Nitruration par échange d'ions de l'acier rapide pour outils AISI M2

Ion nitriding of AISI M2 high speed tool steel

¹ Prof. Dr., Université de Kocaeli, Izmit, Kocaeli (Turquie)
² Ingénieur de Recherches, Université d’Istanbul, Istanbul (Turquie)
³ Ingénieur de Recherches, Tubitak Mam, Kocaeli (Turquie)

Abstract

In this study, AISI M2 high speed tool steel is austenized at 1200°C, cooled in air and then double tempered at 540°C. Hardened samples are hold at the ion nitriding furnace between 500-540°C for different times. Hardened and nitrided samples were investigated for the surface structures using X-ray, microstructure of nitride layers and the hardness measurements were done. The hardness of steel surface and diffusion depth increase due to the increasing of nitriding time.