Effect of temperature on microstructure stability of aluminium alloys.

• Autorzy: Richert M. , Boczkal S. , Białek A. , Leszczyńska B.
• Konferencja: International Conference on Fabrication and Properties of Metallic Nanomaterials, Warsaw, 17-19 June, 2004.
• Języki publikacji: EN

Abstrakty

EN

In this work, the investigations of the AlMg5 and AlCu4Zr alloys deformed by the Cyclic Extrusion Compression (CEC) method, in the range of true strains phi = 0.4 - 14, were performed. The microstructure and microhardness of deformed samples were studied. In both investigated alloys the microstructure, showing nanometric dimensions with large misorientation between nanograins, was found. The average microhardness, of both alloys, after deformation phi = 14, reached the mean value of about 110 žHV100. The samples deformed by the CEC method were annealed at temperatures: 150 degrees C for 80 s and 300 degrees C for 130 s. The performed investigations indicate that annealing of nanostructure alloys AlMg5 and AlCu4Zr for a short time 80 s at 150degrees C did not induce any substantial changes in microhardness and microstructure. The microhardness was still comparable with the microhardness of the deformed alloys. This suggests some low temperature stability of microstructures of nanomaterials, produced by the CEC method. However with the increase of the annealing temperature to 300 degrees C and the annealing time to 130 s, a considerable lowering of sample microhardness was found.

Słowa kluczowe

EN

temperature effect; microstructure; aluminium alloy

PL

efekt cieplny; mikrostruktura; stop aluminium

• Wydawca: Komitet Nauki o Materiałach PAN
• Czasopismo: Archives of Materials Science
• Rocznik: 2004
• Tom: Vol. 25, nr 4
• Strony: 379--384

Twórcy

autor

Richert M.

• University of Science and Technology, Faculty of Non-Ferrous Metals, al. Mickiewicza 30, 30-059 Kraków, Poland

autor

Boczkal S.

• Institute of Non-Ferrous Metals, Light Metals Division in Skawina, ul. Piłsudskiego 19, 32-059 Skawina, Poland

autor

Białek A.

• University of Science and Technology, Faculty of Non-Ferrous Metals, al. Mickiewicza 30, 30-059 Kraków, Poland

autor

Leszczyńska B.

• University of Science and Technology, Faculty of Non-Ferrous Metals, al. Mickiewicza 30, 30-059 Kraków, Poland

• University of Science and Technology, Faculty of Non-Ferrous Metals, al. Mickiewicza 30, 30-059 Kraków, Poland

Bibliografia

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