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Systematic trends of transformation temperatures and crystal structure of Ni-Mn-Ga-Fe-Cu alloys
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SYSNO ASEP 0534545 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Systematic trends of transformation temperatures and crystal structure of Ni-Mn-Ga-Fe-Cu alloys Author(s) Armstrong, Andrew (FZU-D)
Nilsén, Frans (FZU-D) ORCID
Rameš, Michal (FZU-D) RID, ORCID
Colman, R.H. (CZ)
Veřtát, Petr (FZU-D) RID, ORCID
Kmječ, T. (CZ)
Straka, Ladislav (FZU-D) ORCID
Müllner, P. (US)
Heczko, Oleg (FZU-D) RID, ORCIDNumber of authors 9 Source Title Shape Memory and Superelasticity - ISSN 2199-384X
Roč. 6, č. 1 (2020), s. 97-106Number of pages 10 s. Language eng - English Country CH - Switzerland Keywords Ni-Mn-Ga-Fe-Cu alloys ; transformation temperature ; MSM alloys Subject RIV BM - Solid Matter Physics ; Magnetism OECD category Condensed matter physics (including formerly solid state physics, supercond.) R&D Projects EF16_019/0000760 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) GA16-00043S GA ČR - Czech Science Foundation (CSF) LM2018096 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) Method of publishing Limited access Institutional support FZU-D - RVO:68378271 UT WOS 000518079600002 EID SCOPUS 85081572594 DOI 10.1007/s40830-020-00273-3 Annotation Here we report a systematic research on effects of Fe and Cu upon properties relevant for the magnetic shape memory effect of Ni–Mn–Ga ferromagnetic shape memory alloys. Fe and Cu were identified as elements with potential synergism to increase the martensite transformation temperature of Ni–Mn–Ga magnetic shape memory (MSM) alloys. Eighteen Ni–Mn–Ga–Fe–Cu alloys with different systematic trends in substituting the ternary elements with Cu and Fe have been investigated. We found a method to describe the effectiveness of Ni, Mn, and Cu upon raising the martensitic transformation temperature, lowering the saturation magnetization, and varying the Curie temperature. We find the martensite transformation temperature most influenced by the Ni content, followed by Mn, with a smaller effect of Cu. The saturation magnetization decreases with similar coefficients for Mn and Cu alloying. Workplace Institute of Physics Contact Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579 Year of Publishing 2021 Electronic address https://doi.org/10.1007/s40830-020-00273-3
Number of the records: 1