Comparison of the Pitting Corrosion Resistance of Bainite and Martensite in Fe-0.4C-1.5Si-2Mn Steel
نویسندگان
چکیده
Specimens with different microstructures (bainite, as-quenched martensite, and tempered martensite) were fabricated using a Fe-0.4C-1.5Si-2Mn steel sheet, the pitting corrosion resistances of these compared. Retained austenite was barely detected in X-ray diffraction analysis. The Vickers hardness values ordered as (high) martensite > ≈ bainite 325°C-austempered specimen 425°C-austempered (low). resistance each microstructure evaluated by potentiodynamic polarization boric-borate buffer solutions containing NaCl (pH 8.0) under naturally aerated conditions. lower active dissolution rates determined to provide superior resistance.
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ژورنال
عنوان ژورنال: Isij International
سال: 2023
ISSN: ['0915-1559', '1347-5460']
DOI: https://doi.org/10.2355/isijinternational.isijint-2023-135