低成本医用多孔Ti-5Mn合金的制备及其压缩性能  

Preparation and compressive properties of low-cost medical porous Ti-5Mn alloys

作　　者：麦萍 赵朝勇 MAI Ping;ZHAO Chaoyong(College of Basic Medical Sciences,Panzhihua University,Panzhihua 617000,China;CollegeofVanadium and Titanium,Panzhihua University,Panzhihua 617000,China)

机构地区：[1]攀枝花学院基础医学院,四川攀枝花617000 [2]攀枝花学院钒钛学院,四川攀枝花617000

出　　处：《粉末冶金工业》2023年第6期63-67,73,共6页Powder Metallurgy Industry

基　　金：四川省科技计划重点研发项目(2017GZ0417);攀枝花学院校级科研项目(2021YB003);攀枝花学院博士科研启动经费项目。

摘　　要：以不同添加量的碳酸氢铵(NH_(4)HCO_(3))颗粒(10%~40%)为占位剂,使用粉末冶金工艺制备出低成本医用多孔Ti-5Mn合金,并检测其微观结构和力学性能。结果表明,不同碳酸氢铵添加量制备出的多孔Ti-5Mn合金均由α-Ti相和β-Ti相组成,其添加量对合金的物相无影响。当碳酸氢铵添加量增加时,制备出的多孔Ti-5Mn合金的孔隙率增加,密度相应减小,大孔平均孔径变大并逐渐变得三维连通,而其弹性模量和抗压强度逐渐减小。实验使用不同添加量的碳酸氢铵颗粒制备出的具有合适孔结构和力学性能的低成本医用多孔Ti-5Mn合金可作为皮质骨缺损修复的候选材料。Low-cost medical porous Ti-5Mn alloys were prepared by powder metallurgy process using ammonium bicarbonate(NH_4HCO_(3))particles with different addition contents(10%~40%) as space holder agent, and its microstructure and mechanical properties were examined. The results show that the porous Ti-5Mn alloys prepared with different ammonium bicarbonate addition contents are all composed of α-Ti phase and β-Ti phase, and its addition has no effect on the phase composition of the alloy. When the addition contents of ammonium bicarbonate increases, the porosity of the prepared porous Ti-5Mn alloy increases, the density decreases correspondingly, the average pore size of the macropore increases and gradually become three-dimensional interconnected, while its elastic modulus and compressive strength decreases gradually. Low-cost medical porous Ti-5Mn alloy with appropriate pore structure and mechanical properties prepared by adding different addition contents of ammonium bicarbonate particles in this study can be used as a candidate materials for repairing cortical bone defects.

关 键 词：多孔Ti-Mn合金 低成本钛合金 粉末冶金 空间占位法 力学性能 

分 类 号：TG146.23[一般工业技术—材料科学与工程] R318.08[金属学及工艺—金属材料]