Fabrication of thermal plasma sprayed NiTi coatings possessing functional properties

0547870 - FZÚ 2022 RIV CH eng J - Journal Article
Samal, Sneha Manjaree - Tyc, Ondřej - Čížek, Jan - Klečka, Jakub - Lukáč, František - Molnárová, Orsolya - de Prado, Esther - Weiss, Zdeněk - Kopeček, Jaromír - Heller, Luděk - Šittner, Petr - Chráska, Tomáš
Fabrication of thermal plasma sprayed NiTi coatings possessing functional properties.
Coatings. Roč. 11, č. 5 (2021), č. článku 610. E-ISSN 2079-6412
R&D Projects: GA ČR(CZ) GA20-14114S; GA MŠMT(CZ) EF16_019/0000760; GA MŠMT LM2018110
Grant - others:OP VVV - SOLID21(XE) CZ.02.1.01/0.0/0.0/16_019/0000760
Institutional support: RVO:68378271 ; RVO:61389021
Keywords : NiTi * shape memory alloy * thick coating * thermal plasma spraying * functional behavior
OECD category: Condensed matter physics (including formerly solid state physics, supercond.); Materials engineering (UFP-V)
Impact factor: 3.236, year: 2021
Method of publishing: Open access

Thick NiTi shape memory alloy coatings (300–500 µm) were produced on graphite and AISI 304 substrates by radio frequency inductively-coupled plasma spray technology (RF-ICP) from feedstock NiTi powders. Their microstructure as well as chemical and phase composition were characterized and a methodology for the characterization of functional shape memory properties of the thick coatings was developed. The coatings exhibited cubic to monoclinic martensitic transformation and shape memory effect. The presented results prove that NiTi coatings with functional thermomechanical properties can be easily produced on structural materials by RF-ICP. Further optimization will be needed to prepare NiTi coatings with better microstructural and chemical homogeneity.

Permanent Link: http://hdl.handle.net/11104/0324041