Journal article
A combined study of surface roughness in polycrystalline aluminium during uniaxial deformation using laser-induced photoemission and confocal microscopy
Philosophical magazine (Abingdon, England), Vol.87(6), pp.907-924
02/21/2007
Handle:
https://hdl.handle.net/2376/107636
Abstract
A new technique integrating measurements obtained by photo-stimulated electron (PSE) emission and scanning laser confocal microscopy (SLCM) has been developed to characterize the deformation of commercially pure aluminium in uniaxial plastic strain. Real time, in situ PSE signals provide details about the evolution and propagation rates of surface events during the deformation process. High-resolution SLCM measurements yield details describing the relative magnitude and spatial distribution of the surface features. During homogeneous deformation, uniform generation of surface area produces a monotonic increase in PSE intensity whereas necking induces a saturation condition. Analysis of the surface area created by the deformation revealed that the rate of generation correlates well with the PSE intensity. The consistencies in the data acquired with these two techniques signify that they yield complementary information and that the combination provides essential details about the deformation process in a material with low hardness such as an aluminium alloy.
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Details
- Title
- A combined study of surface roughness in polycrystalline aluminium during uniaxial deformation using laser-induced photoemission and confocal microscopy
- Creators
- M Cai - Department of Physics and Astronomy , Washington State UniversityM. R Stoudt - Materials Science and Engineering Laboratory , National Institute of Standards and TechnologyL. E Levine - Materials Science and Engineering Laboratory , National Institute of Standards and TechnologyJ. T Dickinson - Department of Physics and Astronomy , Washington State University
- Publication Details
- Philosophical magazine (Abingdon, England), Vol.87(6), pp.907-924
- Academic Unit
- Physics and Astronomy, Department of
- Publisher
- Taylor & Francis Group
- Identifiers
- 99900547127501842
- Language
- English
- Resource Type
- Journal article