Abstract
In advanced 9 to 12 pct Cr steels, the Cr equivalent is used as a measure to check the formation of δ-ferrite. In the present analysis, 29 alloys of varying composition were vacuum induction melted, and the amounts of δ-ferrite were measured in as-tempered conditions. Based on this and previous results on 9 to 12 pct Cr steels, a new equation for the Cr equivalent is proposed and correlated with the amount of δ-ferrite formation. Results indicate that the new Cr equivalent equation shows better correlation than previous equations and predicts the amount of δ-ferrite formed reasonably well.
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Ryu, S.H., Yu, J. A new equation for the Cr equivalent in 9 to 12 pct Cr steels. Metall Mater Trans A 29, 1573–1578 (1998). https://doi.org/10.1007/s11661-998-0080-7
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DOI: https://doi.org/10.1007/s11661-998-0080-7