Materials Science and Technology · 2006 · 24 citations · 4 references
Natural SciencesMaterials EngineeringMaterials ScienceMaterials CharacterizationMetallic MaterialsMetallurgyAlloysGrain Structure FormationPlastic DeformationPlasticityStainless SteelsSteel MaterialsCompressive LoadsElectron Backscatter DiffractionElectron Backscatter Diffraction AnalysisFerritic Stainless SteelsFerritic SteelsMetallurgical Microstructure AnalysisMicrostructureSteel Microstructure
In the present work, three types of ferritic stainless steel sheets AISI 430A (16%Cr), AISI 430E (16%Cr, 0·36%Nb) and AISI 434 (16%Cr, 1%Mo), known to display different ridging behaviours, were characterised in both microstructure and texture using optical metallography and electron backscatter diffraction techniques. It was concluded that surface microridging is a result of the differential plastic behaviour of {111}〈 uvw〉 and {001}〈 uvw〉 grain colonies existing in the sheet; severe ridging (undulations) is a consequence of through thickness texture and microstructure inhomogeneities that lead to grain buckling under internal compressive stresses.
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