Ti₄₇Cu_38−xZr_7.5Fe_2.5Sn₂Si₁Ag₂Pd_x (x = 1, 2, 3, and 4 atomic percent, at. pct) bulk metallic glasses (BMGs) with potential for biomedical applications were fabricated by copper-mold casting. The Ti-based BMGs exhibited high glass-forming ability (GFA) with critical diameters of 4 to 5 mm and a supercooled liquid region over 50 K, though the high contents of Pd slightly decreased the GFA. The additions of 2 and 3 at. pct Pd benefited the improvement of plasticity, and the resultant BMGs showed the relatively low Young’s modulus of about 100 GPa, high compressive strengths of 2174 to 2340 MPa, and compressive plastic strain of around 4 pct. The addition of Pd also decreased the passive current density and increased the pitting potential of the Ti-based BMGs in the Hank’s solution, leading to the enhanced bio-corrosion resistance of the BMGs. Furthermore, the cell adhesion, viability, and proliferation behaviors revealed that the present Ti-based BMGs possess as good biocompatibility as that of the Ti-6Al-4V alloy. These results demonstrated the potential of the Ti-Cu-Zr-Fe-Sn-Si-Ag-Pd BMGs as biomedical materials.

Ti ₄₇ Cu _{38− x} Zr _7.5 Fe _2.5 Sn ₂ Si ₁ Ag ₂ Pd _x（x= at，1、2、3和4原子百分比。pct）具有生物医学应用潜力的大块金属玻璃（BMG）是通过铜模铸造制造的。钛基BMG表现出高的玻璃形成能力（GFA），临界直径为4至5 mm，并且过冷的液体区域超过50 K，尽管Pd的高含量会略微降低GFA。2和3 at的加法。pct Pd有益于可塑性的提高，所得BMG显示出相对较低的杨氏模量（约100 GPa），较高的抗压强度（2174至2340 MPa）和约4 pct的压缩塑性应变。Pd的添加还降低了Hank's溶液中Ti基BMG的无源电流密度并提高了其点蚀电位，从而提高了BMG的抗生物腐蚀性。此外，细胞粘附力，生存力，扩散行为表明，目前的Ti基BMG具有与Ti-6Al-4V合金一样好的生物相容性。这些结果证明了Ti-Cu-Zr-Fe-Sn-Si-Ag-Pd BMG作为生物医学材料的潜力。