Number of the records: 1
Towards the additive manufacturing of Ni-Mn-Ga complex devices with magnetic field induced strain
- 1.
SYSNO ASEP 0565341 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Towards the additive manufacturing of Ni-Mn-Ga complex devices with magnetic field induced strain Author(s) Ituarte, I.F. (FI)
Nilsén, Frans (FZU-D) ORCID
Nadimpalli, V.K. (DK)
Salmi, M. (FI)
Lehtonen, J. (FI)
Hannula, S.-P. (FI)Number of authors 6 Article number 102485 Source Title Additive Manufacturing. - : Elsevier - ISSN 2214-8604
Roč. 49, Jan (2022)Number of pages 13 s. Language eng - English Country NL - Netherlands Keywords additive manufacturing ; smart materials ; magnetic shape-memory alloys ; 4D printing ; MFIS 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) Method of publishing Open access Institutional support FZU-D - RVO:68378271 UT WOS 000730905300003 EID SCOPUS 85120413336 DOI 10.1016/j.addma.2021.102485 Annotation Laser powder bed fusion (L-PBF) is used to produce foam-like Ni-Mn-Ga with tailored microscale and mesoscale features. Ni50-Mn28.2-Ga21.8 (at%) powder was gas atomised and processed in an L-PBF system with a range of energy density from 26.24 and 44.90 J/mm3. We characterised microscale and mesoscale properties, such as the chemical composition, crystal structure, magnetisation measurements, density, and porosity measurements as a function of process parameters, in a systematic design of experiment. Preliminary research on macroscale properties included tensile testing and magnetic field induced strain (MFIS) measurements. Results show how controlling process parameters allows tailoring the Ni-Mn-Ga polycrystalline microstructure. Hence, obtaining twinned martensitic structures with a predominant orientation going across the visible grain boundaries. All the processed samples showed a 56 Am2/kg magnetisation level, close to Ni-Mn-Ga 10 M single crystals. Workplace Institute of Physics Contact Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579 Year of Publishing 2023 Electronic address https://hdl.handle.net/11104/0336890
Number of the records: 1