Evolution of microstructure and texture during annealing of Al-2.5%Mg-0.2%Sc severely deformed by a combination of accumulative roll bonding (ARB) and conventional rolling

Gatti, J R and Bhattacharjee, Pinaki Prasad (2015) Evolution of microstructure and texture during annealing of Al-2.5%Mg-0.2%Sc severely deformed by a combination of accumulative roll bonding (ARB) and conventional rolling. In: 17th International Conference on Textures of Materials, 24-29 August, 2014, Dresden; Germany.

Preview

Text (Open access)
1510_raiith_1757-899X_82_1_012045.pdf - Published Version
Available under License Creative Commons Attribution.
Download (898kB) | Preview

Abstract

Evolution of microstructure and texture during heavy cold-rolling and annealing of Al-2.5%Mg-0.2%Sc alloy was investigated. For this purpose recrystallized sheets of 1mm thickness having finely dispersed precipitates were processed to 3 cycles of ARB (equivalent strain, εeq=2.4) followed by conventional rolling to a final thickness of 200μm resulting in total equivalent strain of 4.0. Evolution of ultrafine microstructure and strong copper or pure metal type texture were observed during deformation. During annealing very stable microstructure was observed up to 400°C but further annealing resulted in formation of a layered microstructure with deformed layer sandwiched between recrystallized layers. Formation of strong cube texture is not observed in the recrystallized layers. Isothermal annealing for longer time at 500°C leads to abnormal growth of Q orientation ({013}<213>) within the deformed layer.

[error in script]

IITH Creators:

IITH Creators	ORCiD
Bhattacharjee, Pinaki Prasad	http://orcid.org/0000-0002-6422-2601

Item Type:

Conference or Workshop Item (Paper)

Uncontrolled Keywords:

Aluminum; Annealing; Cold rolling; Isothermal annealing; Microstructural evolution; Microstructure; Recrystallization (metallurgy); Rolling; Textures Abnormal growth; Accumulative roll bonding; Conventional rolling; Deformed layers; Equivalent strains; Layered microstructure; Recrystallized layer; Ultra-fine microstructures; ICOTOM 2014

Subjects:

Others > Metallurgy
Materials Engineering > Materials engineering

Divisions:

Department of Material Science Engineering

Depositing User:

Team Library

Date Deposited:

18 May 2015 07:00

Last Modified:

31 Aug 2017 06:59

URI:

http://raiithold.iith.ac.in/id/eprint/1510