Anisotropy of structural and mechanical properties in CuCrZr alloy following hydrostatic extrusion process

• Autorzy: Przybysz Sylwia , Kulczyk Mariusz , Skiba Jacek , Skorupska Monika

Identyfikatory

DOI

10.24425/bpasts.2022.141725

• Języki publikacji: EN

Abstrakty

EN

The methods of severe plastic deformation (SPD) of metals and metal alloys are very attractive due to the possibility of refinement of the grains to nanometric sizes, which facilitates obtaining high mechanical properties. This study investigated the influence of SPD in the process of hydrostatic extrusion (HE) on the anisotropy of the mechanical properties of the CuCrZr copper alloy. The method of HE leads to the formation of a characteristic microstructure in deformed materials, which can determine their potential applications. On the longitudinal sections of the extruded bars, a strong morphological texture is observed, manifested by elongated grains in the direction of extrusion. In the transverse direction, these grains are visible as equiaxed. The anisotropy of properties was mainly determined based on the analysis of the static mini-sample static tensile test and the dynamic impact test. The obtained results were correlated with microstructural observations. In the study, three different degrees of deformation were applied at the level necessary to refine the grain size to the ultrafine-grained level. Regardless of the applied degree of deformation, the effect of the formation of a strong morphological texture was demonstrated, as a result of which there is a clear difference between the mechanical properties depending on the test direction, both by the static and dynamic method. The obtained results allow for the identification of the characteristic structure formed during the HE process and the more effective use of the CuCrZr copper alloy in applications.

Słowa kluczowe

EN

hydrostatic extrusion; anisotropy; mechanical properties; grain refinement; CuCrZr alloys

PL

wytłaczanie hydrostatyczne; anizotropia; właściwości mechaniczne; rozdrabnianie ziarna; stop CuCrZr

• Wydawca: Polska Akademia Nauk, Wydział IV Nauk Technicznych
• Czasopismo: Bulletin of the Polish Academy of Sciences. Technical Sciences
• Rocznik: 2022
• Tom: Vol. 70, nr 4
• Strony: art. no. e141725
• Opis fizyczny: Bibliogr. 43 poz., rys., tab.

Twórcy

autor

Przybysz Sylwia

• Institute of High Pressure Physics of the Polish Academy of Sciences, Warszawa, Poland

autor

Kulczyk Mariusz

• Institute of High Pressure Physics of the Polish Academy of Sciences, Warszawa, Poland

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

autor

Skiba Jacek

• Institute of High Pressure Physics of the Polish Academy of Sciences, Warszawa, Poland

autor

Skorupska Monika

• Institute of High Pressure Physics of the Polish Academy of Sciences, Warszawa, Poland

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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).