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  Effective evaluation of interfacial energy by matching precipitate sizes measured along a composition gradient with Kampmann-Wagner numerical (KWN) modeling

Zhang, Q., Makineni, S. K., Allison, J. E., & Zhao, J.-C. (2019). Effective evaluation of interfacial energy by matching precipitate sizes measured along a composition gradient with Kampmann-Wagner numerical (KWN) modeling. Scripta Materialia, 160, 70-74. doi:10.1016/j.scriptamat.2018.09.048.

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 Creators:
Zhang, Qiaofu1, Author              
Makineni, Surendra Kumar2, 3, Author              
Allison, John E.3, Author              
Zhao, Ji-Cheng1, Author              
Affiliations:
1Department of Materials Science and Engineering, The Ohio State University, Columbus, OH 43210, USA, ou_persistent22              
2Atom Probe Tomography, Microstructure Physics and Alloy Design, Max-Planck-Institut für Eisenforschung GmbH, Max Planck Society, ou_1863384              
3Department of Materials Science and Engineering, University of Michigan, Ann Arbor, MI 48109, USA, ou_persistent22              

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Free keywords: Aluminum alloys; Binary alloys; Interfacial energy; Nickel compounds; Nucleation, Classical nucleation; Composition gradient; High temperature; Lower temperatures; Nucleation and growth; Phase precipitations; Precipitate size, Precipitation (chemical)
 Abstract: A dual-anneal diffusion multiple was utilized to generate a composition gradient via a first anneal at a high temperature followed by a second anneal at a lower temperature to induce phase precipitation as a function of composition/supersaturation. By adjusting the interfacial energy value in simulations using the classical nucleation and growth theories as implemented in the Kampmann-Wagner numerical (KWN) model and matching the simulated average precipitate sizes at different compositions with the experimental measurements along the composition gradient, the Ni 3 Al/fcc interfacial energy in the Ni-Al system at 700 °C was effectively determined to be ~12 mJ/m 2 . © 2018 Acta Materialia Inc.

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Language(s): eng - English
 Dates: 2019-02
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1016/j.scriptamat.2018.09.048
 Degree: -

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Title: Scripta Materialia
  Abbreviation : Scripta Mater.
Source Genre: Journal
 Creator(s):
Affiliations:
Publ. Info: Amsterdam : Elsevier B. V.
Pages: - Volume / Issue: 160 Sequence Number: - Start / End Page: 70 - 74 Identifier: ISSN: 1359-6462
CoNE: https://pure.mpg.de/cone/journals/resource/954926243506