Lifetime extension of FeCrAlRE alloys in air: Potential roles of an enhanced Al-reservoir and surface pre-treatment
| Autor: | John Nicholls, R. Bachorczyk, A. Smith, H. Hattendorf, Dmitry Naumenko, D. Goossens, M. J. Bennett, R. Fordham, D. Britton, Nigel J. Simms, W. J. Quadakkers, V. Kochubey |
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| Rok vydání: | 2005 |
| Předmět: |
Cladding (metalworking)
Pre treatment Materials science Annealing (metallurgy) Mechanical Engineering Metallurgy Alloy Metals and Alloys General Medicine engineering.material Surfaces Coatings and Films Corrosion Lifetime extension Mechanics of Materials visual_art Materials Chemistry engineering Aluminium alloy visual_art.visual_art_medium Environmental Chemistry FOIL method |
| Zdroj: | Materials and Corrosion. 56:854-866 |
| ISSN: | 1521-4176 0947-5117 |
| DOI: | 10.1002/maco.200503916 |
| Popis: | Two novel approaches to extend the lifetimes of commercial FeCrAIRE alloys, such as Aluchrom YHf and Kanthal AF, for industrial usage have been developed by the CEC funded SMILER Project. These surface treatments either increased the available alloy Al reservoir by alloying, aluminising, or cladding/plating or preformed an α-Al 2 O 3 protective scale by gas annealing. An extensive series of evaluation testing in laboratory air, extending to either 3000 h or chemical failure whichever was shorter, has been undertaken at temperatures between 800° and 1300°C on alloy coupons in the form of both 50 μm thick foil or 1 mm thick sheet. This has been augmented by selected further exposures of surface treated near real-life components (fibre mat heater burners and alloy supports for automobile emission control catalysts). The results of all these evaluation tests are fully detailed in this paper and have established both the viability of these procedures and their range of technological applicability. |
| Databáze: | OpenAIRE |
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