Naslov
Forming of ultrafine grained structure in aluminium by CGP method

Autori
Zrnik, J. ; Mamuzić, Ilija ; Kovarik, T. ; Cieslar, M.

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
8. međunarodni simpozij Hrvatskog metalurškog društva "Materijali i metalurgija" : sažeci (tiskano u: Metalurgija 47(2008)3 (229-284)) / Mamuzić, Ilija - Zagreb : Hrvatsko metalurško društvo, 2008, 253-253

Skup
8. međunarodni simpozij Hrvatskog metalurškog društva "Materijali i metalurgija"

Mjesto i datum
Šibenik, Hrvatska, 22.06.2008. - 26.06.2008

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Constrained groove pressing ; aluminium ; severe plastic deformation ; microstructure evolution ; mechanical properties

Sažetak
The severe plastic deformation method known as constrained groove pressing (CGP) was used to produce ultrafine grained (UFG) structure in recrystallized aluminium (99.99%) at room temperature. The impact of repeated groove pressing, upon microstructure refinement was investigated by transmission electron microscopy (TEM) of thin foils. The changes in mechanical properties measured by tensile and by hardness tests were related to microstructure development. The yield stress and ultimate tensile strength reached a maximum after four passes. The loss of ductility was observed in all processed plates. Hardness values measured in different area of the deformed plates indicated strain heterogeneity distribution, regardless the high straining was maintained.

Izvorni jezik
Engleski

Znanstvena područja
Metalurgija

POVEZANOST RADA