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Title: Thermal stability comparison of nanocrystalline Fe-based binary alloy pairs

Abstract

Here, the widely recognized property improvements of nanocrystalline (NC) materials have generated significant interest, yet have been difficult to realize in engineering applications due to the propensity for grain growth in these interface-dense systems. While traditional pathways to thermal stabilization can slow the mobility of grain boundaries, recent theories suggest that solute segregation in NC alloy can reduce the grain boundary energy such that thermodynamic stabilization is achieved. Following the predictions of Murdock et al., here we compare for the first time the thermal stability of a predicted NC stable alloy (Fe-10at.% Mg) with a predicted non-NC stable alloy (Fe-10at.% Cu) using the same processing and characterization methodologies. Results indicate improved thermal stability of the Fe-Mg alloy in comparison to the Fe-Cu, and observed microstructures are consistent with those predicted by Monte Carlo simulations.

Authors:
 [1];  [1];  [1];  [2];  [1];  [3]
  1. Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
  2. National Metal and Materials Technology Center (MTEC), Thani (Thailand); Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)
  3. Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)
Publication Date:
Research Org.:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
OSTI Identifier:
1239366
Report Number(s):
SAND2016-0884J
Journal ID: ISSN 1047-4838; 619002
Grant/Contract Number:  
AC04-94AL85000
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
JOM. Journal of the Minerals, Metals & Materials Society
Additional Journal Information:
Journal Volume: 635; Journal Issue: 3; Journal ID: ISSN 1047-4838
Publisher:
Springer
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE

Citation Formats

Clark, Blythe G., Hattar, Khalid Mikhiel, Marshall, Michael Thomas, Chookajorn, Tonghai, Boyce, Brad L., and Schuh, Christopher A. Thermal stability comparison of nanocrystalline Fe-based binary alloy pairs. United States: N. p., 2016. Web. doi:10.1007/s11837-016-1868-3.
Clark, Blythe G., Hattar, Khalid Mikhiel, Marshall, Michael Thomas, Chookajorn, Tonghai, Boyce, Brad L., & Schuh, Christopher A. Thermal stability comparison of nanocrystalline Fe-based binary alloy pairs. United States. doi:10.1007/s11837-016-1868-3.
Clark, Blythe G., Hattar, Khalid Mikhiel, Marshall, Michael Thomas, Chookajorn, Tonghai, Boyce, Brad L., and Schuh, Christopher A. Thu . "Thermal stability comparison of nanocrystalline Fe-based binary alloy pairs". United States. doi:10.1007/s11837-016-1868-3. https://www.osti.gov/servlets/purl/1239366.
@article{osti_1239366,
title = {Thermal stability comparison of nanocrystalline Fe-based binary alloy pairs},
author = {Clark, Blythe G. and Hattar, Khalid Mikhiel and Marshall, Michael Thomas and Chookajorn, Tonghai and Boyce, Brad L. and Schuh, Christopher A.},
abstractNote = {Here, the widely recognized property improvements of nanocrystalline (NC) materials have generated significant interest, yet have been difficult to realize in engineering applications due to the propensity for grain growth in these interface-dense systems. While traditional pathways to thermal stabilization can slow the mobility of grain boundaries, recent theories suggest that solute segregation in NC alloy can reduce the grain boundary energy such that thermodynamic stabilization is achieved. Following the predictions of Murdock et al., here we compare for the first time the thermal stability of a predicted NC stable alloy (Fe-10at.% Mg) with a predicted non-NC stable alloy (Fe-10at.% Cu) using the same processing and characterization methodologies. Results indicate improved thermal stability of the Fe-Mg alloy in comparison to the Fe-Cu, and observed microstructures are consistent with those predicted by Monte Carlo simulations.},
doi = {10.1007/s11837-016-1868-3},
journal = {JOM. Journal of the Minerals, Metals & Materials Society},
issn = {1047-4838},
number = 3,
volume = 635,
place = {United States},
year = {2016},
month = {3}
}

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Cited by: 13 works
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