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High temperature oxidation of a commercial Cr‐Mn austenitic steel in air
Author(s) -
Gesmundo F.,
De Asmundis C.,
Battilana G.,
Ruedl E.
Publication year - 1987
Publication title -
materials and corrosion
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.487
H-Index - 55
eISSN - 1521-4176
pISSN - 0947-5117
DOI - 10.1002/maco.19870380705
Subject(s) - chromia , manganese , chromium , austenite , metallurgy , materials science , high temperature corrosion , corrosion , alloy , microstructure
The oxidation of an austenitic steel containing 18% chromium and 12.3% manganese at 800‐1000°C in air occurs at a slower rate than that of a steel containing 9.5% chromium and 17.5% manganese. However, the rate of corrosion of this 18% chromium alloy is still large in comparison with the case of formation of a continuous chromia scale at the base of the scale layer. This result is attributed to the negative effect of the manganese on the thermodynamic stability of Cr 2 O 3 .