Sun, S., Bai, J., Gu, J. et al. (7 more authors) (2024) Extraordinary mechanical properties and room-temperature magnetocaloric effects in spark plasma sintered all-d-metal Ni-Co-Mn-Ti alloy. Journal of Alloys and Compounds, 976. 173406. ISSN 0925-8388
Abstract
The all-d-metal Ni-Co-Mn-Ti Heusler alloy is a promising candidate for magnetic refrigeration application because of its considerable magnetocaloric effect and excellent mechanical properties. In this study, the influence of powder particle size on the martensitic transformation, magnetic and mechanical properties of Ni37Co13Mn34Ti16 spark plasma sintered samples have been investigated. It was found that the martensite transformation temperature was shifted to a higher value, while the mechanical properties decreased significantly with an increase in particle size. The sintered sample (S1) with a particle size of 0–15 μm exhibited enhanced characteristics such as thermal effect, magnetic and mechanical properties. The S1 martensitic transformation temperature occurred near ambient temperature, and the sample exhibited the maximum magnetic entropy changes as high as 37.53 J·kg−1·K−1 under a 5 T magnetic field. Moreover, the associated compressive fracture stress and strain were 2129 MPa and 27.78%, respectively, representing an 88.6% and 104.3% increase relative to the as-cast sample.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2024 The Authors. Except as otherwise noted, this author-accepted version of a journal article published in Journal of Alloys and Compounds is made available via the University of Sheffield Research Publications and Copyright Policy under the terms of the Creative Commons Attribution 4.0 International License (CC-BY 4.0), which permits unrestricted use, distribution and reproduction in any medium, provided the original work is properly cited. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/ |
Keywords: | Ni-Co-Mn-Ti all-d-metal Heusler alloy; Spark plasma sintering; Martensitic transformation; Magnetocaloric effect; Mechanical properties |
Dates: |
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Institution: | The University of Sheffield |
Academic Units: | The University of Sheffield > Faculty of Engineering (Sheffield) > Department of Materials Science and Engineering (Sheffield) |
Depositing User: | Symplectic Sheffield |
Date Deposited: | 02 May 2024 08:44 |
Last Modified: | 02 May 2024 08:44 |
Status: | Published |
Publisher: | Elsevier BV |
Refereed: | Yes |
Identification Number: | 10.1016/j.jallcom.2023.173406 |
Related URLs: | |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:212201 |