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Simulation of Grain Growth During Directional Annealing

Published online by Cambridge University Press:  15 February 2011

N. Zacharopoulos ,
E. A. Holm  and
D. J. Srolovitz
N. Zacharopoulos
Affiliation:
Department of Materials Science, University of Michigan, Ann Arbor, MI 48109-2136
E. A. Holm
Affiliation:
Physical and Joining Metallurgy Department, Sandia National Laboratories, Albuquerque, NM 87185-0340
D. J. Srolovitz
Affiliation:
Department of Materials Science, University of Michigan, Ann Arbor, MI 48109-2136
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Abstract

A Monte Carlo simulation procedure is applied to simulate non-uniform grain growth during directional annealing. The assumed temperature profile consists of a small, finite size hot zone which blends smoothly into cold zones ahead and behind the hot zone. The hot zone is assumed to move with a constant velocity. The influence of the ratio of hot zone to cold zone temperatures and the velocity of the temperature field are investigated. The grain size is analyzed as a function of these variables. We find that very high aspect ratio grains (long axis parallel to the thermal field velocity vector) are possible within a restricted velocity window. These results are analyzed in terms of an analytic model based upon conventional grain growth laws.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 362: Symposium J – Grain-Size and Mechanical Properties--Fundamentals and Applications , 1994 , 271
Copyright
Copyright © Materials Research Society 1995

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References

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