Microstructure evolution and mechanical properties of biomedical Mg-Zn-Gd alloy wires

17th IUMRS International Conference in Asia

Chunlei, Gan^1,2 ; Xiaohui, Li^1,2 ; Deng, Nong^1,2 ; Xiang, Zhang^1,3 ; Kaihong, Zheng^1,2 ; Zhenghua, Huang^1,2

Guangdong Institute of Materials and Processing, Guangzhou

510650, China^1

Guangdong Provincial Key Laboratory for Technology and Application of Metal Toughening, Guangzhou

510650, China^2

College of Materials Science and Engineering, Hunan University, Changsha

410082, China^3

关键词: Grain morphologies;    High quality;    Hot extrusion;    Implant devices;    Mg-Zn-Gd alloy;    Micro-structure evolutions;    Microstructure and properties;    Refined microstructure;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/182/1/012051/pdf
DOI  :  10.1088/1757-899X/182/1/012051

来源: IOP

【 摘 要 】

In order to manufacture the Mg-Zn-Gd alloy fine wires for the development of new biomedical Mg alloy implant devices, a hot extrusion and cold drawing process which is used to develop the Mg-Zn-Gd alloy fine wires were investigated. The results demonstrate that the Mg-Zn-Gd alloy has good formability. The microstructure and properties of the Mg-Zn-Gd alloy wires were studied by the observations of optical microscopy and scanning electron microscopy. The results show that the process is successfully developed to manufacture the high-quality wires with 3.00 mm diameter. The achievement of the high-quality Mg-Zn-Gd alloy wires is ascribed to the refined microstructure due to dynamic recrystallization during hot extrusion. Additionally, the grain morphology can play an important role in affecting the subsequent cold drawing performance.