Preparation and compressive properties of low-cost medical porous Ti-5Mn alloys
MAI Ping1，ZHAO Chaoyong2
（1. College of Basic Medical Sciences, Panzhihua University, Panzhihua 617000, China; 2. College of Vanadium
and Titanium, Panzhihua University，Panzhihua 617000, China）
Abstract：Low-cost medical porous Ti-5Mn alloys were prepared by powder metallurgy process using ammonium
bicarbonate（NH
4HCO3）particles with different addition contents (10%~40%) as space holder agent, and its micro‐
structure 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 increas‐
es, 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 mod‐
ulus 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 parti‐
cles in this study can be used as a candidate materials for repairing cortical bone defects.
2023, Vol. 33 
