Effects of HE and ECAP processes on changes in microstructure and mechanical properties in copper, iron and zinc

• Autorzy: Kulczyk Mariusz , Skorupska Monika , Skiba Jacek , Przybysz Sylwia , Smalc-Koziorowska Julita

Identyfikatory

DOI

10.24425/bpasts.2023.145563

• Języki publikacji: EN

Abstrakty

EN

The research presented in this paper concerns the influence of the rate of plastic deformation generated directly in the processes of severe plastic deformations on the microstructure and properties of three metals: copper, iron and zinc. The equal channel angular pressing (ECAP) method was used, and it was performed at a low plastic deformation rate of ∼ 0.04 s−1. The high plastic strain rate was obtained using the hydrostatic extrusion (HE) method with the deformation rate at the level of ∼ 170 s−1. For all three tested materials different characteristic effects were demonstrated at the applied deformation rates. The smallest differences in the mechanical properties were observed in copper, despite the dynamic recrystallization processes that occurred in the HE process. In Armco iron samples, dynamic recovery processes in the range of high plastic deformation rates resulted in lower mechanical properties. The most significant effects were obtained for pure zinc, where, regardless of the method used, the microstructure was clearly transformed into bimodal after the ECAP process, and homogenized and refined after the HE process. After the HE process, the material was transformed from a brittle state to a plastic state and the highest mechanical properties were obtained.

Słowa kluczowe

EN

hydrostatic extrusion; equal channel angular pressing; rate of plastic deformation; copper; iron; zinc

PL

wytłaczanie hydrostatyczne; prasowanie kątowe równokanałowe; szybkość odkształcenia plastycznego; miedź; żelazo; cynk

• Wydawca: Polska Akademia Nauk, Wydział IV Nauk Technicznych
• Czasopismo: Bulletin of the Polish Academy of Sciences. Technical Sciences
• Rocznik: 2023
• Tom: Vol. 71, nr 3
• Strony: art. no. e145563
• Opis fizyczny: Bibliogr. 27 poz., rys.

Twórcy

autor

Kulczyk Mariusz

• Institute of High Pressure Physics of the Polish Academy of Sciences UNIPRESS, Sokołowska 29/37, 01-142 Warsaw, Poland

• https://orcid.org/0000-0002-6892-8070

autor

Skorupska Monika

• Institute of High Pressure Physics of the Polish Academy of Sciences UNIPRESS, Sokołowska 29/37, 01-142 Warsaw, Poland

autor

Skiba Jacek

• Institute of High Pressure Physics of the Polish Academy of Sciences UNIPRESS, Sokołowska 29/37, 01-142 Warsaw, Poland

autor

Przybysz Sylwia

• Institute of High Pressure Physics of the Polish Academy of Sciences UNIPRESS, Sokołowska 29/37, 01-142 Warsaw, Poland

autor

Smalc-Koziorowska Julita

• Institute of High Pressure Physics of the Polish Academy of Sciences UNIPRESS, Sokołowska 29/37, 01-142 Warsaw, Poland

Bibliografia

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Uwagi

Opracowanie rekordu ze środków MEiN, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2022-2023).