Recent progress of novel biodegradable zinc alloys: from the perspective of strengthening and toughening

Journal of Materials Research and Technology

Feng Xue¹  Yuna Wu²  Jinghua Jiang³  Huan Liu⁴  Zhichao Hu⁵  Jia Ju⁶  Jing Bai⁶  Xiaoru Zhuo⁶ 

[1] Corresponding author.;Nanjing Institute of Agricultural Mechanization, Ministry of Agriculture and Rural Affairs, Nanjing, 210014, China;Nantong Ocean and Coastal Engineering Research Institute, Hohai University, China;Suqian Research Institute, Hohai University, Suqian 223800, China;College of Materials Engineering, Nanjing Institute of Technology, Nanjing, 211167, China;College of Mechanics and Materials, Hohai University, Nanjing, 210000, China;

关键词: Zn alloys;    Biodegradable metallic materials;    Alloying elements;    Mechanical properties;    Second phase;   

DOI  :  

来源: DOAJ

【 摘 要 】

With a suitable degradation rate, fully bioresorbable degradation products, and excellent biocompatibility, Zn and its alloys are regarded as the most promising biodegradable metallic materials for clinical applications. However, their strength and ductility are generally below the mechanical benchmark for biodegradable implants, such as bone fixtures and stents, which restrict wider applications. Over the past decade, enormous efforts have been dedicated to improving the mechanical performance of Zn alloys, which greatly advance our understanding of Zn alloy development. This review highlights recent progress of biodegradable Zn alloys from the perspective of strengthening and toughening, with an emphasis on the relationship between the microstructure and the mechanical properties of the four major Zn alloy systems: Zn–Mg, Zn–Li, Zn–Mn, and Zn–Cu based alloys. The dominant mechanisms for high strength and high ductility of these alloys are elaborated. Finally, the future challenges and research directions of the field are outlined. This review strives for provide guidance for the future development of high-performance bioresorbable Zn alloys.

【 授权许可】

Unknown