Dynamic recrystallization at superplastic deformation of duralumin with initial recrystallized structure

The mean grain size along and across the tension axis for the duralumin-type alloy Al-4Cu-2.2Mg-0.6Mn-0.1Ti with initial recrystallized ultra-fine grain structure at superplastic deformation (SPD) in the II strain rate range at 490 deg C increases greatly with strain increase up to 100-150%, then ch...

Full description

Saved in:
Bibliographic Details
Published in:Scripta materialia 2000-04, Vol.42 (9), p.899-904
Main Authors: Novikov, I.I, Portnoy, V.K, Titov, A.O, Belov, D.Yu
Format: Article
Language:English
Subjects:
Aluminium alloy
ALUMINIUM BASE ALLOYS
DEFORMATION
ELONGATION
GRAIN GROWTH
GRAIN SIZE
MATERIALS SCIENCE
RECRYSTALLIZATION
STRAIN RATE
Superplasticity
Citations: Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The mean grain size along and across the tension axis for the duralumin-type alloy Al-4Cu-2.2Mg-0.6Mn-0.1Ti with initial recrystallized ultra-fine grain structure at superplastic deformation (SPD) in the II strain rate range at 490 deg C increases greatly with strain increase up to 100-150%, then changes comparatively weakly or even passes the maximum at the mentioned strains. The development of dynamic recrystallization at SPD of the studied alloy consisting of the fragmentation of the grains into the smaller ones has been established in the region of strains corresponding to the maximum of index m.
ISSN:1359-6462
1872-8456
DOI:10.1016/S1359-6462(00)00310-9