Microstructure and Mechanical Properties of Backward-extruded Mg-ZnxCa Biomaterials

摘要：

　　The Mg-1.0Zn-xCa (x=0.2,0.5,0.8,1 wt.%) alloys were prepared by zone solidification and backward extrusion technology.The microstructure and mechanical properties of backwardextruded Mg-1.0Zn-xCa alloys were investigated.The results showed that these backward-extruded Mg-1.0Zn-xCa alloys were mainly composed of equi-axed pentagon-shaped grains and some Mg0.9Zn0.03 precipitates.The tensile and compressive strengths of backward-extruded Mg-1.0ZnxCa alloys were greatly improved.The improved mechanical properties are mostly attributed to fine grain strengthening,solid solution strengthening and precipitate strengthening.The results demonstrated that the micro alloying of Ca element was one of effective method to improve the mechanical properties of Mg-1.0Zn based biomaterials.

关键词： Mg-1.0Zn-xCa alloys Backward extrusion

作者: Xuejun Li Hui Li Shuangshuang Zhao Ning Ma Qiuming Penge

作者单位: State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao, 066004, P.R China

会议类型: 国际会议

会议名称: the Chinese Materials Congress 2012(2012年中国材料大会(CMC2012))

会议地点: 太原

会议语种:英文

页码: 426-430

在线出版日期: 2012-07-13（万方平台首次上网日期，不代表论文的发表时间）