Abstract
The effect of Ag addition on the glass forming ability (GFA) and mechanical properties of (Zr0.62Cu0.23Fe0.05Al0.10)100-xAgx(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 (Zr0.62Cu0.23Fe0.05Al0.10)97Ag3alloy 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 (Zr0.62Cu0.23Fe0.05Al0.10)97Ag3alloy with high GFA, reasonably good plasticity and a low Young's modulus of approximate 68 GPa is a promising candidate for biomedical applications.
Original language | English |
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Pages (from-to) | 152-156 |
Number of pages | 5 |
Journal | Journal of Alloys and Compounds |
Volume | 487 |
Issue number | 1-2 |
DOIs | |
Publication status | Published - 13 Nov 2009 |
Keywords
- Bulk metallic glass
- Glass forming ability
- Heat of mixing
- Plasticity
ASJC Scopus subject areas
- Mechanics of Materials
- Mechanical Engineering
- Metals and Alloys
- Materials Chemistry