Experimental Study of the Cr-Hf-Nb System: Liquidus Projection and 1200 °C Isothermal Section (2020)
- Authors:
- USP affiliated authors: COELHO, GILBERTO CARVALHO - EEL ; NUNES, CARLOS ANGELO - EEL
- Unidade: EEL
- DOI: 10.1007/s11669-020-00838-w
- Assunto: DIAGRAMA DE TRANSFORMAÇÃO DE FASE
- Keywords: Cr-hf-nb system; intermetallics; microstructure; phase stability
- Agências de fomento:
- Language: Inglês
- Abstract: Phase equilibria data from ternary Cr-Nb-X (X = Hf, Ta, Ti, Zr) systems are relevant to the development of Niobium-silicide based composites for use in jet engines. Such systems present at several temperatures a pseudo-binary of Cr2Nb-Cr2X Laves phases. This work presents the experimentally determined liquidus projection and the 1200 °C isothermal section for the Cr-Hf-Nb system based on microstructural characterization of as-cast and heat-treated alloys. The microstructural characterization using x-ray diffractometry, scanning electron microscopy and electron probe microanalysis showed four eutectic-type monovariant reactions and two class II invariant reactions in the liquidus projection. The 1200 °C isothermal section showed complete solubility between Nb and Hf in (C15) phase and one three phase equilibria field.
- Imprenta:
- Source:
- Título: Journal of phase equilibria and diffusion
- ISSN: 15477037
- Volume/Número/Paginação/Ano: v., n. , p.1-19, 2020
- Este periódico é de assinatura
- Este artigo é de acesso aberto
- URL de acesso aberto
- Cor do Acesso Aberto: green
- Licença: other-oa
-
ABNT
GIGOLOTTI, João Carlos Jânio et al. Experimental Study of the Cr-Hf-Nb System: Liquidus Projection and 1200 °C Isothermal Section. Journal of phase equilibria and diffusion, n. , p. 1-19, 2020Tradução . . Disponível em: https://doi.org/10.1007/s11669-020-00838-w. Acesso em: 03 dez. 2025. -
APA
GIGOLOTTI, J. C. J., Silva, A. A. A. P., COELHO, G. C., Nunes, C. A., & Joubert, J. -M. (2020). Experimental Study of the Cr-Hf-Nb System: Liquidus Projection and 1200 °C Isothermal Section. Journal of phase equilibria and diffusion, ( ), 1-19. doi:10.1007/s11669-020-00838-w -
NLM
GIGOLOTTI JCJ, Silva AAAP, COELHO GC, Nunes CA, Joubert J-M. Experimental Study of the Cr-Hf-Nb System: Liquidus Projection and 1200 °C Isothermal Section [Internet]. Journal of phase equilibria and diffusion. 2020 ;( ): 1-19.[citado 2025 dez. 03 ] Available from: https://doi.org/10.1007/s11669-020-00838-w -
Vancouver
GIGOLOTTI JCJ, Silva AAAP, COELHO GC, Nunes CA, Joubert J-M. Experimental Study of the Cr-Hf-Nb System: Liquidus Projection and 1200 °C Isothermal Section [Internet]. Journal of phase equilibria and diffusion. 2020 ;( ): 1-19.[citado 2025 dez. 03 ] Available from: https://doi.org/10.1007/s11669-020-00838-w - Experimental Study of the Cr-Hf-Nb System: Liquidus Projection and 1200 °C Isothermal Section
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Informações sobre o DOI: 10.1007/s11669-020-00838-w (Fonte: oaDOI API)
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