Surface Characterization of Through Cage Plasma Nitriding on the Surface Properties of Low Alloy Steel

Authors

Department of Mechanical Engineering,Azad University

Abstract

DIN 1.6580 low alloy steel has been plasma nitrided using the novel Through Cage (TC)
plasma nitriding technique. Experimental results show that the thickness of the compound layer increases
with temperature, as well as nitrogen percent, in the gas mixture, that an increase in screen hole size has
no e ect on the compound layer thickness under screen top lid conditions and, also, that an increase in
screen hole size at the same temperature results in an increase in the thickness of the compound layer
under iron plate top lid conditions. The results of micro-hardness measurements indicate that surface
hardness increases with temperature, as well as nitrogen volume, in the treatment gas. It was also found
that the hardness values obtained using a screen top lid are relatively greater than those obtained using
an iron plate top lid.

Keywords

Scientia Iranica
Volume 17, Issue 4 - Serial Number 4
Transactions on Mechanical Engineering (B)
July 2010

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