论文部分内容阅读
用SEM、图像分析和XRD等研究了元素粉末烧结制备多孔NiTi合金的微观结构、孔隙度、相组成和超弹性能 .结果表明 :用元素粉末烧结方法制备多孔NiTi合金是可行的 ;实验所得合金的孔隙度在 36 .0 %～ 41 .5 %之间 ,孔隙相互连通、呈网状分布 . 1 2 2 3K 9h烧结合金的XRD分析未发现游离态Ni.同时 ,多孔NiTi合金具有优良的超弹性能 .粉末烧结多孔NiTi合金在一定程度上满足了生物医用材料的医学使用条件 .
The microstructure, porosity, phase composition and superelastic properties of porous NiTi alloy prepared by elemental powder sintering were studied by SEM, image analysis and XRD.The results show that it is feasible to prepare porous NiTi alloy by elemental powder sintering method. The obtained alloy Porosity between 36.0% and 41.5%, the pores are interconnected, and are distributed in the form of network.XRD analysis of 1 2 2 3K 9h sintered alloy shows no free Ni.At the same time, the porous NiTi alloy has excellent super elasticity Can. Sintered porous NiTi alloy powder to some extent to meet the biomedical medical conditions of use.