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The study of the technology parameters on the superplasticity of the new Al–Zn–Mg–Cu–Ni–Zr base alloy
Author(s) -
Mikhaylovskaya A. V.,
Kotov A. D.,
Levchenko V. S.,
Portnoy V. K.
Publication year - 2014
Publication title -
materialwissenschaft und werkstofftechnik
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.285
H-Index - 38
eISSN - 1521-4052
pISSN - 0933-5137
DOI - 10.1002/mawe.201400287
Subject(s) - superplasticity , materials science , metallurgy , alloy , flow stress , elongation , casting , strain rate , aluminium , deformation (meteorology) , base (topology) , composite material , ultimate tensile strength , mathematical analysis , mathematics
Al–Zn–Mg–Cu aluminum alloy contain 0.3% Zr and 4% Ni was processed by traditional hot and cold rolling with a total reduction from 0 to 80%. The relationship between superplastic behavior and reduction of cold deformation and casting cooling rate was analyzed. It is shown that the decrease in the reduction of cold rolling do not significantly influence on flow stress and elongation. Decrease in casting cooling rate leads to insignificantly decrease in superplastic indicators. Alloy exhibits advanced superplasticity: the elongation of 400–800% at the strain rates of (5 × 10 –3 –1 × 10 –1 ) s –1 .