Dynamic recrystallization behavior of upward continuous casting Cu-0.19Cr-0.1Ag alloy
MATERIALS RESEARCH EXPRESS(2019)
Abstract
The flow and dynamic recrystallization (DRX) behaviour of the Cu-0.19Cr-0.1Ag alloy was systematically investigated by hot compression tests using a thermal simulation testing machine. The results showed that dynamic recovery and partial dynamic recrystallization occured at the strain rate of 10 s(-1) in the entire temperature range tested, and at strain rates varying between 0.01 s(-1) and 10 s(-1) below 850 degrees C. Complete dynamic recrystallization occured when the deformation temperature was higher than 900 degrees C. The maximum softening rate strain (epsilon*) and the variable Z were introduced in the DRX kinetic model developed for the Cu-0.19Cr-0.1Ag alloy, obtaining an Avrami constant of 1.88.
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Key words
Cu-0.19Cr-0.1Ag alloy,critical strain,dynamic recrystallization kinetic model
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