TY - JOUR
T1 - Deformation and strain rate sensitivity of a Zr-Cu-Fe-Al metallic glass
AU - González, S.
AU - Xie, G. Q.
AU - Louzguine-Luzgin, D. V.
AU - Perepezko, J. H.
AU - Inoue, A.
N1 - Funding Information:
This work was partly supported by Grant-In-Aid on “Research and Development Project on Advanced Materials Development and Integration of Novel Structured Metallic and Inorganic Materials” and by Grant-in-Aid ddD in “Priority Area on Science and Technology of Microwave-Induced, thermally Non-Equilibrium Reaction Field” N: 18070001 from Ministry of Education, Culture, Sports, Science and Technology, Japan.
PY - 2011/4/15
Y1 - 2011/4/15
N2 - The deformation behaviour of Zr65Cu20Fe5Al10 bulk metallic glass has been studied at room temperature under uniaxial compression conditions at the strain rate of 5×10-4s-1 and performing jump tests for the strain rates (SR) ranging between 5×10-6s-1 and 5×10-2s-1. The alloy always shows the formation of shear bands and exhibits serrated flow. In the SR range of 5×10-6 to 5×10-3s-1 absence of strain rate sensitivity within the experimental error is observed. However, when the SR changes from 5×10-3s-1 to 5×10-2s-1 the alloy exhibits a negative strain rate sensitivity of -0.0026. The number of shear bands on the side view appears to be correlated with the range of stress softening from the maximum stress to the stress at which the sample fails.
AB - The deformation behaviour of Zr65Cu20Fe5Al10 bulk metallic glass has been studied at room temperature under uniaxial compression conditions at the strain rate of 5×10-4s-1 and performing jump tests for the strain rates (SR) ranging between 5×10-6s-1 and 5×10-2s-1. The alloy always shows the formation of shear bands and exhibits serrated flow. In the SR range of 5×10-6 to 5×10-3s-1 absence of strain rate sensitivity within the experimental error is observed. However, when the SR changes from 5×10-3s-1 to 5×10-2s-1 the alloy exhibits a negative strain rate sensitivity of -0.0026. The number of shear bands on the side view appears to be correlated with the range of stress softening from the maximum stress to the stress at which the sample fails.
KW - Bulk amorphous alloys
KW - Plasticity
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U2 - 10.1016/j.msea.2011.01.049
DO - 10.1016/j.msea.2011.01.049
M3 - Article
AN - SCOPUS:79951677687
VL - 528
SP - 3506
EP - 3512
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
IS - 9
ER -