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  Superior tensile properties of 1C-CoCrFeMnNi high-entropy alloy additively manufactured by selective laser melting

Park, J.-M., Choe, J., Kim, J. G., Bae, J. W., Moon, J., Yang, S., et al. (2020). Superior tensile properties of 1C-CoCrFeMnNi high-entropy alloy additively manufactured by selective laser melting. Materials Research Letters, 8(1), 1-7. doi:10.1080/21663831.2019.1638844.

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Superior tensile properties of 1%C-CoCrFeMnNi high-entropy alloy additively manufactured by selective laser melting.pdf (Publisher version), 993KB
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Superior tensile properties of 1%C-CoCrFeMnNi high-entropy alloy additively manufactured by selective laser melting.pdf
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2019
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 Creators:
Park, Jeong-Min1, Author              
Choe, Jungho2, Author
Kim, Jung Gi3, 4, Author              
Bae, Jae Wung4, Author              
Moon, Jongun5, Author              
Yang, Sangsun6, Author
Kim, Kyung Tae6, Author
Yu, Ji-Hun6, 7, Author
Kim, Hyoung Seop8, Author              
Affiliations:
1Department of Materials Science and Engineering, Pohang University of Science and Technology (POSTECH), Pohang, 37673, Republic of Korea, ou_persistent22              
2Powder & Ceramic Division, Korea Institute of Materials Science (KIMS), Changwon, Republic of Korea, ou_persistent22              
3Alloys for Additive Manufacturing, Project Groups, Microstructure Physics and Alloy Design, Max-Planck-Institut für Eisenforschung GmbH, Max Planck Society, ou_2117289              
4Department of Materials Science and Engineering, Center for High-Entropy Alloys, POSTECH, Pohang, 37673, South Korea, ou_persistent22              
5Department of Materials Science and Engineering, Pohang University of Science and Technology (POSTECH), Pohang, South Korea, ou_persistent22              
6Powder & Ceramic Division, Korea Institute of Materials Science (KIMS), Changwon, South Korea, ou_persistent22              
7Metal 3D Printing Convergence Research Team, Korean Institute of Machinery & Materials (KIMM), Daejeon, South Korea, ou_persistent22              
8Department of Materials Science and Engineering, Center for High Entropy Alloys, Pohang University of Science and Technology (POSTECH), Pohang, 37673, South Korea, ou_persistent22              

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 Abstract: CoCrFeMnNi high-entropy alloys containing 1 at carbon (C-HEAs) were additively manufactured using selective laser melting (SLM). Superior tensile properties of the as-built C-HEA (to previously reported ones) were achieved by utilizing multiple strengthening mechanisms (i.e. solid solution, grain refinement, dislocation density, and nano-precipitation) by this new manufacturing method. In particular, the SLM process could allow to maximize the strengthening effect of carbon addition to HEAs via finely distributed nano-carbides at the boundaries of solidification cellular structure.  This work will open a new window to utilize the SLM process for enhanced mechanical properties of HEAs with great potential. © 2019, © 2019 The Author(s). Published by Informa UK Limited, trading as Taylor Francis Group.

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Language(s): eng - English
 Dates: 2020-01-02
 Publication Status: Published in print
 Pages: -
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 Table of Contents: -
 Rev. Type: -
 Identifiers: DOI: 10.1080/21663831.2019.1638844
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Title: Materials Research Letters
  Other : Mat. Res. Lett.
Source Genre: Journal
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Publ. Info: London : Taylor & Francis
Pages: - Volume / Issue: 8 (1) Sequence Number: - Start / End Page: 1 - 7 Identifier: Other: 2166-3831
CoNE: https://pure.mpg.de/cone/journals/resource/2166-3831