|About this Abstract
||2021 TMS Annual Meeting & Exhibition
||Deformation Induced Microstructural Modification
||Low Temperature Superplasticity in Al 5083 Produced by Accumulative Roll Bonding
||Brady NL McBride, Kester D Clarke, Amy J Clakre
|On-Site Speaker (Planned)
||Brady NL McBride
Accumulative roll bonding is a novel severe plastic deformation technique used to produce ultrafine-grained material through repeated stacking and roll bonding. This process has provided pathways for low temperature superplasticity in certain aluminum alloys, such as Al 5083.
Superplasticity in general is dependent on temperature and strain rate. These parameters become increasingly important with submicron-sized grains, as grain growth must be avoided to realize low temperature superplasticity by means of grain boundary sliding. This work explores the relationship between preheating, deformation temperature, strain rate, and the primary deformation mechanisms responsible for superplasticity during uniaxial tensile testing of Al 5083 produced by accumulative roll bonding.
||Aluminum, Other, Other