摘要
基于硬组织置换材料应用目的，实验探索制备新一代生物医用Ti-7．5Nb-4Mo-2．5Sn形状记忆多孔合金，并深入研究孔隙率对Ti-7．5Nb-4Mo-2．5Sn形状记忆多孔合金微观组织结构、力学性能及超弹性能的影响规律。实验结果表明：随着孔隙率逐渐增大，孔径逐渐增大且逐步连通，孔隙表征也更加不规则；孔隙率的增加会使合金的弹性模量、屈服强度和压缩强度逐渐下降；不同孔隙率Ti-7．5Nb-4Mo-2．5Sn多孔合金均具备超弹性能，但空隙率的增加会使合金超弹性能下降。
This experiment, based on hard tissue replacement materials,studied the micro -structure , mechanical properties and super elastic properties of Ti - 7.5Nb - 4Mo - 2.5Sn shape memory porous alloy, a new medicine material. The result showed that Ti -7.5Nb -4Mo -2.5Sn porous alloy has super elasticity properties. Along with the porosity and pore size increasing gradually, holes of Ti -7.5Nb -4Mo -2.5Sn porous alloy connect with each other, and the characterization of pore are more irregular; the increasing porous makes the elastic modulus, yield strength and compressive strength gradually decrease; Ti -7.5 Nb -4Mo -2.5 Sn porous alloy with different porosi- ty has super elastic properties, but the increase of the void fraction can decrease the elasticity of the alloy.
出处
《陕西工业职业技术学院学报》
2015年第4期1-5,13,共6页
Journal of Shaanxi Polytechnic Institute
基金
陕西省教育厅自然科学基金资助项目（编号：09JK338）
国家留学基金及澳大利亚Deakin大学项目基金支持.
关键词
超弹性能
形状记忆性能
多孔合金
孔隙率
super elasticity properties
shape memory performance
porous alloy
Porosity
