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基于粉末冶金制备工艺,以降低生物医用Ti84Mo16合金的弹性模量为目标,用碳酸氢氨作为介质掺杂粉体制备Ti84Mo16合金多孔材料。探讨不同孔隙率对Ti84Mo16合金多孔材料力学性能的影响规律。结果表明,孔隙率对Ti84Mo16合金多孔材料力学性能有着明显的影响,随着孔隙率增加,Ti84Mo16合金多孔材料力学强度呈几何指数下降,孔隙率对Ti84Mo16合金多孔材料力学性能影响规律满足Lorna J.Gibson及Michael F.Ashby的经典理论。同时2小时球磨Ti84Mo16合金多孔材料具有较高强度,5小时球磨Ti84Mo16合金多孔材料具有较好塑形。
Based on the preparation process of powder metallurgy, the Ti84Mo16 alloy porous material was prepared by reducing the elastic modulus of biomedical Ti84Mo16 alloy with ammonium bicarbonate as the medium doped powder. The effects of different porosity on the mechanical properties of Ti84Mo16 alloy porous materials were investigated. The results show that the porosity has a significant effect on the mechanical properties of Ti84Mo16 alloy porous materials. With the increase of porosity, the mechanical strength of Ti84Mo16 alloy porous material decreases geometrically, and the influence of porosity on the mechanical properties of Ti84Mo16 alloy porous materials satisfies Lorna J. Gibson And Michael F. Ashby’s classic theory. At the same time, the Ti84Mo16 alloy porous material with two hours of ball milling has higher strength, and the Ti84Mo16 alloy porous material with five hours of ball milling has a better shape.