M Malekan, SG Shabestari, R Gholamipour, SH Seyedein
Journal of Alloys and Compounds

Effect of the addition of a small amount of Ge on mechanical properties and fracture behavior of Cu50Zr43Al7 (at.%) bulk metallic glass were studied. The Cu50Zr43Al7 alloy has a surprising glass-forming ability (GFA), and the glassy rods up to 4 mm in diameter can be formed. Partial addition of Ge causes the crystalline phases precipitate in the glassy matrix of (Cu50Zr43Al7)100−x Gex (x = 0, 1, 2) rods with a diameter of 4 mm. In uniaxial compression, Cu50Zr43Al7 bulk metallic glass exhibit high strength of 1692 MPa and very limited plasticity of 0.05%. When Ge increases from 0 to 2 at.%, the strength decreases, but plastic strain increases about 2.5%. Fracture surface and shear bands of samples were investigated by scanning electron microscopy (SEM).

©  تمامی حقوق متعلق به سازمان پژوهش‌های علمی و صنعتی ایران می باشد.