| abstract |
The invention relates to the technical field of medical materials, in particular to a biomedical porous magnesium alloy and a preparation method thereof. The biomedical porous magnesium alloy is composed of the following components in terms of weight percentage: Zn: 2-5wt.%; Y: 0.5-1wt.%; Ce: 0.05-0.85wt.%; Sr: 0.005-0.02wt.%; Ca: 1.5-2.5wt.%; Master alloy, magnesium yttrium master alloy, magnesium cerium master alloy, magnesium strontium master alloy, magnesium calcium master alloy are raw materials, and the ingredients are calculated according to the weight percentage of the above-mentioned porous magnesium alloy, and put into a crucible; Pores are formed, and finally formed, a biomedical porous magnesium alloy is obtained. The tensile strength and yield strength of the biomedical porous magnesium alloy prepared by the invention both reach more than 390 MPa, and the cost is low, which is suitable for use as a material for bone tissue regeneration, and solves the problem of high preparation cost and low mechanical properties of the existing magnesium alloy. The problem. |