Mechanical features optimization for oxide films growing on alloy

Mechanical features have been investigated in the case of α - Cr 2 O 3 thermal oxide films growing on NiCr 30 alloy in the temperature range 700–900 °C. From previous experimental results obtained by Raman spectroscopy and giving the growth stress evolution in α - Cr 2 O 3 films, and based on a modelling of the system, both asymptotic forms and an optimization procedure have been developed which give values for the mechanical characteristic parameters of the system and also its evolution with the oxidation temperature.