Laser gas-assisted nitriding of steel residual stress analysis

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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)

• Publication Type: Article / Article
• Volume: 62 Issue: 4
• Publication Date: 2010
• Doi Number: 10.1108/00368791011051071
• Journal Name: INDUSTRIAL LUBRICATION AND TRIBOLOGY
• Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
• Page Numbers: pp.214-223
• Hacettepe University Affiliated: Yes

Abstract

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.