Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1691631 | Vacuum | 2008 | 4 Pages |
Abstract
We present some results obtained from nitriding of AISI 304 stainless steel substrates. The process take place in an inductively coupled plasma discharge supplied by a â¼300 W source at 13.56 MHz in a 85% hydrogen and 15% nitrogen gas mixture. The samples, placed into a pyrex glass discharge chamber (3.5 cm diameter and 60 cm long) were biased by DC power from 0 to â300 V with respect to ground. The resulting hardness is a function of the increasing nitrogen concentration in the substrate and this, in turn, of the temperature which varied from 200 to 470 °C. After nitriding at â300 V, hardness values of 1790 HV under 10 g loads and of 632 HV for 300 g were measured. X-ray diffraction indicates that the expanded phase amplitude (γN) depends on the substrate temperature.
Related Topics
Physical Sciences and Engineering
Materials Science
Surfaces, Coatings and Films
Authors
R. Valencia-Alvarado, A. de la Piedad-Beneitez, J. de la Rosa-Vázquez, R. López-Callejas, S.R. Barocio, O.G. Godoy-Cabrera, A. Mercado-Cabrera, R. Peña-Eguiluz, A.E. Muñoz-Castro,