Microstructure and mechanical properties of the as-cast Mg-Zn-Mn-Ca alloys

17th IUMRS International Conference in Asia

Fu, Junjian^1 ; Liu, Ke^1 ; Du, Wenbo^1 ; Wang, Zhaohui^1 ; Li, Shubo^1 ; Du, Xian^1

Beijing University of Technology, Beijing

100124, China^1

关键词: As-cast;    Grain size;    Medical implants;    Microstructure and mechanical properties;    Optical microscopes;    Secondary phase;    Secondary phasis;    Solution treatments;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/182/1/012053/pdf
DOI  :  10.1088/1757-899X/182/1/012053

来源: IOP

【 摘 要 】

As-cast Mg-Zn-Mn-Ca alloys are the candidates for medical implants. The microstructure and mechanical properties of the as-cast Mg-Zn-Mn-Ca alloys were investigated by using optical microscope (OM), X-ray diffraction (XRD) and scanning electron microscope (SEM). The results suggested that the addition of Zn significantly refined the grain size of the as-cast magnesium alloys, and hence improved the mechanical properties of the alloys. Meanwhile, the secondary phase mainly distributed in the grain boundaries and the solution treatment made parts of secondary phases dissolved into the matrix, resulting in enhancement of the plasticity of the as-cast Mg-Zn-Mn-Ca alloy.