Rate of energy storage and macroscopic strain localization during plastic deformation of polycrystalline metals.

• Autorzy: Oliferuk W. , Korbel A. , Bochniak W.

Warianty tytułu

PL

Szybkość gromadzenia energii i lokalizacji makroskopowego odkształcenia w trakcie plastycznego odkształcania metali polikrystalicznych.

• Konferencja: XVIth Physical Metallurgy and Materials Science Conference on Advanced Materials and Technologies AMT'2001, Gdańsk-Jurata, 16-20 September 2001
• Języki publikacji: PL

Abstrakty

PL

Zbadano bilans energii podczas jednoosiowego rozciągania dwóch grup próbek, wykonanych ze stopu Fe-Si. Przed rozciąganiem wszystkie próbki wygrzano a następnie jedną z grup poddano walcowaniu. Zaproponowano metodę oszacowania zdolności magazynowania energii delta es/delta ew w zakresie makroskopowej lokalizacji odkształcenia plastycznego (es-energia zmagazynowana, ew - energia zużyta na odkształcenie plastyczne). Przedstawiono eksperymentalny dowód na to, że podczas rozwoju makroskopowej lokalizacji odkształcenia zachodzi proces zdrowienia deformowanego materiału.

EN

The energy balance during uniaxial test of the annealed Fe-Si sheet and the rolled one has been studied. The method of estimation of the energy storage rate delta es/delta ew in the stage of macroscopic strain localization has been presented (es is the stored energy and ew is the energy expended in plastic deformation). Heterogeneous temperature distribution on the surface of the loaded sample as an experimental indicator of the macroscopic localization of strain was used. The experimental evidence for the existence of recovery process during a development of the localized plastic deformation has been provided.

Słowa kluczowe

PL

zdolność magazynowania energii; bilans energii; odkształcenie plastyczne; makroskopowa lokalizacja odkształcenia; związek polikrystaliczny; metal

EN

energy storage; energy balance; plastic deformation; macroscopic strain localization; polycrystalline metals

• Wydawca: Wydawnictwo SIGMA-NOT
• Czasopismo: Inżynieria Materiałowa
• Rocznik: 2001
• Tom: R. XXII, nr 5
• Strony: 679--682
• Opis fizyczny: Bibliogr. 18 poz., rys.

Twórcy

autor

Oliferuk W.

• Institute of Fundamental Technological Research, Polish Academy of Sciences, Warsaw, Poland

autor

Korbel A.

• University of Mining and Metallurgy, Cracow, Poland

autor

Bochniak W.

• University of Mining and Metallurgy, Cracow, Poland

• Polish Academy of Sciences, Warsaw

Bibliografia

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