Autre titre | Oxidation and Hot Corrosion in Na2SO4–10%V2O5 of Ni–17Cr–6Al–0.5Y and Ni–16Cr–5.7Al–0.47Y–5Si MCrAly Alloys at 700°C |
---|
DOI | Trouver le DOI : https://doi.org/10.1179/cmq.1991.30.2.125 |
---|
Auteur | Rechercher : Lambert, P.; Rechercher : Champagne, B.1; Rechercher : Arseneault, B. |
---|
Affiliation | - Conseil national de recherches du Canada
|
---|
Format | Texte, Article |
---|
Résumé | A standard NiCrAlY alloy and a silicon enriched alloy were produced in order to study the effect of the addition of silicon on their oxidation and hot corrosion behaviour. The chemical compositions (wt%) of these alloys were Ni–17Cr–6Al–0.5Y and Ni–16Cr–5.7 Al–0.47Y–5Si. The oxide types formed at 700°C were studied and characterized. An outer layer of NiO developed on the surface of the standard alloy whereas a thin Al₂O₃ oxide scale occurred on the Si enriched alloy. To simulate the corrosive environment inside a diesel engine, hot corrosion testing was carried out at 700°C on specimens that were plasma-spray coated with a corrosive mixture of Na₂SO₄–10wt% V₂O₅. The development of a protective oxide barrier is considerably affected by the corrosive coating, particularly in the silicon enriched alloy. |
---|
Date de publication | 1991-04-01 |
---|
Maison d’édition | Taylor and Francis |
---|
Dans | |
---|
Langue | anglais |
---|
Publications évaluées par des pairs | Oui |
---|
Exporter la notice | Exporter en format RIS |
---|
Signaler une correction | Signaler une correction (s'ouvre dans un nouvel onglet) |
---|
Identificateur de l’enregistrement | 2a5b7984-b47d-4b3f-accb-a0e46a597756 |
---|
Enregistrement créé | 2020-04-08 |
---|
Enregistrement modifié | 2020-05-08 |
---|