Detecting martensitic transformations using spontaneous magnetic emission (SME)

Hélio Goldenstein, Edgar Apaza Huallpa, J. Capó Sánchez, L. R. Padovese

Resultado de la investigación: Contribución a una revistaArtículorevisión exhaustiva

3 Citas (Scopus)

Resumen

Experiments exploring the Magnetic Barkhausen Noise (MBN) during the martensitic transformation led to the discovery of a novel phenomenon, here called "Spontaneous magnetic emission" (SME). This new phenomenon was identified while testing the hypothesis that there would be a Barkhausen Noise-like magnetic emission as a consequence of the movement of Bloch walls in the newly formed ferromagnetic martensite, as the nucleation and growth of Weiss magnetic domains followed the growth of martensite plates. The SME hypothesis was demonstrated experimentally in a Fe-Ni-C alloy, austenitic at room temperature, while being cooled to liquid nitrogen temperature.

Idioma originalInglés
Páginas (desde-hasta)S736-S740
PublicaciónJournal of Alloys and Compounds
Volumen577
N.ºSUPPL. 1
DOI
EstadoPublicada - 15 nov. 2013
Publicado de forma externa

Nota bibliográfica

Funding Information:
The authors acknowledge the financial support granted by CNPq ; Dr. J.R.C. Guimarães is gratefully acknowledged for the valuable discussions.

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