Surface hardening for 38MoCrAl09 steel using fluidized bed nitriding
The paper is based an nitriding experiments made in a fluidized bed laboratory furnace.Fluidization was obtained in a steel refractory retort by solid granular (burned fire clay) and fluid (mixture Air Styler of ammonia and nitrogen).Heating system is based on indirect electrical method.Heating transfer from furnace to retort is high and is determi