In this paper the mechanisms of ion nitriding are discussed, particular attention being paid to
dc diode nitriding. Recent trends in the analysis of the mechanisms of dc diode nitriding are …

Nas duas últimas décadas tem-se observado um grande avanço em técnicas para
modificação da superfície (1-10). Essas técnicas fazem uso de plasmas, lasers, feixes de …

Austenitic stainless steel AISI 316 has been nitrided by low-temperature rf plasmas
containing various nitrogen–hydrogen gas mixtures, in order to study the effect of hydrogen …

This paper describes the role of hydrogen in titanium nitriding using an N2–H2 gas mixture
plasma, which is empirically known to enhance the rate of nitriding. The nitrided titanium …

AISI 302/304 austenitic stainless steels have been nitrided in N2 and N2–H2 glow discharge
plasmas powered by a high frequency dc pulsed power supply. In a pure nitrogen plasma …

Low pressure pulsed DC N 2–H 2 plasmas with admixtures of CH 4 used for active screen
plasma nitriding (ASPN) have been studied by time resolved Langmuir probe and optical …

Optical emission spectroscopy (OES) is a non-intrusive diagnostic technique, widely used to
study different kinds of plasmas. In the present work, a locally resolved OES technique was …

The resolved emission spectrum of an open-air atmospheric pressure plasma torch was
recorded with a 0.5 m spectrometer and CCD camera. The plasma emission under these …

Titanium substrates were nitrided in a pot type arc plasma furnace in the temperature range
1400–1500° C under different gas (Ar, N2, H2) mixture plasma for 15min each. The nitrided …

This study compares the nitriding efficiency of a low-pressure pure-nitrogen rf plasma for the
materials AISI-316 stainless steel, 99.8% iron and the low-alloy steels AISI 4140 and En41B …