Determining Ms temperature on a AISI D2 cold work tool steel using magnetic Barkhausen noise

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

Resultado de la investigación: Contribución a una revistaArtículorevisión exhaustiva

12 Citas (Scopus)

Resumen

The use of Magnetic Barkhausen Noise (MBN) as a experimental method for measuring the martensite start (Ms) temperature was explored, using as model system a cold-work tool steel (AISI D2) austenitized at a very high temperature (1473 K), so as to transform in sub-zero temperatures. The progress of the transformation was also followed with electrical resistance measurements, optical microscopy and scanning electron microscopy. Both MBN and resistivity measurements showed a change near 230 K during cooling, corresponding to the Ms temperature, as compared with 245 K, estimated with Andrews empirical equation applied to the austenite composition calculated using ThermoCalc.

Idioma originalInglés
Páginas (desde-hasta)S726-S730
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 of CNPq, Dr. J.R.C. Guimarães is grateful acknowledged for the valuable discussions.

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