Laser gas-assisted nitriding of steel residual stress analysis

Yilbas B., Arif A. F. M., KARATAŞ C., Aleem B. J. A., Tabet N.

INDUSTRIAL LUBRICATION AND TRIBOLOGY, vol.62, no.4, pp.214-223, 2010 (SCI-Expanded) identifier identifier


Purpose - The laser nitriding process is involved with high temperature heating and high cooling rates. This, in turn, results in high levels of thermal stresses in the heated region. Moreover, the residual stress in the heated region remains high after the completion of the heating process, which limits the application of the laser nitriding process. The purpose of this paper is to investigate thermal stresses development and residual stress levels in the nitrided region.