J. Mater. Sci. Technol. ›› 2021, Vol. 81: 88-96.DOI: 10.1016/j.jmst.2020.11.060

• Research Article • Previous Articles     Next Articles

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

Ming Gaoa,b, Ke Yangb, Lili Tanb,*(), Zheng Mab,*()   

  1. aSchool of Materials Science and Engineering, University of Science and Technology of China, Shenyang, 110016, China
    bShi-changxu Innovation Center for Advanced Materials, Institute of Metal Research, Chinese Academy of Sciences, Shenyang, 110016, China
  • Received:2020-08-28 Revised:2020-11-24 Accepted:2020-11-29 Published:2021-01-07 Online:2021-01-07
  • Contact: Lili Tan,Zheng Ma
  • About author:zma@imr.ac.cn (Z. Ma).
    *E-mail addresses: lltan@imr.ac.cn (L. Tan),


Mg-Zn-Nd alloy is a promising biodegradable metal material for surgical staples during the reconstruction 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 effectiveness 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.

Key words: Bi-direction drawing, Texture, Mechanical property, Corrosion resistance