Structural heat-resistant β-NiAl + γ′-Ni3Al alloys of the Ni–Al–Co system: II. Oxidation
- Autores: Povarova K.1, Drozdov A.1, Bazyleva O.2, Morozov A.1, Antonova A.1, Arginbaeva E.2, Alad’ev N.1, Sirotinkin V.1
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Afiliações:
- Baikov Institute of Metallurgy and Materials Science
- VIAM—All-Russia Institute of Aviation Materials
- Edição: Volume 2017, Nº 9 (2017)
- Páginas: 706-710
- Seção: Article
- URL: https://journals.rcsi.science/0036-0295/article/view/171684
- DOI: https://doi.org/10.1134/S0036029517090129
- ID: 171684
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Resumo
The heat resistance of the β + γ′ alloys with 28–29 at % Al, 10 at % Co, and 0.25–0.4 at % Re in air at 1300°C is studied. The structures of the scale and the subscale layers that form during oxidation for 2 and 100 h due to the interdiffusion of aluminum and oxygen are investigated. Alloying with 10 at % Co is shown to increase the heat resistance in the absence of chromium and a low content of the elements tht are active to oxygen (La). The heat resistance of the β + γ′ NIAL1 and NIAL2 alloys at 1300°C, which was estimated from the surface unit mass increment in 100 h, is at level of the heat resistance of the γ′ + γ VKNA (VIN) alloys at 1200–1250°C.
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Sobre autores
K. Povarova
Baikov Institute of Metallurgy and Materials Science
Autor responsável pela correspondência
Email: povarova@imet.ac.ru
Rússia, Leninskii pr. 49, Moscow, 119991
A. Drozdov
Baikov Institute of Metallurgy and Materials Science
Email: povarova@imet.ac.ru
Rússia, Leninskii pr. 49, Moscow, 119991
O. Bazyleva
VIAM—All-Russia Institute of Aviation Materials
Email: povarova@imet.ac.ru
Rússia, ul. Radio 17, Moscow, 103767
A. Morozov
Baikov Institute of Metallurgy and Materials Science
Email: povarova@imet.ac.ru
Rússia, Leninskii pr. 49, Moscow, 119991
A. Antonova
Baikov Institute of Metallurgy and Materials Science
Email: povarova@imet.ac.ru
Rússia, Leninskii pr. 49, Moscow, 119991
E. Arginbaeva
VIAM—All-Russia Institute of Aviation Materials
Email: povarova@imet.ac.ru
Rússia, ul. Radio 17, Moscow, 103767
N. Alad’ev
Baikov Institute of Metallurgy and Materials Science
Email: povarova@imet.ac.ru
Rússia, Leninskii pr. 49, Moscow, 119991
V. Sirotinkin
Baikov Institute of Metallurgy and Materials Science
Email: povarova@imet.ac.ru
Rússia, Leninskii pr. 49, Moscow, 119991
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