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Selective oxidation of high Si, Mn and Al steel grades during recrystallization annealing and steel/Zn reactivity
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2004
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EngineeringSevere Plastic DeformationSteel/zn ReactivityOxidation ResistanceMechanical EngineeringHigh SiChemical EngineeringCorrosionMaterials ScienceMaterials EngineeringSelective OxidationCrystalline DefectsSynthetic SteelsMetallurgical InteractionSolid MechanicsDefect FormationAmorphous MetalMicrostructureApplied PhysicsHigh Aluminium SteelsZinc Wettability DefectsMetal Processing
The mechanism of zinc wettability defects on high silicon and high aluminium annealed steels has been studied by transmission electron microscopy of specimens prepared from synthetic steels recrystallized on a simulator. Wettabillity defects on high silicon steels are associated with a continuous amorphous silica layer that forms during annealing. On high aluminium steels, wettability defects result from a continuous crystallized alumina layer thicker than 6 to 8 nm.