Abstract
An attempt is made to relate the oxide scale growth and the stresses developed by oxidation. After a brief review of the origins of oxide growth stresses and of the techniques of stress measurements, the parameters which act on both the oxide growth and the oxidation stresses are detailed. Many parameters are mentioned: the oxide thickness, the oxidation rate, the growth direction (by preferential anionic or cationic diffusion), the metallic surface treatment, the impurity incorporation in the scale coming from the substrate or the atmosphere, the substrate composition and mechanical characteristics, the possible microstructural evolutions in the scale or in the substrate, the oxidation conditions, etc. Among all these parameters, it can be seen that the differences in both expansion coefficient and Young's modulus of the oxide and its substrate are important parameters in the development of stress during oxidation.
MST/989
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