Ion-plasma nitriding of machines and tools parts instrumental steels

Abstract

1 Naberezhnye Chelny institute (branch) of KFU, Naberezhnye Chelny, Russia 2 Ford Sollers holding LLC, Naberezhnye Chelny, Russia 3 LLC "Saturn", Naberezhnye Chelny, Russia E-mail:irmaris@yandex.ru, rafisih88@mail.ru Abstract.Here introduced features of formation diffusion bond during ion nitriding in glow discharge plasma in gaseous mediums (mixture of nitrogen and argon). It is shown, that argon existing in saturated medium changes the nitriding process kinetics and the phase composition of the outer zone. Here presented investigation results on ion-plasma nitriding of instrumental steels, focused on microstructure and tool areas phase composition change, operating in most difficult conditions.

Development of a combined technology for hardening the surface layer of steel 38Cr2MoAl

“…Also, the inability of obtaining sufficiently large depths of the diffusion layer is a serious drawback of ion-plasma nitriding. This factor is connected with technological features of the nitriding process [13].…”