TY - JOUR
T1 - Formation of bulk metallic glass in situ nanocomposite in (Cu 50Zr 43Al 7) 99Si 1 alloy
AU - Malekan, M.
AU - Shabestari, S. G.
AU - Zhang, W.
AU - Seyedein, S. H.
AU - Gholamipour, R.
AU - Yubuta, K.
AU - Makino, A.
AU - Inoue, A.
PY - 2012/9/15
Y1 - 2012/9/15
N2 - The structure and mechanical properties of the bulk (Cu 50Zr 43Al 7) 99Si 1 (at.%) rods with different diameters prepared by copper mold casting are investigated. It was found that the alloy with diameter of 2mm has a fully glassy structure. The nanocrystals with the sizes ranging from 2 to 10nm distributed in the glassy matrix for the alloy rod with a diameter of 3mm, and the successful synthesis of the (Cu 50Zr 43Al 7) 99Si 1 bulk metallic glass in situ nanocomposite was obtained. High compressive strength of 1969MPa and limited plastic strain of less than 1% were obtained for the 2mm (Cu 50Zr 43Al 7) 99Si 1 glassy rod. For the 3mm alloy rod, the compressive strength and plastic strain are 1835MPa and 10%, respectively. The CuZr nanocrystalline phase precipitated from the 3mm (Cu 50Zr 43Al 7) 99Si 1 rod shows evident plastic deformation, which contributes to the high ductility of the (Cu 50Zr 43Al 7) 99Si 1 bulk metallic glass in situ nanocomposites.
AB - The structure and mechanical properties of the bulk (Cu 50Zr 43Al 7) 99Si 1 (at.%) rods with different diameters prepared by copper mold casting are investigated. It was found that the alloy with diameter of 2mm has a fully glassy structure. The nanocrystals with the sizes ranging from 2 to 10nm distributed in the glassy matrix for the alloy rod with a diameter of 3mm, and the successful synthesis of the (Cu 50Zr 43Al 7) 99Si 1 bulk metallic glass in situ nanocomposite was obtained. High compressive strength of 1969MPa and limited plastic strain of less than 1% were obtained for the 2mm (Cu 50Zr 43Al 7) 99Si 1 glassy rod. For the 3mm alloy rod, the compressive strength and plastic strain are 1835MPa and 10%, respectively. The CuZr nanocrystalline phase precipitated from the 3mm (Cu 50Zr 43Al 7) 99Si 1 rod shows evident plastic deformation, which contributes to the high ductility of the (Cu 50Zr 43Al 7) 99Si 1 bulk metallic glass in situ nanocomposites.
KW - Bulk amorphous alloys
KW - Composites
KW - Nanostructured materials
KW - Shear bands
UR - http://www.scopus.com/inward/record.url?scp=84863779003&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84863779003&partnerID=8YFLogxK
U2 - 10.1016/j.msea.2012.05.066
DO - 10.1016/j.msea.2012.05.066
M3 - Article
AN - SCOPUS:84863779003
VL - 553
SP - 10
EP - 13
JO - Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing
JF - Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing
SN - 0921-5093
ER -