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

Published online by Cambridge University Press:  31 January 2011

M. Cai ,
S.C. Langford ,
J.T. Dickinson  and
L.E. Levine
M. Cai*
Affiliation:
Department of Physics and Astronomy, Washington State University, Pullman, Washington 99164-2814
S.C. Langford
Affiliation:
Department of Physics and Astronomy, Washington State University, Pullman, Washington 99164-2814
J.T. Dickinson
Affiliation:
Department of Physics and Astronomy, Washington State University, Pullman, Washington 99164-2814
L.E. Levine
Affiliation:
Metallurgy Division, National Institute of Standards and Technology, Gaithersburg, Maryland 20899-8553
*
a)Address all correspondence to this author. Present address: Department of Engineering Technology, University of Houston, Houston, Texas 77204. e-mail: mcai@uh.edu.
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Abstract

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.

Keywords

Crystallographic structureLaserTexture
Type
Articles
Information
Journal of Materials Research , Volume 22 , Issue 9 , September 2007 , pp. 2582 - 2589
Copyright
Copyright © Materials Research Society 2007

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