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  Novel multicomponent B2-ordered aluminides: Compositional design, synthesis, characterization, and thermal stability

Mohan Muralikrishna, G., Carmel Mary Esther, A., Guruvidyathri, K., Watermeyer, P., Liebscher, C., Kulkarni, K. N., et al. (2020). Novel multicomponent B2-ordered aluminides: Compositional design, synthesis, characterization, and thermal stability. Metals, 10(11): 1411, pp. 1-19. doi:10.3390/met10111411.

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metals-10-01411-v2.pdf (Publisher version), 14MB
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2020
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Elsevier B.V., All rights reserved.

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 Creators:
Mohan Muralikrishna, G.1, 2, Author
Carmel Mary Esther, A.2, Author
Guruvidyathri, K.3, Author
Watermeyer, Philipp4, Author              
Liebscher, Christian4, Author              
Kulkarni, Kaustubh N.5, Author
Wilde, Gerhard2, Author              
Divinski, Sergiy V.6, Author              
Murty, Budaraju Srinivasa1, 7, Author
Affiliations:
1Department of Metallurgical and Materials Engineering, Indian Institute of Technology Madras, Chennai, 600036, India, ou_persistent22              
2Institut für Materialphysik, Westfälische Wilhelms-Universität Münster, Wilhelms, Germany, ou_persistent22              
3School of Engineering Sciences and Technology, University of Hyderabad, Gachibowli, Hyderabad, 502285, India, ou_persistent22              
4Advanced Transmission Electron Microscopy, Structure and Nano-/ Micromechanics of Materials, Max-Planck-Institut für Eisenforschung GmbH, Max Planck Society, ou_1863399              
5Department of Materials Science and Engineering, Indian Institute of Technology, Kanpur, 208016, Uttar Pradesh, India, ou_persistent22              
6Institute for Materials Physics, University of Münster, Münster, Germany, ou_persistent22              
7Indian Institute of Technology Hyderabad, Kandi, 502285, India, ou_persistent22              

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 Abstract: For the first time, multicomponent alloys belonging to a B2-ordered single phase were designed and fabricated by melting route. The design concept of high entropy alloys is applied to engineering the transition metal sublattice of binary B2 aluminide. The equiatomic substitution of transition metal elements in the Ni sublattice of binary AlNi followed to produce Al(CoNi), Al(FeNi), Al(CoFe), Al(CoFeNi), Al(CoFeMnNi), and Al(CoCuFeMnNi) multicomponent alloys. CALculation of PHAse Diagrams (CALPHAD) approach was used to predict the phases in these alloys. X-ray diffraction and transmission electron microscopy were used to confirm the B2 ordering in the alloys. Thermal stability of the B2 phase in these alloys was demonstrated by prolonged heat treatments at 1373 K and 1073 K up to 200 h. © 2020 by the author. Licensee MDPI, Basel, Switzerland.

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Language(s): eng - English
 Dates: 2020-11
 Publication Status: Published in print
 Pages: -
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 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.3390/met10111411
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Title: Metals
  Other : Metals
Source Genre: Journal
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Publ. Info: Basel : MDPI AG
Pages: 19 Volume / Issue: 10 (11) Sequence Number: 1411 Start / End Page: 1 - 19 Identifier: ISSN: 2075-4701
CoNE: https://pure.mpg.de/cone/journals/resource/metals