Journal
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
Volume 570, Issue -, Pages 87-91Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.msea.2013.01.059
Keywords
Cu-Cr-Zr alloy; Dynamic recrystallization; Thermal deformation activation energy; Constitutive equation; Processing map
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Funding
- National Natural Science Foundation of China [50571035]
- Program for Innovative Research Team in Science and Technology in University of Henan Province [2012IRTSTHN008]
- Scientific Research Innovation Fund of Henan University of Science and Technology [2010CZ0008]
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Hot deformation tests of the Cu-0.6Cr-0.03Zr alloy were performed on a Gleeble 1500 system with various strain rates at different deformation temperatures. The flow stress was employed to analyze the effect of work hardening, dynamic precipitation coarsening and dynamic recrystallization on deformation behaviors. The microstructures evolution was observed, after which the thermal deformation activation energy was calculated as 572.053 kJ/mol and constitutive equation was established. The processing map was established to obtain the optimum domain occurred at 770-800 degrees C and 0.01-0.05 s(-1) for hot working. (c) 2013 Elsevier B.V. All rights reserved.
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