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Muñoz-Saldaña, J. und Valencia-Ramirez, A. und Castillo-Perea, L.A. und Díaz-De la Torre, S. und Caceres-Diaz, L.A. und Alvarado Orozco, J.M. und Giraldo Betancur, A.L. und Schulz, Uwe (2021) Oxidation behavior of dense Yttrium doped B2-NiAl bulk material fabricated by ball milling self-propagating high-temperature synthesis and densified by spark plasma sintering. Surface and Coatings Technology, 421, Seite 127448. Elsevier. doi: 10.1016/j.surfcoat.2021.127448. ISSN 0257-8972.
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Offizielle URL: http://dx.doi.org/10.1016/j.surfcoat.2021.127448
Kurzfassung
The effect of Y additions on the oxidation behavior in furnace cyclic tests and its correlation with thermogravimetric analysis of sintered NiAl alloys is here reported. Part of the samples got an EB-PVD 7YSZ coating on top. Highly ordered B2-NiAl intermetallic powder was obtained by self-propagating high-temperature synthesis (SHS) during ball milling of elemental precursors with Y additions in amounts between 0 and 1.5 at.%. The SHS process was optimized to identify the combination of milling parameters that leads to a sharp increase in the reaction temperature for intermetallic synthesis. The tested samples consisted of NiAlY buttons densified by spark plasma sintering (SPS). Furnace cyclic testing of the SPSbuttons at 1100 °C showed high resistance to spallation of the 7YSZ top-coat and a significant decrease in its oxide growth kinetics attributed to Y-additions. Contents below 0.5 at.% Y reduce the oxidation kinetics of NiAl exposed to thermal cycles at 1100 oC, while higher Y contents are favorable for a longer TBC life
| elib-URL des Eintrags: | https://elib.dlr.de/144914/ | ||||||||||||||||||||||||||||||||||||
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| Dokumentart: | Zeitschriftenbeitrag | ||||||||||||||||||||||||||||||||||||
| Titel: | Oxidation behavior of dense Yttrium doped B2-NiAl bulk material fabricated by ball milling self-propagating high-temperature synthesis and densified by spark plasma sintering | ||||||||||||||||||||||||||||||||||||
| Autoren: |
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| Datum: | 25 Juni 2021 | ||||||||||||||||||||||||||||||||||||
| Erschienen in: | Surface and Coatings Technology | ||||||||||||||||||||||||||||||||||||
| Referierte Publikation: | Ja | ||||||||||||||||||||||||||||||||||||
| Open Access: | Ja | ||||||||||||||||||||||||||||||||||||
| Gold Open Access: | Nein | ||||||||||||||||||||||||||||||||||||
| In SCOPUS: | Ja | ||||||||||||||||||||||||||||||||||||
| In ISI Web of Science: | Ja | ||||||||||||||||||||||||||||||||||||
| Band: | 421 | ||||||||||||||||||||||||||||||||||||
| DOI: | 10.1016/j.surfcoat.2021.127448 | ||||||||||||||||||||||||||||||||||||
| Seitenbereich: | Seite 127448 | ||||||||||||||||||||||||||||||||||||
| Verlag: | Elsevier | ||||||||||||||||||||||||||||||||||||
| ISSN: | 0257-8972 | ||||||||||||||||||||||||||||||||||||
| Status: | veröffentlicht | ||||||||||||||||||||||||||||||||||||
| Stichwörter: | EB-PVD, NiAl, lifetime, thermal barrier coating | ||||||||||||||||||||||||||||||||||||
| HGF - Forschungsbereich: | Luftfahrt, Raumfahrt und Verkehr | ||||||||||||||||||||||||||||||||||||
| HGF - Programm: | Luftfahrt | ||||||||||||||||||||||||||||||||||||
| HGF - Programmthema: | Umweltschonender Antrieb | ||||||||||||||||||||||||||||||||||||
| DLR - Schwerpunkt: | Luftfahrt | ||||||||||||||||||||||||||||||||||||
| DLR - Forschungsgebiet: | L CP - Umweltschonender Antrieb | ||||||||||||||||||||||||||||||||||||
| DLR - Teilgebiet (Projekt, Vorhaben): | L - Werkstoffe und Herstellverfahren | ||||||||||||||||||||||||||||||||||||
| Standort: | Köln-Porz | ||||||||||||||||||||||||||||||||||||
| Institute & Einrichtungen: | Institut für Werkstoff-Forschung > Hochtemperatur-und Funktionsschutzschichten | ||||||||||||||||||||||||||||||||||||
| Hinterlegt von: | Schulz, Prof. Dr Uwe | ||||||||||||||||||||||||||||||||||||
| Hinterlegt am: | 09 Nov 2021 09:07 | ||||||||||||||||||||||||||||||||||||
| Letzte Änderung: | 12 Okt 2023 03:00 |
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