TY - JOUR
T1 - Mechanical properties and corrosion resistance of a new Zr56Ni20Al15Nb4Cu5 bulk metallic glass with a diameter up to 25 mm
AU - Li, Yanhui
AU - Zhang, Wei
AU - Qin, Fengxiang
AU - Makino, Akihiro
N1 - Funding Information:
This work is financially supported by the Natural Science Foundation of China (NSFC) , (No. 51201024 ) and “the Fundamental Research Funds for the Central Universities” of China (No. DUT11RC(3)70 ).
Publisher Copyright:
© 2014 Elsevier B.V. All rights reserved.
PY - 2015/1/15
Y1 - 2015/1/15
N2 - The glass-forming ability (GFA), mechanical properties and corrosion resistance of Zr56Ni25-xAl15Nb4Cux (x = 0-15) bulk metallic glasses (BMGs) were investigated. Substitution of 5 at.% Cu for Ni greatly increases the GFA of the base alloy by lowering the liquidus temperature, while further addition of 10-15 at.% Cu decreases the GFA. A new Zr56Ni20Al15Nb4Cu5 BMG with a largest critical diameter up to 25 mm can be obtained by copper mold casting method. The BMG with best GFA possesses good mechanical properties, i.e., high strength of 1915 MPa, large plastic strain of 5.5%, together with Young's modulus of 100 GPa. In addition, the BMG exhibits excellent corrosion resistance in H2SO4, HCl, and NaCl solutions, respectively, as indicated by the nobler corrosion potential and pitting potential.
AB - The glass-forming ability (GFA), mechanical properties and corrosion resistance of Zr56Ni25-xAl15Nb4Cux (x = 0-15) bulk metallic glasses (BMGs) were investigated. Substitution of 5 at.% Cu for Ni greatly increases the GFA of the base alloy by lowering the liquidus temperature, while further addition of 10-15 at.% Cu decreases the GFA. A new Zr56Ni20Al15Nb4Cu5 BMG with a largest critical diameter up to 25 mm can be obtained by copper mold casting method. The BMG with best GFA possesses good mechanical properties, i.e., high strength of 1915 MPa, large plastic strain of 5.5%, together with Young's modulus of 100 GPa. In addition, the BMG exhibits excellent corrosion resistance in H2SO4, HCl, and NaCl solutions, respectively, as indicated by the nobler corrosion potential and pitting potential.
KW - Bulk metallic glasses
KW - Corrosion resistance
KW - Glass-forming ability
KW - Mechanical properties
KW - Zr-based alloys
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U2 - 10.1016/j.jallcom.2013.11.111
DO - 10.1016/j.jallcom.2013.11.111
M3 - Article
AN - SCOPUS:84907520717
VL - 615
SP - S71-S74
JO - Journal of Alloys and Compounds
JF - Journal of Alloys and Compounds
SN - 0925-8388
IS - S1
ER -