CARMEN PENELOPI PAPADATU, ANDREI VICTOR SANDU, MARIAN BORDEI, IOAN GABRIEL SANDU STUDY ON THE INFLUENCE OF THE TREATMENT IN MAGNETIC FIELD ON THE NITRIDED LAYER IN PLASMA These researches have been made in order to improve the mechanical properties of a Chromium–Molybdenum alloyed steel non-conventionally treated in a magnetic field. Through the thermo-magnetic treatments, applied before thermo-chemical treatment, the mechanical properties of this material have been improved, especially in the case of a great content of chromium. The hardness values of the superficial layers which have been obtained after a complex system of thermo-magnetic treatments followed by a thermo-chemical treatment, the superficial layers content and the behaviour of the steel at the wear through dry friction tests were used as criterion. The paper is a review of the researches from the last few years.
Keywords: magnetic field; thermo-magnetic treatments, nitriding layer