Analysis of microconstituents in a Hastelloy C-276 superalloy exposed to corrosión

Authors

  • Daniel Montero-Reyes Universidad de Moa

Keywords:

corrosion, superalloy, microstructural analysis

Abstract

The Hastelloy C-276 superalloy used for the manufacture of centrifugal pump impellers when subjected to unfavorable external conditions can cause the appearance of the corrosion phenomenon, such is the case of the samples studied by Montero 2022 belonging to a centrifugal pump in charge of transporting leached liquor. The microstructural analysis of the superalloy was carried out considering the material without being exposed to working conditions and another one removed from service due to corrosion. It is observed that the largest area on the structure corresponds to dendritic austenite, with 76.89 %, which is consistent with the matrix of the superalloy C-276, ferrite occupies 18.33 % and, finally, the presence of precipitates with 4.79 %. The austenite content is associated with Ni, a major element and ganmagen, which makes it a structure with these characteristics.

Downloads

Download data is not yet available.

References

American Society for Metals (1980). Metal progress databook: Materials and process Engineering. https://books.google.com.cu/books/about/metal_progress:databook.html?d=eWiOwgEACAAJ&redie_esc=y.

Ángeles-Lezama, E. C., Rodríguez-Lugo, V., Sánchez-Castillo, A. Camacho-González, M.A., Salinas-Rodríguez, E. & Herrera-Carvajal, A. (2021). Estudio teórico comparativo de Superaleaciones base Níquel: AlNi3 y ScNi3. Publicación Semestral Pädi, 9(Especial 2), 237–244. https://doi.org/10.29057/icbi.v9iEspecial2.7986.

Dhananchezian, M. (2019). Study the machinability characteristics of Nicked based Hastelloy C-276 under cryogenic cooling. Measurement, 136, 694-702. https://www.sciencedirect.com/science/article/abs/pii/S0263224118312181.

Fernández-Columbié, T., Reyes-de la Cruz, J., Rodríguez-González, I. & Suárez-Torres, L. (2021). Cavitation wear on centrifugal pump impellents made from Hastelloy C-276 alloy. IJRDO Journal of Mechanical And Civil Engineering, 7(5), 19-24.

Joubert, Y. (2019). Incidencia de la burbuja del licor lixiviado en el desgaste por cavitación de una bomba centrífuga. (Trabajo de diploma, Universidad de Moa). https://ninive.ismm.edu.cu/hamdle/123456789/3739.

Rebak, R., Dillman, J., Crook, P. & Shawber, C. (2001). Corrosion behavior of nickel alloys in wet hydrofluoric acid. Materials and corrosión, 52(4), 289-297.

Reyna, J. F. (2005). Soldabilidad de superaleaciones base níquel (In–738) para aplicación en álabes de turbina ruston de primero y segundo paso. (Tesis de Maestría, Universidad Autónoma de Coahuila).

Sturla, A. & Castellano, E. (1951). Metalografía microscópica: guía práctica de metalografía microscópica y macrografía. Alsina.

Tomacen, Y., Fernández, T., Suárez, L. & Pérez, E. (2022). Tratamiento térmico de una superaleación base níquel. Ciencia & Futuro, 12(2), 181-193. https://revista.ismm.edu.cu/ index.php/revistacyf/article/view/2171.

Published

2024-03-01

How to Cite

Montero-Reyes, D. (2024). Analysis of microconstituents in a Hastelloy C-276 superalloy exposed to corrosión. Ciencia & Futuro, 14(1), 72–81. Retrieved from https://revista.ismm.edu.cu/index.php/revistacyf/article/view/2487

Issue

Section

Ciencia Universitaria

Similar Articles

You may also start an advanced similarity search for this article.