Structure and annealing behavior of an Al-Mg-TM alloy processed by equal channel angular pressing

Autor:	O Sh Sitdikov, Mikhail Markushev, Elena Avtokratova, M.J.N.V. Prasad, S.V.S.N. Murty, Oksana Mukhametdinova, Bhagwati Prasad Kashyap
Rok vydání:	2014
Předmět:	Pressing Grain growth Materials science Annealing (metallurgy) Alloy Metallurgy engineering General Materials Science Superplasticity Atmospheric temperature range engineering.material Severe plastic deformation Grain size
Zdroj:	Letters on Materials. 4:93-95
ISSN:	2410-3535 2218-5046
DOI:	10.22226/2410-3535-2014-2-93-95
Popis:	1 Institute for Metals Superplasticity Problems RAS, Khalturin St. 39, 450001, Ufa, Russia 2Vikram Sarabhai Space Center, Trivandrum-695022, Kerala, India 3Indian Institute of Technology Bombay, Powai, Mumbai-400076, India Effects of equal-channel angular pressing (ECAP) at 325 oC to a strain, e~10, and post-ECAP annealing for 1 hr in the temperature range of 350–520 oC on structure of the cast and homogenized Al-Mg-Sc-Zr alloy 01570C were analyzed. It is found that annealing of ECAP processed material containing near homogeneous ultrafine-grained structure with ~1 μm grain size led to normal grain growth, accompanied by coarsening of Al3(Sc,Zr) dispersoids. As compared to the cast alloy, the coarsening of dispersoids in the deformed alloy started at lower temperature and occurred more intensely, and resulted in more rapid loss of their coherency with surrounding matrix.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::ee6009e062a59af7d472633c451b62fd https://doi.org/10.22226/2410-3535-2014-2-93-95 Zobrazit plný text záznamu