2008
DOI: 10.3139/146.101692
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Wear behavior of plasma nitrided AISI 420 stainless steel

Abstract: Martensitic AISI 420 stainless steel was plasma nitrided using a DC N2 – H2 pulsed discharge, after thermal treatment at two different tempering temperatures. Sliding wear behavior was determined by means of a ball-on-disk tribometer at room temperature and without lubrication. Wear volume was calculated from the information provided by an optical profilometer and wear scars were analyzed by Scanning Electron Microscopy. The results indicated that the nitrided samples exhibited improved wear resistance when co… Show more

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Cited by 19 publications
(8 citation statements)
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“…The nitriding facility was designed and constructed at the UTN and it has been described elsewhere [13] but it is, essentially, a steel chamber where the samples are placed in cavities over the cathode and a cylinder acts as the anode of a DC pulsed discharge. Current density, voltage bias and partial pressures of work gases can be adjusted, and temperature can be set and controlled separately by a heat resistance array around the cathode and a PID controller.…”
Section: Methodsmentioning
confidence: 99%
“…The nitriding facility was designed and constructed at the UTN and it has been described elsewhere [13] but it is, essentially, a steel chamber where the samples are placed in cavities over the cathode and a cylinder acts as the anode of a DC pulsed discharge. Current density, voltage bias and partial pressures of work gases can be adjusted, and temperature can be set and controlled separately by a heat resistance array around the cathode and a PID controller.…”
Section: Methodsmentioning
confidence: 99%
“…The surface is comprised of plastic deformation zones as the result of removal of loose particles in the matrix and coldwelding of fragments over the surface. In lubricated conditions, wear resistance of the surface is increased, and the friction mechanism is transformed to abrasive wear [35][36]. In dry wear condition, 303 and 304 steel specimens exhibited a mixed wear regime which is composed of adhesive and abrasive wear behaviors.…”
Section: Optical Microscope Investigationsmentioning
confidence: 99%
“…The mechanical properties are very similar even for completely disparate preparation methods, e.g. including plasma nitriding, low energy ion implantation or PIII plasma immersion ion implantation [6][7][8][9].…”
Section: Introductionmentioning
confidence: 95%