Topological events in two-dimensional grain growth: Experiments and simulations

Fradkov, V E; Glicksman, M E; Palmer, M; Rajan, K

doi:10.1016/0956-7151(94)90213-5

Title: Topological events in two-dimensional grain growth: Experiments and simulations

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Abstract

Grain growth in polycrystals is a process that occurs as a result of the vanishing of small grains. The mean topological class of vanishing two-dimensional (2-D) grains was found experimentally to be about 4.5. This result suggests that most vanishing grains are either 4- or 5-sided. A recent theory of 2-D grain growth is explicitly based on this fact, treating the switching as random events. The process of shrinking of 4- and 5-sided two-dimensional grains was observed experimentally on polycrystalline films of transparent, pure succinonitrile (SCN). Grain shrinking was studied theoretically and simulated by computer (both dynamic and Monte Carlo). It was found that most shrinking grains are topologically stable and remain within their topological class until they are much smaller than their neighbors. They discuss differences which were found with respect to the behavior of 2-D polycrystals, a 2-D ideal soap froth, and a 2-D section of a 3-D grain structure.

Authors:

Fradkov, V E; Glicksman, M E; Palmer, M; Rajan, K ^[1]

Rensselaer Polytechnic Inst., Troy, NY (United States). Materials Engineering Dept.

Publication Date:: Mon Aug 01 00:00:00 EDT 1994

OSTI Identifier:: 6929996

Resource Type:: Journal Article

Journal Name:: Acta Metallurgica et Materialia; (United States)

Additional Journal Information:: Journal Volume: 42:8; Journal ID: ISSN 0956-7151

Country of Publication:: United States

Language:: English

Subject:: 36 MATERIALS SCIENCE; POLYCRYSTALS; GRAIN GROWTH; COMPUTERIZED SIMULATION; MATHEMATICAL MODELS; MICROSTRUCTURE; CRYSTALS; SIMULATION; 360102* - Metals & Alloys- Structure & Phase Studies

Citation Formats


                    Fradkov, V E, Glicksman, M E, Palmer, M, and Rajan, K. Topological events in two-dimensional grain growth: Experiments and simulations.  United States: N. p., 1994. 
        Web.  doi:10.1016/0956-7151(94)90213-5.

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                    Fradkov, V E, Glicksman, M E, Palmer, M, & Rajan, K. Topological events in two-dimensional grain growth: Experiments and simulations.  United States.  https://doi.org/10.1016/0956-7151(94)90213-5

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                    Fradkov, V E, Glicksman, M E, Palmer, M, and Rajan, K. 1994.  
        "Topological events in two-dimensional grain growth: Experiments and simulations".  United States.  https://doi.org/10.1016/0956-7151(94)90213-5.

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@article{osti_6929996,

  title        = {Topological events in two-dimensional grain growth: Experiments and simulations},

  author       = {Fradkov, V E and Glicksman, M E and Palmer, M and Rajan, K},

  abstractNote = {Grain growth in polycrystals is a process that occurs as a result of the vanishing of small grains. The mean topological class of vanishing two-dimensional (2-D) grains was found experimentally to be about 4.5. This result suggests that most vanishing grains are either 4- or 5-sided. A recent theory of 2-D grain growth is explicitly based on this fact, treating the switching as random events. The process of shrinking of 4- and 5-sided two-dimensional grains was observed experimentally on polycrystalline films of transparent, pure succinonitrile (SCN). Grain shrinking was studied theoretically and simulated by computer (both dynamic and Monte Carlo). It was found that most shrinking grains are topologically stable and remain within their topological class until they are much smaller than their neighbors. They discuss differences which were found with respect to the behavior of 2-D polycrystals, a 2-D ideal soap froth, and a 2-D section of a 3-D grain structure.},

  doi          = {10.1016/0956-7151(94)90213-5},

  url          = {https://www.osti.gov/biblio/6929996},
  journal      = {Acta Metallurgica et Materialia; (United States)},

  issn         = {0956-7151},

  number       = ,

  volume       = 42:8,

  place        = {United States},

  year         = {Mon Aug 01 00:00:00 EDT 1994},

  month        = {Mon Aug 01 00:00:00 EDT 1994}

}

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