Unraveling irradiation induced grain growth with in situ transmission electron microscopy and coordinated modeling
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:
- Publication Date:
- 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.
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
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.
@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}
}
https://doi.org/10.1063/1.4935238
Web of Science