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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Petrov, R. H. | Madrid |
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| Bih, L. |
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| Casati, R. |
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| Kočí, Jan | Prague |
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| Azam, Siraj |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Ma, Kan
University of Birmingham
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (6/6 displayed)
- 2024Nanocrystalline Y2O3-modified metal matrix composite coatings with improved resistance to thermocyclic oxidation and V2O5-induced type II hot corrosioncitations
- 2023Chromium-based bcc-superalloys strengthened by iron supplementscitations
- 2023The effect of thermal post-processing treatment on laser powder bed fusion processed NiMnSn-based alloy for magnetic refrigerationcitations
- 2023Compact A15 Frank-Kasper nano-phases at the origin of dislocation loops in face-centred cubic metalscitations
- 2023Impact of micro-alloying in ion-irradiated nickel: From the inhibition of point-defect cluster diffusion by thermal segregation to the change of dislocation loop naturecitations
- 2022Impact of the local microstructure fluctuations on radiation-induced segregation in dilute Fe-Ni and Ni-Ti model alloys: a combined modeling and experimental analysiscitations
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article
The effect of thermal post-processing treatment on laser powder bed fusion processed NiMnSn-based alloy for magnetic refrigeration
Abstract
This study investigates the effects of heat treatment (HT) time (one, two, and three weeks) on the microstructure and magnetocaloric effect (MCE) of laser powder bed fusion (LPBF) NiMnSn alloys. Increasing the HT time improves chemical homogeneity, and decreases the local misorientation imparted by the LPBF process. This is also associated with an enhancement in the maximum magnetic entropy change (ΔS<sub>m</sub>) values around the martensitic transformation temperature (T<sub>M</sub>), which increases from 0.2 J kg<sup>−1</sup>K<sup>−1</sup> to 0.45 J kg<sup>−1</sup>K<sup>−1</sup> under 1 T applied magnetic field. However, theΔS<sub>m</sub>of the one-week HTed sample around the curie temperature (T<sub>c</sub>) (0.90 J kg<sup>−1</sup>K<sup>−1 </sup>at 315 K) is slightly lower than the two weeks and three weeks HTed samples (0.99 J kg<sup>−1</sup>K<sup>−1</sup> at 320 K, 0.94 J kg<sup>−1</sup>K<sup>−1</sup> at 320 K), respectively.