Microstructure and oxidation performance of undoped and rhodium-doped aluminide coatings on Mar-M247 superalloy

• Autorzy: Zagula-Yavorska Maryana

Identyfikatory

DOI

10.1016/j.acme.2019.04.001

• Języki publikacji: EN

Abstrakty

EN

A rhodium modification of aluminide coating on Mar-M247 superalloy was performed by electrodepositing of 0.5 mm thick rhodium layer followed by chemical vapour aluminizing. It was found that rhodium dissolves in the aluminide coating. Oxidation resistance of undoped coating is worse than the rhodium-doped one (higher weight gain). The constant kp value confirms the favourable modification effect of rhodium on resistance against oxidation of aluminide coatings. Rhodium reduces the oxide growth rate three times. Moreover, it dissolves in the NiAl rather than in the g0-Ni3Al during oxidation. The degradation rate from NiAl to g0-Ni3Al and Al2O3 layer growth has decreased.

Słowa kluczowe

EN

oxidation performance; rhodium modification; chemical vapour aluminizing; weight gain; constant kp value

PL

utlenianie; aluminiowanie; modyfikacja

• Wydawca: Springer ; Wrocław University of Science and Technology
• Czasopismo: Archives of Civil and Mechanical Engineering
• Rocznik: 2019
• Tom: Vol. 19, no. 3
• Strony: 832--841
• Opis fizyczny: Bibliogr. 30 poz., rys., wykr.

Twórcy

autor

Zagula-Yavorska Maryana

• Rzeszow University of Technology, Department of Materials Science, Faculty of Mechanical Engineering and Aeronautics, al. Powstanców Warszawy 12, 35-959 Rzeszów, Poland

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Uwagi

PL

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2020)