Abstract
The mechanical behaviour and adhesion properties of thermal oxide scales are key issues for steel processing and long-term durability. This chapter aims at taking up the various aspects to be considered for such studies. The first part is devoted to a description of the origin of stress and stress quantification. Then, description of mechanical failure and damaging patterns of thermal oxide scales will be given. Finally, definitions of adhesion energy as well as quantitative methods to measure adhesion energy will be proposed. An appendix describing the hypotheses and the constitutive equations for plane stress analysis, which suits to oxide scales, is also given The purpose is enriched by references in particular to Alain Galerie’s co-workers’ publications.
Highlights
2.1.1 Growth Stresses Growth stresses happen during the isothermal part of the oxidation process
In the case of scale formation occurring by inward diffusion of oxygen, the molar volume ratio described by Pilling and Bedworth (Pilling-Bedworth Ratio, Pilling-Bedworth ratio (PBR)), may be first used to indicate the type of growth stress
This chapter reviews theoretical bases and experimental methods allowing appreciating mechanical behaviour of oxide scale thermally grown on stainless steel
Summary
Valérie Parry1,a*, Somrerk Chandra-ambhorn2,b, Thanasak Nilsonthi2,c and Muriel Braccini1,d.
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