Home FOR AUTHORS Kovove Materialy-Metallic Materials 2019 Kovove Materialy-Metallic Materials Vol. 57 (2019), no. 6, pp.407–414

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Kovove Materialy-Metallic Materials Vol. 57 (2019), no. 6, pp.407–414

Title: High-temperature deformation properties of CuCr0.6 alloy
Author: S. Rusz, I. Schindler, H. Navrátil, P. Kawulok, K. Rodak, R. Kawulok, P. Opela, V. Ševčák

Abstract: The submitted paper aimed to investigate the hot deformation behavior of CuCr0.6 alloy. Nil strength temperature of 1349 K and nil ductility temperature of 1313 K have been experimentally determined. Formability is monotonously increased with the decrease of forming temperature in the temperature range from 923 K to approx. 1273 K. The flow stress curves were obtained in the forming temperature interval of 923–1223 K and at a strain rate of 0.1–10 s–1. After their analysis, the hot deformation activation energy of 340 kJ mol–1 was calculated for peak stress and 393 kJ mol–1 for steady state. This proves that the value of the activation energy depends upon a strain size.

Keywords: copper alloy CuCr0.6, nil strength temperature, nil ductility temperature, flow stress curves, hot deformation activation energy
Published online: 20-Nov-2019
Year: 2019, Volume: 57, Issue: 6 Page From: 407, Page To: 414

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