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Using coupled micropillar compression and micro-Laue diffraction to investigate deformation mechanisms in a complex metallic alloy Al13Co4
Authors:
Ayan
Bhowmik
(University of Cambridge; Imperial College London)
,
Igor
Dolbnya
(Diamond Light Source)
,
Thomas
Britton
(Imperial College London)
,
Nicholas
Jones
(University of Cambridge)
,
Giorgio
Sernicola
(Imperial College London)
,
Claudia
Walter
(University of Cambridge)
,
Peter
Gille
(Ludwig-Maximilians-Universität München)
,
David
Dye
(Imperial College London)
,
William
Clegg
(Newcastle University)
,
Finn
Giuliani
(Imperial College London)
Co-authored by industrial partner:
No
Type:
Journal Paper
Journal:
Applied Physics Letters
, VOL 108
State:
Published (Approved)
Published:
March 2016
Diamond Proposal Number(s):
8179

Abstract: In this study, we have used in-situ micro-Laue diffraction combined with micropillar compression of focused ion beam milled Al13Co4 complex metallic alloy to investigate the evolution of deformation in Al13Co4. Streaking of the Laue spots shows that the onset of plastic flow occurs at stresses as low as 0.8 GPa, although macroscopic yield only becomes apparent at 2 GPa. The measured misorientations, obtained from peak splitting, enable the geometrically necessary dislocation density to be estimated as 1.1 × 1013 m−2.
Journal Keywords: Deformation; Bending moment; Materials modification; Focused ion beam; Transmission electron microscopy; Mechanical stress; Crystal lattices; X-ray diffraction; Plasticity; Crystallographic defects
Diamond Keywords: Alloys
Subject Areas:
Materials
Instruments:
B16-Test Beamline
Other Facilities: 34-ID-E at APS
Added On:
31/03/2016 10:58
Documents:
1.4944486.pdf
Discipline Tags:
Materials Science
Metallurgy
Technical Tags:
Diffraction