Surface Phase Transformation in Austenitic Stainless Steel Induced by Cyclic Oxidation in Humidified Air
2015 (English)In: Corrosion Science, ISSN 0010-938X, E-ISSN 1879-0496, Vol. 100, 524-534 p.Article in journal (Refereed) Published
The formation of α’ martensite at the surface of an AISI 304 stainless steel subjected to cyclic heating in humidified air is reported. The α’ martensite formed during the cooling part of the cyclic tests due to local depletion of Cr and Mn and transformed back to austenite when the temperature again rose to 650 °C. The size of the α’ martensite region increased with increasing number of cycles. Thermodynamical simulations were used as basis for discussing the formation of α’ martensite. The effect of the α’ martensite on corrosion is also discussed.
Place, publisher, year, edition, pages
Pergamon Press, 2015. Vol. 100, 524-534 p.
Stainless steel, thermal cycling, SEM, oxidation, high temperature corrosion
Metallurgy and Metallic Materials
IdentifiersURN: urn:nbn:se:liu:diva-122008DOI: 10.1016/j.corsci.2015.08.030ISI: 000363070100049OAI: oai:DiVA.org:liu-122008DiVA: diva2:861052
Funding agencies: AB Sandvik Materials Technology in Sweden; Swedish National Energy Administration through the Research Consortium of Materials Technology for Thermal Energy Processes [KME-701]; Agora Materiae and AFM Strategic Faculty Grant SFO-MAT-LiU at Linkoping Unive2015-10-152015-10-152015-11-30