Improvement of mechanical property and corrosion resistance of Mg-Zn-Nd alloy by bi-direction drawing

• 作者: Ming Gao Ke Yang Lili Tan Zheng Ma
• 来源期刊: 材料科学技术（英文版）
• 年，卷（期）: 2021,（22）
• 页码范围: 88-96
• 页数: 9页
• 语种: 英文

摘要

Mg-Zn-Nd alloy is a promising biodegradable metal material for surgical staples during the reconstruc-tion of digestive tract due to its good biocompatibility and suitable mechanical properties.However,its deformation property and corrosion resistance should be improved to make better safety and effective-ness of staples.In the present study,bi-direction drawing was adopted to maintain the initial texture characteristics,and improve mechanical property and corrosion resistance of Mg-2Zn-0.5Nd alloy.The results showed that the microstructure after bi-direction did not change too much,but the texture could maintain its initial characteristics.The ductility of the alloy with 60 ％ accumulative area reduction after bi-direction drawing was increased by 70 ％,indicating that an outstanding deformation property of Mg-Zn-Nd alloy can be obtained by bi-direction drawing.The corrosion resistance was also improved after bi-direction drawing compared with that under single direction drawing.