Aluminide coating on Mar-M246 nickel superalloy by halide activated pack cementation (HAPC) (2021)
- Authors:
- USP affiliated authors: NUNES, CARLOS ANGELO - EEL ; CHAIA, NABIL - EEL
- Unidade: EEL
- DOI: 10.1016/j.surfcoat.2021.126999
- Subjects: ANÁLISE TÉRMICA; NÍQUEL; LIGAS REFRATÁRIAS
- Keywords: Ni-based superalloys; Thermodynamic analysis; Halide activated pack cementation; Aluminizing; Mar-M246; High temperature oxidation
- Agências de fomento:
- Language: Inglês
- Abstract: Nickel based superalloys are widely applied in high temperatures systems because they have excellent mechanical properties. However their use over long period can lead to excessive degradation oxidation and corrosion. Protective aluminum-based coatings increase the oxidation resistance of these alloys which may be achieved using the Halide Activated Pack Cementation (HAPC) technique. In this study, the Mar-M246 nickel superalloy was coated with aluminum rich intermetallic layers, obtained by the HAPC process at 700 °C, 800 °C, 900 °C and 1000 °C, for treatment duration of 9 h. Thermodynamic calculations have been carried out previously to determine process parameters, such as the choice of the activator and the suitable temperature. The microstructural characterization of the coatings was performed by SEM and EDS analysis. The coatings obtained were uniform and homogeneous in terms composition, and free of failures and cracks containing Ni2Al3 and/or NiAl3 phases. The efficiency of the coatings to enhance the oxidation resistance of the substrate was proved through the oxidation tests carried out at 1000 °C for about 240 h in which there was the formation of protective Al2O3 scale.
- Imprenta:
- Publisher: Elsevier
- Publisher place: Manchester-UK
- Date published: 2021
- Source:
- Título: Surface & coatings technology
- ISSN: 0257-8972
- Volume/Número/Paginação/Ano: v.411, art. n. 126999, p.1-9, 2021
- Este periódico é de assinatura
- Este artigo é de acesso aberto
- URL de acesso aberto
- Cor do Acesso Aberto: bronze
- Licença: publisher-specific-oa
-
ABNT
GLÓRIA, Raphael Felca et al. Aluminide coating on Mar-M246 nickel superalloy by halide activated pack cementation (HAPC). Surface & coatings technology, v. 411, n. art. 126999, p. 1-9, 2021Tradução . . Disponível em: https://doi.org/10.1016/j.surfcoat.2021.126999. Acesso em: 27 dez. 2025. -
APA
Glória, R. F., Chaia, N., Cruz, A. W. da, Alckmin, L. B., Nunes, C. A., & Rodrigues, G. (2021). Aluminide coating on Mar-M246 nickel superalloy by halide activated pack cementation (HAPC). Surface & coatings technology, 411( art. 126999), 1-9. doi:10.1016/j.surfcoat.2021.126999 -
NLM
Glória RF, Chaia N, Cruz AW da, Alckmin LB, Nunes CA, Rodrigues G. Aluminide coating on Mar-M246 nickel superalloy by halide activated pack cementation (HAPC) [Internet]. Surface & coatings technology. 2021 ;411( art. 126999): 1-9.[citado 2025 dez. 27 ] Available from: https://doi.org/10.1016/j.surfcoat.2021.126999 -
Vancouver
Glória RF, Chaia N, Cruz AW da, Alckmin LB, Nunes CA, Rodrigues G. Aluminide coating on Mar-M246 nickel superalloy by halide activated pack cementation (HAPC) [Internet]. Surface & coatings technology. 2021 ;411( art. 126999): 1-9.[citado 2025 dez. 27 ] Available from: https://doi.org/10.1016/j.surfcoat.2021.126999 - High Temperature Oxidation Behavior of Conventional and Nb-Modified MAR-M246 Ni-Based Superalloy
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Informações sobre o DOI: 10.1016/j.surfcoat.2021.126999 (Fonte: oaDOI API)
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