Microstructural characteristics of ultrafine-grained aluminum produced using equal-channel angular pressing

Autor:	Terence G. Langdon, Zenji Horita, Minoru Nemoto, Yoshinori Iwahashi, Minoru Furukawa
Rok vydání:	1998
Předmět:	Shearing (physics) Pressing Materials science Metallurgy Metals and Alloys Sintering Condensed Matter Physics Microstructure Grain size law.invention Optical microscope Mechanics of Materials law Metallography Elongation
Zdroj:	Metallurgical and Materials Transactions A. 29:2245-2252
ISSN:	1543-1940 1073-5623
DOI:	10.1007/s11661-998-0102-5
Popis:	The shearing associated with equal-channel angular (ECA) pressing was examined using optical microscopy. Samples of pure Al with a large grain size were subjected to ECA pressing to different strains and then examined on three orthogonal planes. Samples were pressed without any rotation or with rotations of either 90 or 180 deg between each consecutive pressing. The experimental observations are compared with models which predict the shearing characteristics associated with ECA pressing under different conditions. It is demonstrated that there is good agreement, in terms of both the grain elongation and the shearing within individual grains, between the experimental results and the predictions of the models.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::9363749b1023564b015eb31e122415ee https://doi.org/10.1007/s11661-998-0102-5 Zobrazit plný text záznamu Full text from SpringerLink