Deformation of cube-textured aluminum studied using laser-induced photoelectron emission

The evolution of the kinetic energy distribution of photoelectrons from a cube-oriented aluminum sample during tensile deformation was probed with a retarding field energy analyzer. Because of the anisotropy of the aluminum work function, the electron-energy distribution is altered as the area fract...

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Bibliographic Details
Published in:Journal of materials research 2007-09, Vol.22 (9), p.2582-2589
Main Authors: Cai, M., Langford, S.C., Dickinson, J.T., Levine, L.E.
Format: Article
Language:English
Subjects:
Crystallographic structure
Laser
Texture
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Summary:The evolution of the kinetic energy distribution of photoelectrons from a cube-oriented aluminum sample during tensile deformation was probed with a retarding field energy analyzer. Because of the anisotropy of the aluminum work function, the electron-energy distribution is altered as the area fractions of the major surface planes change during deformation. In cube-textured aluminum, deformation reduces the {100} area fraction and the relatively low energy electrons from these surfaces. Conversely, the {110} and {111} area fractions and the relatively high energy electrons from these surfaces both increase. These changes are quantitatively consistent with texture analysis by electron backscattered diffraction (EBSD). They reflect deformation-induced production of {111} surfaces by slip and the exposure of {110} surfaces by grain rotation. Photoelectron kinetic energy measurements supplement EBSD measurements and are readily acquired in real-time.
ISSN:0884-2914
2044-5326
DOI:10.1557/jmr.2007.0313