孔隙率对Ti84Mo16合金多孔材料力学性能影响研究  

Research on the Influence for Mechanical Properties of Ti84 Mo16 Porous alloy by Porosity

作　　者：赵明威[1] Cui'E.Wen 

机构地区：[1]陕西工业职业技术学院教务处,陕西咸阳712000 [2]澳大利亚Deakin大学材料与纤维研发中心,Victoria3217,Australia

出　　处：《陕西工业职业技术学院学报》2014年第4期1-4,共4页Journal of Shaanxi Polytechnic Institute

基　　金：陕西省教育厅自然科学基金资助项目（09JK338）.

摘　　要：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，用碳酸氰氨作为介质掺杂制备Ti84Mo16合金多孔材料，文章以孔隙率对Ti84Mo16合金多孔材料力学性能影响作为研究对象，探讨不同孔隙率对Ti84Mo16合金多孔材料力学性能的影响规律。实验发现，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LornaJ．Gibson及MichaelF．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TTi84Mo16合金多孔材料具有较好塑形。Materials targeting for replacing hard tissue, require high strength and low elastic modulus. In this paper by utilizing the powder metallurgy preparation technique, Ti84Mo16 binary composite powders were prepared. After two hours and five hour ball grindings, Ti84Mo16 binary composite powders were doped with various content ammonia bicarbonate, then the mixture powders were compressed forming; Ti84Mo16 porous alloy sintering progress was cartied out at 1200℃ for BM2h and BM 5h. Ammonia bicarbonate medium method was applied to control the porosity of the Ti84Mo16Alloy into five different values of low, median and high porosity. Results showed, with increasing ammonia bicarbonate content Ti84Mo16 porous alloy improved its porosity, and its yield strength and Plastic deformation decreased rapidly.

关 键 词：Ti84Mo16合金多孔材料 碳酸氢氨 孔隙率 力学性能 

分 类 号：TB34[一般工业技术—材料科学与工程]