尾-type Ti-10Mo-1.25Si-xZr biomaterials for applications in hard tissue replacements
- 作者：Yongzhong Zhan ; zyzmatres@yahoo.com.cn ; Chunliu Li ; Wenping Jiang
- 关键词：Ti-Mo-Si-Zr alloys ; 尾-type ; Biomaterials ; Microstructure ; Mechanical properties
- 刊名：Materials Science and Engineering ; C
- 出版年：2012
- 期刊代码：63_09284931
- 类别：ms
- 出版时间：1 August, 2012
- 卷：32
- 期：6
- 页码：1664-1668
- 文件大小：879 K
摘要
In order to develop new 尾-type Ti-based biochemical materials, a series of Ti-10Mo-1.25Si-xZr (x = 4-13) alloys were designed and prepared using vacuum arc melting method. Phase analysis and microstructural observation showed that all the as cast samples consisted of equiaxed 尾-Ti phase. With the increase of Zr content, the structure of grain boundary changed from semi-continuous network to denser granular, and the microstructure was refined. The solid solution effect of the 尾-phase stabilization elements (i.e. Mo, Zr and Si) predominantly determined the mechanical properties. These 尾-type Ti-10Mo-1.25Si-xZr biomaterials exhibited a good combination of high compressive strength, high yield stress, good plasticity, as well as rather low Young's modulus (in the range of 23.086 GPa-32.623 GPa), which may offer potential advantages in the applications in hard tissue replacements (HTRs).