[Kovove materialy - Metallic materials]
    Fri - April 12, 2024 - 22:57 No. of hits : 1740512 ISSN 1338-4252 (online) ISSN 0023-432X (printed)
© Institute of Materials and Machine Mechanics, Slovak Academy of Sciences, Bratislava, Slovak Republic

VOLUME 57 (2019), Issue 6

High-temperature deformation properties of CuCr0.6 alloy
RUSZ, S., SCHINDLER, I., NAVRÁTIL, H., KAWULOK, P., RODAK, K., KAWULOK, R., OPĚLA, P., ŠEVČÁK, V.
vol. 57 (2019), no. 6, pp. 407 - 414
DOI: 10.4149/km_2019_6_407

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.

Key words
copper alloy CuCr0.6, nil strength temperature, nil ductility temperature, flow stress curves, hot deformation activation energy

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Full title of this journal is bilingual: Kovové materiály - Metallic Materials.
The official abbreviation in accordance with JCR ISI is Kovove Mater.


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