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Title: Synergistic stabilization of metastable Fe{sub 23}B{sub 6} and γ-Fe in undercooled Fe{sub 83}B{sub 17}

Abstract

Previous investigations of undercooled liquid Fe{sub 83}B{sub 17} near the eutectic composition have found that metastable crystalline phases, such as Fe{sub 23}B{sub 6}, can be formed and persist down to ambient temperature even for rather modest cooling rates. Using time-resolved high-energy x-ray diffraction on electrostatically levitated samples of Fe{sub 83}B{sub 17}, we demonstrate that the Fe{sub 23}B{sub 6} metastable phase and fcc γ-Fe grow coherently from the undercooled Fe{sub 83}B{sub 17} liquid and effectively suppress the formation of the equilibrium Fe{sub 2}B + bcc α-Fe phases. The stabilization of γ-Fe offers another opportunity for experimental investigations of magnetism in metastable fcc iron.

Authors:
;  [1]; ;  [1]
  1. Department of Physics and Astronomy, Iowa State University, Ames, Iowa 50011 (United States)
Publication Date:
OSTI Identifier:
22483066
Resource Type:
Journal Article
Journal Name:
Applied Physics Letters
Additional Journal Information:
Journal Volume: 106; Journal Issue: 24; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0003-6951
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; BCC LATTICES; COOLING; EQUILIBRIUM; EUTECTICS; FCC LATTICES; IRON; IRON BORIDES; LIQUIDS; MAGNETISM; STABILIZATION; TIME RESOLUTION; X-RAY DIFFRACTION

Citation Formats

Quirinale, D. G., Rustan, G. E., Kreyssig, A., Goldman, A. I., and Ames Laboratory, U.S. DOE, Iowa State University, Ames, Iowa 50011. Synergistic stabilization of metastable Fe{sub 23}B{sub 6} and γ-Fe in undercooled Fe{sub 83}B{sub 17}. United States: N. p., 2015. Web. doi:10.1063/1.4922802.
Quirinale, D. G., Rustan, G. E., Kreyssig, A., Goldman, A. I., & Ames Laboratory, U.S. DOE, Iowa State University, Ames, Iowa 50011. Synergistic stabilization of metastable Fe{sub 23}B{sub 6} and γ-Fe in undercooled Fe{sub 83}B{sub 17}. United States. https://doi.org/10.1063/1.4922802
Quirinale, D. G., Rustan, G. E., Kreyssig, A., Goldman, A. I., and Ames Laboratory, U.S. DOE, Iowa State University, Ames, Iowa 50011. Mon . "Synergistic stabilization of metastable Fe{sub 23}B{sub 6} and γ-Fe in undercooled Fe{sub 83}B{sub 17}". United States. https://doi.org/10.1063/1.4922802.
@article{osti_22483066,
title = {Synergistic stabilization of metastable Fe{sub 23}B{sub 6} and γ-Fe in undercooled Fe{sub 83}B{sub 17}},
author = {Quirinale, D. G. and Rustan, G. E. and Kreyssig, A. and Goldman, A. I. and Ames Laboratory, U.S. DOE, Iowa State University, Ames, Iowa 50011},
abstractNote = {Previous investigations of undercooled liquid Fe{sub 83}B{sub 17} near the eutectic composition have found that metastable crystalline phases, such as Fe{sub 23}B{sub 6}, can be formed and persist down to ambient temperature even for rather modest cooling rates. Using time-resolved high-energy x-ray diffraction on electrostatically levitated samples of Fe{sub 83}B{sub 17}, we demonstrate that the Fe{sub 23}B{sub 6} metastable phase and fcc γ-Fe grow coherently from the undercooled Fe{sub 83}B{sub 17} liquid and effectively suppress the formation of the equilibrium Fe{sub 2}B + bcc α-Fe phases. The stabilization of γ-Fe offers another opportunity for experimental investigations of magnetism in metastable fcc iron.},
doi = {10.1063/1.4922802},
url = {https://www.osti.gov/biblio/22483066}, journal = {Applied Physics Letters},
issn = {0003-6951},
number = 24,
volume = 106,
place = {United States},
year = {2015},
month = {6}
}

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    Works referencing / citing this record:

    Characterization of eutectic borides formed during solidification of borated stainless steel 304B4
    journal, August 2019