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Original title:
Microstructure and microhardness evaluation for NiCrAlY materials manufactured by spark plasma sintering and plasma spraying
Authors: Hulka, Iosif ; Mušálek, Radek ; Lukáč, František ; Klečka, Jakub ; Chráska, Tomáš
Document type: Papers
Conference/Event: 14th International Conference on Local Mechanical Properties, Praha (CZ), 20191106
Year: 2020
Language: eng
Abstract: 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.
Keywords: Microhardness; Microstructure; NiCrAlY; Plasma spraying; Spark plasma sintering
Project no.: GA19-14339S (CEP)
Funding provider: GA ČR
Host item entry: Acta Polytechnica CTU Proceedings, ISBN 978-80-01-06735-2, ISSN 2336-5382
Note: Související webová stránka: https://ojs.cvut.cz/ojs/index.php/APP/article/view/6662/5719
Institution: Institute of Plasma Physics AS ČR (web)
Document availability information: Fulltext is available at the institute of the Academy of Sciences.
Original record: https://hdl.handle.net/11104/0333366
Permalink: http://www.nusl.cz/ntk/nusl-508689
The record appears in these collections:
Research > Institutes ASCR > Institute of Plasma Physics
Conference materials > Papers
Authors: Hulka, Iosif ; Mušálek, Radek ; Lukáč, František ; Klečka, Jakub ; Chráska, Tomáš
Document type: Papers
Conference/Event: 14th International Conference on Local Mechanical Properties, Praha (CZ), 20191106
Year: 2020
Language: eng
Abstract: 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.
Keywords: Microhardness; Microstructure; NiCrAlY; Plasma spraying; Spark plasma sintering
Project no.: GA19-14339S (CEP)
Funding provider: GA ČR
Host item entry: Acta Polytechnica CTU Proceedings, ISBN 978-80-01-06735-2, ISSN 2336-5382
Note: Související webová stránka: https://ojs.cvut.cz/ojs/index.php/APP/article/view/6662/5719
Institution: Institute of Plasma Physics AS ČR (web)
Document availability information: Fulltext is available at the institute of the Academy of Sciences.
Original record: https://hdl.handle.net/11104/0333366
Permalink: http://www.nusl.cz/ntk/nusl-508689
The record appears in these collections:
Research > Institutes ASCR > Institute of Plasma Physics
Conference materials > Papers
Record created 2022-09-28, last modified 2023-03-28