Formation of ultrafine-grained (UFG) structure and mechanical properties by severe plastic deformation (SPD)

Autor:	M. Besterci, T. Kvačkaj, R. Kočiško, J. Bacsó, K. Sulleiová
Jazyk:	angličtina
Rok vydání:	2008
Předmět:	severe plastic deformation ultrafine-grained materials equal channel angular pressin TEM fracture surface Mining engineering. Metallurgy TN1-997
Zdroj:	Metalurgija, Vol 47, Iss 4, Pp 295-299 (2008)
Druh dokumentu:	article
ISSN:	0543-5846 1334-2576
Popis:	Commercial pure cooper (99,9% Cu) was deformed by equal channel angular pressing (ECAP) using up to 10 passes, route C. The evolution of microstructure and fracture character were observed by OM, SEM and TEM. The mean grain size decreased with increasing deformation, after 10 passes to 100 – 300 nm. TEM analysis suggested the possible nanostructure formation mechanism by the formation of cellular structure in grains, forming of subgrains and then forming of high angle nanograins with random orientation. Fractures of ECAP Cu material after 10 passes had transcrystalline ductile character with dimple morphology.
Databáze:	Directory of Open Access Journals
Externí odkaz:	https://doaj.org/article/88c3b7f2caa6478db4c8153d56370f0e Zobrazit plný text záznamu View record in DOAJ Plný text ve formátu PDF