Unraveling irradiation induced grain growth with in situ transmission electron microscopy and coordinated modeling

Bufford, D. C.; Abdeljawad, F. F.; Foiles, S. M.; Hattar, K.

doi:10.1063/1.4935238

Title: Unraveling irradiation induced grain growth with in situ transmission electron microscopy and coordinated modeling

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Abstract

Here, nanostructuring has been proposed as a method to enhance radiation tolerance, but many metallic systems are rejected due to significant concerns regarding long term grain boundary and interface stability. This work utilized recent advancements in transmission electron microscopy (TEM) to quantitatively characterize the grain size, texture, and individual grain boundary character in a nanocrystalline gold model system before and after in situ TEM ion irradiation with 10 MeV Si. The initial experimental measurements were fed into a mesoscale phase field model, which incorporates the role of irradiation-induced thermal events on boundary properties, to directly compare the observed and simulated grain growth with varied parameters. The observed microstructure evolution deviated subtly from previously reported normal grain growth in which some boundaries remained essentially static. In broader terms, the combined experimental and modeling techniques presented herein provide future avenues to enhance quantification and prediction of the thermal, mechanical, or radiation stability of grain boundaries in nanostructured crystalline systems.

Authors:: Bufford, D. C.; Abdeljawad, F. F.; Foiles, S. M.; Hattar, K.

Publication Date:: Mon Nov 09 00:00:00 EST 2015

Research Org.:: Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)

Sponsoring Org.:: USDOE Office of Science (SC), Basic Energy Sciences (BES)

OSTI Identifier:: 1225557

Alternate Identifier(s):: OSTI ID: 1327909; OSTI ID: 1420597

Report Number(s):: SAND-2016-9478J
Journal ID: ISSN 0003-6951

Grant/Contract Number:: AC04-94AL85000

Resource Type:: Published Article

Journal Name:: Applied Physics Letters

Additional Journal Information:: Journal Name: Applied Physics Letters Journal Volume: 107 Journal Issue: 19; Journal ID: ISSN 0003-6951

Publisher:: American Institute of Physics

Country of Publication:: United States

Language:: English

Subject:: 36 MATERIALS SCIENCE; grain boundaries; transmission electron microscopy; crystal growth; nanocrystalline materials; ion radiation effects

Citation Formats


                    Bufford, D. C., Abdeljawad, F. F., Foiles, S. M., and Hattar, K. Unraveling irradiation induced grain growth with in situ transmission electron microscopy and coordinated modeling.  United States: N. p., 2015. 
Web.  doi:10.1063/1.4935238.

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                    Bufford, D. C., Abdeljawad, F. F., Foiles, S. M., & Hattar, K. Unraveling irradiation induced grain growth with in situ transmission electron microscopy and coordinated modeling.  United States.  https://doi.org/10.1063/1.4935238

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                    Bufford, D. C., Abdeljawad, F. F., Foiles, S. M., and Hattar, K. Mon .  
"Unraveling irradiation induced grain growth with in situ transmission electron microscopy and coordinated modeling".  United States.  https://doi.org/10.1063/1.4935238.

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@article{osti_1225557,

  title        = {Unraveling irradiation induced grain growth with in situ transmission electron microscopy and coordinated modeling},

  author       = {Bufford, D. C. and Abdeljawad, F. F. and Foiles, S. M. and Hattar, K.},

  abstractNote = {Here, nanostructuring has been proposed as a method to enhance radiation tolerance, but many metallic systems are rejected due to significant concerns regarding long term grain boundary and interface stability. This work utilized recent advancements in transmission electron microscopy (TEM) to quantitatively characterize the grain size, texture, and individual grain boundary character in a nanocrystalline gold model system before and after in situ TEM ion irradiation with 10 MeV Si. The initial experimental measurements were fed into a mesoscale phase field model, which incorporates the role of irradiation-induced thermal events on boundary properties, to directly compare the observed and simulated grain growth with varied parameters. The observed microstructure evolution deviated subtly from previously reported normal grain growth in which some boundaries remained essentially static. In broader terms, the combined experimental and modeling techniques presented herein provide future avenues to enhance quantification and prediction of the thermal, mechanical, or radiation stability of grain boundaries in nanostructured crystalline systems.},

  doi          = {10.1063/1.4935238},

  journal      = {Applied Physics Letters},

  number       = 19,

  volume       = 107,

  place        = {United States},

  year         = {Mon Nov 09 00:00:00 EST 2015},

  month        = {Mon Nov 09 00:00:00 EST 2015}

}

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