Isothermal martensitic transformation in a 12Cr-9Ni-4Mo-2Cu stainless steel in applied magnetic fields

San Martín, D. and Aarts, K. W.P. and Rivera-Díaz-del-Castillo, P. E.J. and van Dijk, N. H. and Brück, E. and van der Zwaag, S. (2008) Isothermal martensitic transformation in a 12Cr-9Ni-4Mo-2Cu stainless steel in applied magnetic fields. Journal of Magnetism and Magnetic Materials, 320 (10). pp. 1722-1728. ISSN 0304-8853

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Abstract

This work concerns an in situ study of the isothermal formation of martensite in a stainless steel under the influence of magnetic fields up to 9 T at three different temperatures (213, 233 and 253 K). It is shown that the presence of a constant applied magnetic field promotes the formation of martensite significantly. The activation energy for the nucleation of martensite has been derived using a semi-empirical kinetic model. The experimental results have been analyzed using the Ghosh and Olson model. While this model describes the time and field dependences of the experimental data well, the thermal frictional energy and the defect size values are much lower than those expected from earlier work.

Item Type:
Journal Article
Journal or Publication Title:
Journal of Magnetism and Magnetic Materials
Uncontrolled Keywords:
/dk/atira/pure/subjectarea/asjc/3100/3104
Subjects:
?? AUSTENITEMAGNETIC FIELDMARTENSITEPHASE TRANSFORMATIONSSTAINLESS STEELELECTRONIC, OPTICAL AND MAGNETIC MATERIALSCONDENSED MATTER PHYSICS ??
ID Code:
125481
Deposited By:
Deposited On:
24 May 2018 13:38
Refereed?:
Yes
Published?:
Published
Last Modified:
17 Sep 2023 02:17