Abstract
The effect of Ag addition on the glass forming ability (GFA) and mechanical properties of (Zr 0.62Cu 0.23Fe 0.05Al 0.10) 100− x Ag x ( x = 0, 1, 3, 5, 7) alloys were investigated by X-ray diffractometry, differential scanning calorimetry and compression testing. Their GFA and plasticity are found to increase simultaneously with increasing Ag content up to 3 at.%, but beyond this range, they both decrease. The (Zr 0.62Cu 0.23Fe 0.05Al 0.10) 97Ag 3 alloy exhibits the highest GFA and largest plasticity, with a critical diameter of 10 mm and a fracture plastic strain of 5.2%. The reasons for the enhanced GFA and plasticity are discussed by considering the positive heat of mixing between Ag, Cu and Fe. The Ni-free (Zr 0.62Cu 0.23Fe 0.05Al 0.10) 97Ag 3 alloy with high GFA, reasonably good plasticity and a low Young's modulus of approximate 68 GPa is a promising candidate for biomedical applications.
Published Version
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