Název: Microstructure and microhardness evaluation for NiCrAlY materials manufactured by spark plasma sintering and plasma spraying
Autoři: Hulka, Iosif ; Mušálek, Radek ; Lukáč, František ; Klečka, Jakub ; Chráska, Tomáš
Typ dokumentu: Příspěvky z konference
Konference/Akce: 14th International Conference on Local Mechanical Properties, Praha (CZ), 20191106
Rok: 2020
Jazyk: eng
Abstrakt: NiCrAlY deposited by different thermal spraying methods is commonly used as the bond coat material in thermal barrier coatings (TBCs). In the present study, two experimental coatings were deposited by hybrid water stabilized plasma (WSP-H) and radio frequency inductively coupled plasma (RF-ICP) using the same feedstock powder. Spark plasma sintering (SPS) was used to manufacture a compact NiCrAlY from the same feedstock powder as a reference material. Microstructure, internal oxidation, phase characterization and quantification of the mechanical behaviour in terms of microhardness were studied. The investigations clearly showed microstructural and mechanical differences between the NiCrAlY samples manufactured by different plasma technologies. The results confirmed that SPS and RF-ICP provide dense structures with no oxides due to the fabrication under protective atmosphere and similar mechanical properties. Thus, RF-ICP may be used for deposition of very dense coatings with microstructure and hardness comparable to compacted materials prepared by SPS.
Klíčová slova: Microhardness; Microstructure; NiCrAlY; Plasma spraying; Spark plasma sintering
Číslo projektu: GA19-14339S (CEP)
Poskytovatel projektu: GA ČR
Zdrojový dokument: Acta Polytechnica CTU Proceedings, ISBN 978-80-01-06735-2, ISSN 2336-5382
Poznámka: Související webová stránka: https://ojs.cvut.cz/ojs/index.php/APP/article/view/6662/5719

Instituce: Ústav fyziky plazmatu AV ČR (web)
Informace o dostupnosti dokumentu: Dokument je dostupný v příslušném ústavu Akademie věd ČR.
Původní záznam: https://hdl.handle.net/11104/0333366

Trvalý odkaz NUŠL: http://www.nusl.cz/ntk/nusl-508689


Záznam je zařazen do těchto sbírek:
Věda a výzkum > AV ČR > Ústav fyziky plazmatu
Konferenční materiály > Příspěvky z konference