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采用单辊快淬法制备了厚40μm,宽3 mm的四元Ti50Zr16Cu31Fe3非晶合金条带。使用扫描电镜(SEM)、X射线衍射仪(XRD)、差示扫描量热仪(DSC)分析了合金的组织、相结构以及热稳定性;同时将合金在模拟体液(SBF)中培养15 d,分析了合金的组织相容性,利用动态凝血时间以及溶血率分析非晶合金的血液相容性。结果表明,Ti50Zr16Cu31Fe3非晶条带具有较高的热稳定性,过冷液相区ΔTx可达80 K;在模拟体液(SBF)中浸泡15 d后,羟基磷灰石(HA)沉积在合金表面,厚度可以达到5μm,HA团絮状生长,且Ca/P值约为1.65,与人骨的Ca/P值1.67接近;溶血率低,仅为1.08%,表明合金具有良好的生物相容性。
A quaternary Ti50Zr16Cu31Fe3 amorphous alloy strip with a thickness of 40μm and a width of 3 mm was prepared by single roll rapid quenching method. The microstructure, phase structure and thermal stability of the alloy were analyzed by scanning electron microscopy (SEM), X-ray diffraction (XRD) and differential scanning calorimetry (DSC). Meanwhile, the alloy was incubated in simulated body fluid (SBF) , The histocompatibility of the alloy was analyzed, and the blood compatibility of the amorphous alloy was analyzed by dynamic coagulation time and hemolysis rate. The results show that the amorphous strip of Ti50Zr16Cu31Fe3 has high thermal stability and the ΔTx of the supercooled liquid region can reach 80 K. After soaking for 15 d in simulated body fluid (SBF), hydroxyapatite (HA) is deposited on the surface of the alloy , The thickness can reach 5μm, HA flocculent growth, and Ca / P value of about 1.65, and the human bone Ca / P value of 1.67 close; hemolysis rate is low, only 1.08%, indicating that the alloy has good biocompatibility.