Cyclic Oxidation Behaviour of Heat Resistance Cast Steel

Małgorzata Garbiak; Pawel Kaczmarek

doi:10.4028/www.scientific.net/MSF.782.288

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HomeMaterials Science ForumMaterials Science Forum Vol. 782Cyclic Oxidation Behaviour of Heat Resistance Cast...

Cyclic Oxidation Behaviour of Heat Resistance Cast Steel

Abstract:

The oxidation behaviour of niobium and titanium enriched, heat resistant cast steel 30Ni-18Cr has been evaluated under cyclic conditions. Cyclic testing was carried out in the air, at temperature of 800, 900 and 1000°C. The alloys underwent oxidation in 5 cycle tests. Characterization of the corrosion products was performed using SEM and X-ray examinations. The cross section and the surface of tested alloys were examined. It has been found that the oxidation resistance of cast steel 30Ni-18Cr in thermal cycling is higher when niobium or especially titanium are added to chemical composition of the alloy. The formation of scale rich in titanium oxides TiO₂was contributed to better oxidation behaviour.

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Periodical:

Materials Science Forum (Volume 782)

Pages:

288-291

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.782.288

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Online since:

April 2014

Authors:

Małgorzata Garbiak*, Pawel Kaczmarek

Keywords:

Austenitic Cast Steel, Cyclic Oxidation, Scale

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