Two-dimensional grain growth in rapidly solidified succinonitrile films |
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Authors: | M Palmer K Rajan M Glicksman V Fradkov J Nordberg |
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Affiliation: | (1) Materials Engineering Department, Rensselaer Polytechnic Institute, 12180-3590 Troy, NY |
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Abstract: | The kinetics and topological mechanisms of normal grain growth have been examined throughin situ dynamic studies on rapidly solidified succinonitrile (SCN). Thein situ studies allowed for continuous monitoring of the evolution of individual grains during growth. We have assessed the Mullins—Von
Neumann topological grain growth law and the Burke—Turnbull parabolic rate law and have determined rate constants that describe
grain growth. This work demonstrates that both laws are both obeyed globally and consistently. Thesein situ studies permit one to follow the unit operations associated with grain growth kinetics. This article demonstrates the usefulness
of succinonitrile as a model analog system for studying grain growth.
This article is based on a presentation made in the symposium “Fine Grains And Their Growth in Rapidly Solidified Materials,”
TMS Materials Week ’93, Pittsburgh, PA, October 18–21, 1993. |
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