(Received 23 March 2004; accepted 9 June 2004)
Published Online: 01 January 2005
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We have developed a theoretical and experimental model for imaging heat-treated steel hardness profiles. An analytical solution to the heat equation is presented as a guide to measurements, which are focused on prospecting both mechanical parameters and thermal local properties, indexed on the carbon-iron ratio along treatment depth. We tried to prove that the existence of a simple correlation between treated steel mechanical and thermal characteristics rises only beyond a critical carburizing depth. Comparison between several results allowed us to evaluate this critical depth and establish a simple correlation between treated steel HV microhardness and thermal diffusivity, in a particular case of surface hardening treatment.
Laboratoire Photovaltaique et Matériaux Semiconducteurs (Ecole Nationale d‘Ingénieurs de TUNIS)/E.S.S.T., Mahdia, Tunisia
Stock #: JTE11685