TY - JOUR
T1 - Effect of Si addition on glass-forming ability and mechanical properties of Cu-Zr-Al bulk metallic glass
AU - Malekan, M.
AU - Shabestari, S. G.
AU - Zhang, W.
AU - Seyedein, S. H.
AU - Gholamipour, R.
AU - Makino, A.
AU - Inoue, A.
PY - 2010/10
Y1 - 2010/10
N2 - The effect of Si addition on the glass-forming ability (GFA) and mechanical properties of (Cu50Zr43Al7)100-xSix (x=0, 0.5, 1, 1.5 and 2at.%) alloys were investigated. The GFA of Cu50Zr43Al7 alloy is improved by addition of a small amount of Si, and the critical diameter for glass formation increases from 10mm for the alloy with x=0-12mm for the alloy with x=1 when prepared using copper mold casting. Different criteria are used to evaluate the influence of Si content on the GFA, and the possible mechanisms involved in the achievement of this GFA are also discussed. In the uniaxial compression, the bulk glassy alloys exhibit a limited plastic strain of less than 1%, but the compressive fracture strength and Young's modulus were obtained in high values of 1969-2129MPa and 101-144GPa, respectively. Fracture surface and shear bands of samples were studied by using scanning electron microscopy (SEM).
AB - The effect of Si addition on the glass-forming ability (GFA) and mechanical properties of (Cu50Zr43Al7)100-xSix (x=0, 0.5, 1, 1.5 and 2at.%) alloys were investigated. The GFA of Cu50Zr43Al7 alloy is improved by addition of a small amount of Si, and the critical diameter for glass formation increases from 10mm for the alloy with x=0-12mm for the alloy with x=1 when prepared using copper mold casting. Different criteria are used to evaluate the influence of Si content on the GFA, and the possible mechanisms involved in the achievement of this GFA are also discussed. In the uniaxial compression, the bulk glassy alloys exhibit a limited plastic strain of less than 1%, but the compressive fracture strength and Young's modulus were obtained in high values of 1969-2129MPa and 101-144GPa, respectively. Fracture surface and shear bands of samples were studied by using scanning electron microscopy (SEM).
KW - Bulk metallic glasses
KW - Copper-based alloy
KW - Glass-forming ability
KW - Mechanical properties
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U2 - 10.1016/j.msea.2010.07.067
DO - 10.1016/j.msea.2010.07.067
M3 - Article
AN - SCOPUS:77956775212
SN - 0921-5093
VL - 527
SP - 7192
EP - 7196
JO - Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing
JF - Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing
IS - 27-28
ER -