Evolution of 2D Potts Model Grain Microstructures from an Initial Hillert Size Distribution

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Grain growth experiments and simulations exhibit self-similar grain size distributions quite different from that derived via a mean field approach by Hillert [ 1]. To test whether this discrepancy is due to insufficient anneal times, two different two-dimensional grain structures with realistic topologies and Hillert grain size distributions are generated and subjected to grain growth via the Monte Carlo Potts Model (MCPM). In both cases, the observed self-similar grain size distributions deviate from the initial Hillert form and conform instead to that observed in MCPM grain growth simulations that start from a random microstructure. This suggests that the Hillert grain ... continued below

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Battaile, C.C. & E.A., Holm October 19, 1998.

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This article is part of the collection entitled: Office of Scientific & Technical Information Technical Reports and was provided by UNT Libraries Government Documents Department to Digital Library, a digital repository hosted by the UNT Libraries. It has been viewed 45 times . More information about this article can be viewed below.

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  • Sandia National Laboratories
    Publisher Info: Sandia National Laboratories, Albuquerque, NM, and Livermore, CA
    Place of Publication: Albuquerque, New Mexico

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Description

Grain growth experiments and simulations exhibit self-similar grain size distributions quite different from that derived via a mean field approach by Hillert [ 1]. To test whether this discrepancy is due to insufficient anneal times, two different two-dimensional grain structures with realistic topologies and Hillert grain size distributions are generated and subjected to grain growth via the Monte Carlo Potts Model (MCPM). In both cases, the observed self-similar grain size distributions deviate from the initial Hillert form and conform instead to that observed in MCPM grain growth simulations that start from a random microstructure. This suggests that the Hillert grain size distribution is not an attractor.

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  • Third International Conference on Grain Growth; Pittsburgh, PA; 06/14-19/1999

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  • Other: DE00001078
  • Report No.: SAND98-2331C
  • Grant Number: AC04-94AL85000
  • Office of Scientific & Technical Information Report Number: 1078
  • Archival Resource Key: ark:/67531/metadc619303

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  • October 19, 1998

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  • June 16, 2015, 7:43 a.m.

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  • Nov. 28, 2016, 1:47 p.m.

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Battaile, C.C. & E.A., Holm. Evolution of 2D Potts Model Grain Microstructures from an Initial Hillert Size Distribution, article, October 19, 1998; Albuquerque, New Mexico. (digital.library.unt.edu/ark:/67531/metadc619303/: accessed June 21, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.