The in vivo degradation and bone-implant interface of Mg-Nd-Zn-Zr alloy screws: 18 months post-operation results
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- 作者：Jialin Niua ; 1 ; Meiping Xiongb ; 1 ; Xingmin Guana ; Jian Zhanga ; Hua Huanga ; Jia Peia ; Guangyin Yuana ; gyyuan@sjtu.edu.cn" class="auth_mail" title="E-mail the corresponding author
- 关键词：A. Magnesium ; B. SEM ; C. Interfaces
- 刊名：Corrosion Science
- 出版年：2016
- 出版时间：December 2016
- 年：2016
- 卷：113
- 期：Complete
- 页码：183-187
- 全文大小：2274 K
文摘
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The long-term degradation of Mg-Nd-Zn-Zr alloy screws in mandible bone of rabbits is investigated.
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At 18 months, the screw volume has been reduced by ∼90 %, and the averaged corrosion rate is 0.122 ± 0.042 mm/year.
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The degradation products show two-layer structure, and the outer layer shows similar composition with new bone tissue.