Creep behavior of polycrystalline and single crystal Ni-based superalloys coated with Ta-containing NiCoCrAlY by high-velocity oxy-fuel spraying
| Autor: | Uwe Glatzel, Juan Muñoz-Saldaña, Rainer Völkl, Alma G. Mora-García, Mike Mosbacher, Julia Hastreiter |
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| Rok vydání: | 2020 |
| Předmět: |
010302 applied physics
Materials science Mechanical Engineering Metals and Alloys 02 engineering and technology Substrate (electronics) engineering.material 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences Corrosion Metal Superalloy Coating Creep Mechanics of Materials visual_art 0103 physical sciences engineering visual_art.visual_art_medium General Materials Science Crystallite Composite material 0210 nano-technology Single crystal |
| Zdroj: | Scripta Materialia. 178:522-526 |
| ISSN: | 1359-6462 |
| DOI: | 10.1016/j.scriptamat.2019.12.023 |
| Popis: | Creep behavior of coated superalloys is important since critical metallic parts operating at high temperature are functionalized to resist oxidation, corrosion, etc. Unfortunately, there is a lack of information about creep data of coated superalloys. Polycrystalline and single crystal Ni-based superalloys coated with Ta-containing NiCoCrAlY by high-velocity oxy-fuel spraying were creep tested at 980 °C under 150 MPa constant load in air to address the influence of substrate thickness on their creep strength behavior. The contribution of the coating to both superalloys creep resistance was found to be negligible. However, a superalloy thickness debit effect was observed and is discussed. |
| Databáze: | OpenAIRE |
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