional simulated body fluid (SBF) for several days for corrosion evaluation. The corrosion products and precipitates on their surfaces were examined by scanning electron microscopy (SEM). The preliminary results showed that the initial microstructure and texture of AZ31 alloys has considerable effect on the weight loss rate of the alloys, suggesting that it is possible to enhance the corrosion resistance of AZ31 alloys through tailoring the microstructure and texture of the alloys.
Magnesium Alloy Corrosion Microstructure Texture Biomaterial
Renlong XIN Maoyin WANG Jiacheng GAO Pei LIU Qing LIU
College of Materials Science and Engineering, Chongqing University,Chongqing, 400044, China
国际会议
重庆
英文
1160-1163
2008-06-09（万方平台首次上网日期，不代表论文的发表时间）