Effects of Mn Content on Microstructure and Mechanical Properties of Porous Ti-Mo-Mn Alloys
Titanium powder,molybdenum powder and manganese powder were used as raw materials.The ammonium bicarbonate particles were used as pore-forming agent,and biomedical porous Ti-Mo-Mn alloys were prepared by powder metallurgy process.The effects of Mn content on the microstructure and mechanical properties of porous Ti-Mo-Mn alloys were investigated.The results show that with the increase of Mn content from 0wt%to 10wt%,the porosity of porous Ti-Mo-Mn alloys gradually decreases,the macropore size decreases slightly,the proportion of β-Ti phase increases relatively,and the elastic modulus and compressive strength increases accordingly.Porous Ti-Mo-Mn alloys with 7.5wt%Mo and 5wt%-10wt%Mn have a three-dimensional interconnected porous structure and good mechanical properties,which have the potential to be used as cortical bone defect repair materials.
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