Effects of biaxial stress on martensitic steels

Reference:

Tomka, G. J., Murray, N., Gore, J. G., Earl, J., Squire, P. T. and Maylin, M. G., 2001. Effects of biaxial stress on martensitic steels. Journal of Magnetism and Magnetic Materials, 226, pp. 980-982.

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Official URL:

http://dx.doi.org/10.1016/S0304-8853(00)01166-5

Abstract

Magnetisation measurements have been made using biaxial-stress apparatus on a thin martensitic-steel disc. To an approximation, the effect of tension in the field direction (Sx) has an equivalent effect on the magnetic properties to a perpendicular compression (−Sy), so that the effective stress, Seff=Sx−Sy. Departures from this relationship may be due to changes in coercivity with orientation of effective easy axes. A reversal mechanism more like coherent rotation or nucleation rather than pinning can account for these deviations.

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