引用本文:
范珺, 邱鑫, 田政, 张德平, 孙伟, 李扬德, 李卫荣, 孟健. 生物材料用Mg-Y-Zn-Zr合金的微观结构及体外降解行为[J]. 应用化学,
2012, 29(12): 1452-1456.
doi:
10.3724/SP.J.1095.2012.20436
Citation: FAN Jun, QIU Xin, TIAN Zheng, ZHANG Deping, SUN Wei, LI Yangde, LI Weirong, MENG Jian. Microstructure and in vitro Degradation Resistance of Mg-Y-Zn-Zr Alloys as Biomaterials[J]. Chinese Journal of Applied Chemistry, 2012, 29(12): 1452-1456. doi: 10.3724/SP.J.1095.2012.20436
Citation: FAN Jun, QIU Xin, TIAN Zheng, ZHANG Deping, SUN Wei, LI Yangde, LI Weirong, MENG Jian. Microstructure and in vitro Degradation Resistance of Mg-Y-Zn-Zr Alloys as Biomaterials[J]. Chinese Journal of Applied Chemistry, 2012, 29(12): 1452-1456. doi: 10.3724/SP.J.1095.2012.20436
生物材料用Mg-Y-Zn-Zr合金的微观结构及体外降解行为
English
Microstructure and in vitro Degradation Resistance of Mg-Y-Zn-Zr Alloys as Biomaterials
Abstract:
Mg-1.5Y-1.2Zn-0.44Zr alloys by adding small amounts(mass fraction) of yttrium(1.5%),zinc(1.2%) and zirconium(0.35%) into pure magnesium were developed as degradable metallic biomaterials.Also,solution treatment and hot extrusion were used as the methods for fabrication.An investigation of microstructure and in vitro degradation responses were made.The alloys are mainly composed of the matrix α-Mg phases and the Mg12ZnY secondary phases.The grains of the as-cast alloys were significantly refined by hot extrusion.The biodegradation resistance of the as-cast alloys is obviously improved by hot extrusion via microstructure refinement.The results of in vitro degradation responses in the simulated body fluid(SBF) indicate that the product of degradation precipitated on the alloy's surface is the phosphate which contains Ca and Mg elements.
-
Key words:
- biomaterials
- / Mg-Y-Zn-Zr
- / microstructure
- / in vitro degradation
-
-
扫一扫看文章
计量
- PDF下载量: 0
- 文章访问数: 1184
- HTML全文浏览量: 86
下载:
