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Comparison of Experimental and Computational Aspects of Grain Growth in Al-Foil

Published online by Cambridge University Press:  21 March 2011

Melik C. Demirel ,
Andrew P. Kuprat ,
Denise C. George ,
Bassem S. El-Dasher ,
Neil N. Carlson ,
Galen K. Straub  and
Anthony D. Rollett
Melik C. Demirel
Affiliation:
Carnegie Mellon University, Materials Science & Engineering, PA, USA
Andrew P. Kuprat
Affiliation:
Theoretical Division, T-1, Los Alamos National Laboratory, NM, USA
Denise C. George
Affiliation:
Theoretical Division, T-1, Los Alamos National Laboratory, NM, USA
Bassem S. El-Dasher
Affiliation:
Carnegie Mellon University, Materials Science & Engineering, PA, USA
Neil N. Carlson
Affiliation:
Computational Materials Group, DigitalDNA Laboratories, Motorola, NM, USA
Galen K. Straub
Affiliation:
Theoretical Division, T-1, Los Alamos National Laboratory, NM, USA
Anthony D. Rollett
Affiliation:
Carnegie Mellon University, Materials Science & Engineering, PA, USA
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Abstract

Grain boundary and crystallographic orientation information of an Al-foil with a columnar grain structure is characterized by Electron Backscattered Diffraction (EBSD) technique. The starting microstructure and grain boundary properties are implemented as an input for the three- dimensional grain growth simulation. In the computational model, minimization of the interface energy is the driving force for the grain boundary motion. The computed evolved microstructure is compared with the final experimental microstructure, after annealing at 550 °C. Good agreement is observed between the experimentally obtained microstructure and the simulated microstructure. The constitutive description of the grain boundary properties was based on a 1- parameter characterization of the variation in mobility with misorientation angle.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 652: Symposium Y – Influences of Interface & Dislocation Behavior on Microstructure Evolution , 2000 , Y1.8
Copyright
Copyright © Materials Research Society 2001

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References

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