Producing bulk nanocrystalline materials by combined hydrostatic extrusion and equal-channel angular pressing

• Autorzy: Kulczyk M. , Pachla W. , Mazur A. , Suś-Ryszkowska M. , Krasilnikov N. , Kurzydłowski K. J.
• Języki publikacji: EN

Abstrakty

EN

Nickel and copper were subject to severe plastic deformation at room temperature, using hydrostatic extrusion (HE) and equal-channel angular pressing (ECAP). The maximum deformation was 13.5 in nickel and 22.3 in copper. These deformations were obtained by each of the techniques separately and by their combination. It has been found that the combined HE and ECAP deformation greatly increases the homogeneity of the microstructure and improves considerably its mechanical properties comparing with a single technique. After the combined treatment, the grain size of both copper and nickel was of the order of 100 nm. The experiments have shown that the combination of HE and ECAP techniques permits producing homogeneous nanocrystalline materials of large volumes.

Słowa kluczowe

EN

severe plastic deformation; hydrostatic extrusion; nanocrystalline structure; grain refinement; nickel; copper

• Wydawca: De Gruyter
• Czasopismo: Materials Science Poland
• Rocznik: 2007
• Tom: Vol. 25, No. 4
• Strony: 991--999
• Opis fizyczny: Bibliogr. 18 poz.

Twórcy

autor

Kulczyk M.

autor

Pachla W.

autor

Mazur A.

autor

Suś-Ryszkowska M.

autor

Krasilnikov N.

autor

Kurzydłowski K. J.

• Institute of High Pressure Physics, Polish Academy of Sciences, ul. Sokolowska 29/37, 01-142 Warsaw, Poland

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