可降解生物医用Zn-1Al合金的制备及性能研究  

Fabrication and Investigation on Properties of Degradable Zn-1Al Alloy for Biomedical Applications

作　　者：赵立臣[1] 宋玉婷 张喆[1] 王新[1] 王铁宝[1] 崔春翔[1] ZHAO Lichen;SONG Yuting;ZHANG Zhe;WANG Xin;WANG Tiebao;CUI Chunxiang(School of Materials Science and Engineering,Hebei University of Technology,Tianjin 300130)

机构地区：[1]河北工业大学材料科学与工程学院,天津300130

出　　处：《材料导报》2018年第7期1192-1196,共5页Materials Reports

基　　金：河北省高等学校科学技术研究项目(QN2014032);河北省自然科学基金(E2016202332)

摘　　要：以商业铸态纯锌和纯铝为原料,制备得到Zn-1Al铸态合金。利用光学显微镜和扫描电子显微镜观察Zn-1Al铸态合金的显微组织,利用万能试验机测定Zn-1Al铸态合金的压缩力学性能,利用模拟体液浸泡实验表征Zn-1Al铸态合金的生物降解性能和诱导Ca-P沉积能力。结果表明,向Zn中加入1%(质量分数)的合金元素Al后,铸态纯锌的显微组织明显细化,且Zn-1Al合金的压缩力学性能也较铸态纯锌明显提高。模拟体液浸泡实验结果表明铸态Zn-1Al合金在浸泡过程中降解速率与铸态纯锌相比未出现明显差别,但Zn-1Al合金能更有效地诱导Ca-P沉积。As-cast Zn-1Al alloy was fabricated with commercially pure zinc and pure aluminum as raw materials.Microstructure of the as-cast Zn-1Al alloy was observed by optical microscopy and scanning electron microscopy,and the compressive mechanical properties were measured by a universal test machine.The biodegradable property and the ability to induce Ca-P precipitation of the as-cast Zn-1Al alloy were characterized by immersion tests in simulated body fluid.The results show that the microstructures of the as-cast Zn-1Al alloy were obviously refined by adding 1wt%Al element.In addition,the compressive mechanical properties of the as-cast Zn-1Al alloy were also enhanced compared with that of as-cast pure zinc.The immersion tests in simulated body fluid suggest that the as-cast Zn-1Al alloy has a similar degradable rate compared to as-cast pure Zn.However,Zn-1Al alloy can more efficiently induce Ca-P precipitation during immersion tests.

关 键 词：Zn-1Al合金 力学性能 Ca-P沉积 生物医用 可降解 

分 类 号：TG146.1[一般工业技术—材料科学与工程] R318.08[金属学及工艺—金属材料]