北京科技大学学报2011，Vol.33Issue(9)：1122-1126,5.
凝胶注模成形多孔Ti-7.5Mo合金的孔隙及力学性能
Porosity and mechanical properties of porous Ti-7.5Mo alloy for medical applications by gelcasting
摘要
Abstract
A porous titanium based alloy containing 7.5% molybdenum was prepared by gelcasting. The microstructure, total porosity and mechanical properties of the sintered porous Ti-7.5Mo alloy were investigated by using electron microscopy, X-ray diffraction, compression and bending tests. The effect of gelcasting parameters on the porosity and mechanical properties of the porous Ti- 7.5Mo alloy were studied. It is shown that the rheological behavior of the mixture metal slurry by adding 7.5% Mo powders improves in comparison with pure Ti powders. The open and closed three-dimensional pore morpbologies and the total porosity around 39. 15% to 45.97% can be achieved. The average pore size around 5 to 98 ~m and equiaxed cL crystal grains ＋ β phases were observed in the sintered alloy. In contrast to porous Ti by gelcasting available before, the porous Ti-7.5Mo alloy presents excellent properties, therefore being suited for medical applications.关键词
钛合金/多孔材料/凝胶注模/孔隙/力学性能Key words
titanium alloys/porous materials/gelcasting/porosity/mechanical properties分类
矿业与冶金引用本文复制引用
杨栋华,邵慧萍,樊联鹏,林涛,郭志猛..凝胶注模成形多孔Ti-7.5Mo合金的孔隙及力学性能[J].北京科技大学学报,2011,33(9):1122-1126,5.基金项目
国家自然科学基金资助项目 （）
国家教育部回国人员科研启动基金资助项目 （）
