摘要
为了开发适合生物医学应用的可降解镁合金,采用真空铜模铸造法制备了直径为6 mm的Mg_(66)Zn_(30-x)Ca_(4)Cu_(x)(x=0,0.5,1.0,1.5,2.0)系列梯度合金。采用X射线衍射仪(XRD)、(DSC)、扫描电镜(SEM)分别对样品的相结构、热稳定性和形貌进行了表征;同时,采用万能拉伸试验机和电化学工作站分别对样品的压缩性能和耐腐蚀性能进行了测试。结果表明:直径为6 mm的棒状样品的表面为非晶态,内部为晶态;随着Cu含量的增加压缩断裂强度逐渐提高,耐腐蚀性能逐渐降低。
In order to develop the biodegradable magnesium alloys suitable for biomedical applications,Mg_(66)Zn_(30-x)Ca_(4)Cu_(x)(x=0,0.5,1.0,1.5,2.0)gradient alloys rod samples of 6mm were prepared by a copper mold injection method.The phase structure,thermal stability and morphology of the samples were characterized by X-ray diffraction(XRD),DSC and scanning electron microscopy(SEM),respectively.The compressive properties and corrosion resistance of the samples were tested by universal tensile testing machine and electrochemical workstation.The results show that the rod samples ofφ=6 mm is amorphous on the surface and crystalline on the inside,with the increase of Cu content,the compressive fracture strength increases gradually and the corrosion resistance decreases gradually.
作者
胡勇
徐赛飞
王彤
杨雯
田晋松
薛凯江
HU Yong;XU Sai-fei;WANG Tong;YANG Wen;TIAN Jin-song;XUE Kai-jiang(School of Materials Science and Engineering,Taiyuan University of Science and Technology,Taiyuan 030024,China;Shanxi Key Laboratory of Metallic Materials Forming Theory and Technology,Taiyuan 030024,China;Shanxi BaDA Magnesium Co.,Ltd.,Shanxi Yuncheng 043800,China)
出处
《太原科技大学学报》
2023年第1期40-45,共6页
Journal of Taiyuan University of Science and Technology
基金
国家自然科学基金(51871158)
山西省自然科学基金(201801D121084,202103021224279)。
关键词
镁合金
显微组织
力学性能
耐腐蚀性能
magnesium alloy
microstructure
mechanical properties
corrosion resistance
