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Bauer, Peter-Philipp and Swadzba, Radoslaw and Klamann, Lisa Marie and Laska, Nadine (2022) Aluminum diffusion inhibiting properties of Ti5Si3 at 900 °C and its beneficial properties on Al-rich oxidation protective coatings on γ-TiAl. Corrosion Science. Elsevier. doi: 10.1016/j.corsci.2022.110265. ISSN 0010-938X.
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Official URL: https://www.sciencedirect.com/science/article/abs/pii/S0010938X22001834
Abstract
The goal of the paper was to elucidate the effect of a Ti5Si3 interlayer on the high temperature oxidation resistance of the Al-Ti coatings. During cyclic oxidation at 900 °C for 1000 1 h cycles, the coating system with a Ti5Si3 interlayer maintained the Al-rich phases of TiAl3 and TiAl2 in the Al-Ti top layer around 5–10 times longer compared to a coating without intermediate barrier layer. Moreover, the substrate alloying elements (Nb and Cr) are suggested to have a noticeably positive impact on the reduced Al diffusion due to segregations at the grain boundaries in the Ti5Si3 interlayer.
| Item URL in elib: | https://elib.dlr.de/191188/ | ||||||||||||||||||||
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| Document Type: | Article | ||||||||||||||||||||
| Title: | Aluminum diffusion inhibiting properties of Ti5Si3 at 900 °C and its beneficial properties on Al-rich oxidation protective coatings on γ-TiAl | ||||||||||||||||||||
| Authors: |
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| Date: | 29 March 2022 | ||||||||||||||||||||
| Journal or Publication Title: | Corrosion Science | ||||||||||||||||||||
| Refereed publication: | Yes | ||||||||||||||||||||
| Open Access: | Yes | ||||||||||||||||||||
| Gold Open Access: | No | ||||||||||||||||||||
| In SCOPUS: | Yes | ||||||||||||||||||||
| In ISI Web of Science: | Yes | ||||||||||||||||||||
| DOI: | 10.1016/j.corsci.2022.110265 | ||||||||||||||||||||
| Publisher: | Elsevier | ||||||||||||||||||||
| ISSN: | 0010-938X | ||||||||||||||||||||
| Status: | Published | ||||||||||||||||||||
| Keywords: | Ti5Si3 interlayer Al diffusion Diffusion barrier γ-TiAl alloys Oxidation protective Al-Ti coating Mass gain analysis Magnetron sputtering | ||||||||||||||||||||
| HGF - Research field: | Aeronautics, Space and Transport | ||||||||||||||||||||
| HGF - Program: | Aeronautics | ||||||||||||||||||||
| HGF - Program Themes: | Clean Propulsion | ||||||||||||||||||||
| DLR - Research area: | Aeronautics | ||||||||||||||||||||
| DLR - Program: | L CP - Clean Propulsion | ||||||||||||||||||||
| DLR - Research theme (Project): | L - Advanced Materials and New Manufacturing Technologies | ||||||||||||||||||||
| Location: | Köln-Porz | ||||||||||||||||||||
| Institutes and Institutions: | Institute of Materials Research > High Temperature and Functional Coatings Institute of Materials Research > Metallic Structures and Hybrid Material Systems | ||||||||||||||||||||
| Deposited By: | Bauer, Peter-Philipp | ||||||||||||||||||||
| Deposited On: | 12 Dec 2022 10:03 | ||||||||||||||||||||
| Last Modified: | 30 Mar 2024 03:00 |
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