The influence of deposition technique of aluminide coatings on oxidation resistance of different nickel superalloys

2020 ◽  
Vol 33 ◽  
pp. 1746-1751
Author(s):  
Marek Goral ◽  
Kamil Ochal ◽  
Tadeusz Kubaszek ◽  
Marcin Drajewicz
2007 ◽  
Vol 68 (5-6) ◽  
pp. 243-251 ◽  
Author(s):  
Zhaolin Zhan ◽  
Yedong He ◽  
Deren Wang ◽  
Wei Gao

Metals ◽  
2017 ◽  
Vol 7 (12) ◽  
pp. 548 ◽  
Author(s):  
Maryana Zagula-Yavorska ◽  
Małgorzata Wierzbińska ◽  
Jan Sieniawski

2009 ◽  
Vol 203 (16) ◽  
pp. 2337-2342 ◽  
Author(s):  
Zhaolin Zhan ◽  
Yedong He ◽  
Li Li ◽  
Hongxi Liu ◽  
Yongnian Dai

2015 ◽  
Vol 227 ◽  
pp. 361-364
Author(s):  
Ryszard Filip ◽  
Maryana Zagula-Yavorska ◽  
Maciej Pytel ◽  
Jolanta Romanowska ◽  
Mateusz Maliniak ◽  
...  

The aim of the present work was to determine the influence of chemical composition of the protective coating on the oxidation resistance of the protected alloy. Zirconium modified and nonmodified aluminide coatings were deposited on the MAR M200 nickel superalloy by the CVD method. The oxidation tests were conducted at 1100°C into 23 hour in the air. The chemical composition (EDS) analysis was performed. The kinetic of oxidation of zirconium modified and nonmodified aluminide coatings was similar. Oxides inclusions called pegs were observed on the surface of oxidized aluminide coating. HfO2 oxide is more stable than Al2O3 oxide, hafnium atoms can replace aluminum atoms in Al2O3 oxides. This phenomena let to stabilize NiAl phase and increase of oxidation resistance of aluminide coating.


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