Abstract
A series of Fe–12Cr–C stainless steels have been rapidly solidified from the melt in a clean atmosphere. Although there is no significant increase in carbide solubility in these alloys, the martensitic-start temperature is depressed. In the presence of molybdenum and vanadium isolated grain-boundary regions of δ-ferrite are observed. These resultant structures are correlated with the prevalent solidification conditions and compared with similar alloys heat treated in a conventional manner. After heat treatment, the normal carbide precipitation sequence is followed. However, the small regions of δ-ferrite can readily be removed by a simple high-temperature treatment.
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