Room temperature plasticity in m-Al13 Co4 studied by microcompression and high resolution scanning transmission electron microscopy
Published version
Peer-reviewed
Repository URI
Repository DOI
Change log
Authors
Korte-Kerzel, S
Schnabel, V
Clegg, WJ
Heggen, M
Abstract
In several complex crystals, like Al13Co4, metadislocations have been shown to facilitate plastic flow at high temperature. Consistent deformation has been revealed in small scale testing down to room temperature, but until now, no high resolution studies of the underlying dislocation core structures have been conducted to confirm the presence of metadislocations where diffusion slows down towards room temperature. Here, we used microcompression and high resolution TEM to reveal that room temperature plasticity in the monoclinic Al13Co4 phase does indeed occur by motion of metadislocations and that these are closely related to those reported previously in the orthorhombic Al13Co4 phase.
Description
Keywords
Plasticity, Complex metallic alloy, Dislocations, HR-TEM, Microcompression
Journal Title
Scripta Materialia
Conference Name
Journal ISSN
1359-6462
Volume Title
146
Publisher
Elsevier BV
Publisher DOI
Sponsorship
Engineering and Physical Sciences Research Council (EP/M005607/1)