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The failure of iron oxide scales at growth temperature under tensile stress
Journal de Physique IV : Proceedings
Acoustic Emission (AE) was used to study the fracture of oxide grown on mild steel. Samples were oxidised and mechanically deformed in air at 550 O C using strain rates of -and lo-' s-' in a bend test furnace having a ceramic 4-point bend jig. The results were compared with earlier observations made on oxides deformed at room temperature. In both cases equidistant cracks formed and the crack spacing decreased with increasing oxide thickness in agreement with a model based on interfacial slip.doi:10.1051/jp4:1993996 fatcat:oc7qhcw63rhq3hnqovacszjsei