Effect of HF Concentration on Corrosion Resistance of Biomedical Implants

摘要：

This work compared the variation of weight of Mg l％Ca as cast in different concentrations of hydrofluoric acid(HF)such as 45％ -40％ -35％ -25％ -20 ％ -13％ -7 ％ for 24 h at room temperature to be utilized in biomaterial application like hip,knee implants that have effect on corrosion resistance.By immersion Mg l％Ca alloys in HF,the layer of MgF2 was constituted on the surface of alloy and this layer improves the corrosion and causes weight gain.The results show that in order to get a better corrosion resistance,surface treatment should be done in 40％ of HF,because the weight gain is more than other HF concentrations.

关键词： Magnesium acid treatment biodegradable implant corrosion resistance

作者: Mahtab Assadian Mohd Hasbullah ldris Saleh Mehraban Sajjad Jafari Mohammed Rafiq Abdul Kadir

作者单位: Materials Engineering Dept.,Faculty of Mechanical Engineering,Universiti Teknologi Malaysia,Skudai 8 Department of Biomechanics & Biomedical Materials,Faculty of Biomedical Engineering & Health Science

会议类型: 国际会议

会议名称: 2012 2nd International Conference on Advanced Material Research(2012 第二届先进材料研究国际会议 ICAMR2012)

会议地点: 成都

会议语种:英文

页码: 837-840

在线出版日期: 2012-01-07（万方平台首次上网日期，不代表论文的发表时间）