Numéro
J. Phys. Colloques
Volume 49, Numéro C8, Décembre 1988
Proceedings of the International Conference on Magnetism
Page(s) C8-113 - C8-114
DOI https://doi.org/10.1051/jphyscol:1988843
Proceedings of the International Conference on Magnetism

J. Phys. Colloques 49 (1988) C8-113-C8-114

DOI: 10.1051/jphyscol:1988843

MAGNETIC PROPERTIES OF METASTABLE 304 STAINLESS STEEL WITH BCC STRUCTURE

J. Childress1, S. H. Liou2 et C. L. Chien1

1  Department of Physics and Astronomy, The Johns Hopkins University, Baltimore, Maryland 21218, U.S.A
2  AT & Bell Labs, Murray Hill, NJ 07974, U.S.A.


Abstract
Ordinary 304 stainless steel has a fcc structure and is non-magnetic at room temperature. By using a vapor quenching method, we have fabricated single-phase metastable bcc 304 stainless steel which is strongly ferromagnetic with a magnetization of 130 emu/g and a Curie temperature in excess of 550 °C. Upon subsequent annealing above 550°C, the metastable bcc state transforms back into the usual non-magnetic fcc phase. The changes in the magnetic properties and the structure of these films during the transformation are examined.