Evaluation of electric and magnetic signals in heat-resistant HP alloys using scanning probe microscopy

Arenas, Monica P.;Pacheco, Clara J.;Fonseca, Ana B.;Queiroz, Fabio S.;Pereira, Gabriella R.;et.al.
(2019) Journal of Magnetism and Magnetic Materials — Vol. 491, n° 165578, p. 165578 (2019)

Files

1-s20-S0304885319308637-main.pdf
  • Open Access
  • Adobe PDF
  • 2.65 MB
Download

Details

Authors
  • Arenas, Monica P.LNDC/COPPE & PEMM/COPPE, Federal University of Rio de Janeiro,, Rio de Janeiro, Brazil
    Author
  • Pacheco, Clara J.LNDC/COPPE, Rio de Janeiro, Brazil
    Author
  • Fonseca, Ana B.LNDC/COPPE & PEMM/COPPE, Federal University of Rio de Janeiro,, Rio de Janeiro, Brazil
    Author
  • Queiroz, Fabio S.PEMM/COPPE, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
    Author
  • Nysten, Bernardorcid-logoUCLouvain
    Author
  • Pereira, Gabriella R.LNDC/COPPE & PEMM/COPPE, Federal University of Rio de Janeiro,, Rio de Janeiro, Brazil
    Author
Show more
Abstract
HP steels are commonly used in steam reforming tubes, which are exposed to harsh operational conditions causing microstructural changes. These microstructural changes cause variations in the magnetic properties, which can be measured by different techniques. This work aims at the measurement of the magnetic and electric variations in HP-Nb modified alloys with different chemical composition using scanning probe microscopy (SPM) techniques. The results show that, despite the microstructural change due to variation of chemical composition, samples with aging state I exhibit a magnetic response at the carbides boundary, while for advanced aging states, the magnetic response is not evidenced.
Affiliations

Citations

  • APA
  • Chicago
  • FWB

Arenas, M. P., Pacheco, C. J., Fonseca, A. B., Queiroz, F. S., Gaudencio, M., Eckstein, C. B., Nogueira, L., De Almeida, L. H., Rebello, J. M. A., Nysten, B., & Pereira, G. R. (2019). Evaluation of electric and magnetic signals in heat-resistant HP alloys using scanning probe microscopy. Journal of Magnetism and Magnetic Materials, 491(165578), 165578. https://doi.org/10.1016/j.jmmm.2019.165578 (Original work published 2019)