Oxidation of 800H/HT and AISI316L alloys in air and supercritical water

Majid Nezakat, Hamed Akhiani, Sami Penttilä, Seyed Morteza Sabet, Jerzy Szpunar

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientific

Abstract

In this study, we evaluated the oxidation resistance of two Fe-Ni-Cr based alloys (stainless steel 316L and incoloy 800H/HT) in air and supercritical water at 600 ºC. Results indicate that Incoloy 800H/HT shows considerably better oxidation resistance in supercritical water, compared to stainless steel 316L, and therefore it is a better candidate as a structural material for SCWR. The difference in chemical composition of the alloys was found to be the main reason for better oxidation resistance of incoloy 800H/HT as it has higher amount of chromium and nickel and, on the contrary, lower amount of iron. This resulted in the formation of a protective layer on the surface which significantly retarded the oxidation in supercritical water environment.
Original languageEnglish
Title of host publicationProceedings of the 7th International Symposium on Supercritical Water-Cooled Reactors (ISSCWR 2015)
PublisherVTT Technical Research Centre of Finland
Number of pages9
ISBN (Electronic)978-951-38-8289-1
ISBN (Print)978-951-38-8290-7
Publication statusPublished - 2015
MoE publication typeB3 Non-refereed article in conference proceedings
Event7th International Symposium on Supercritical Water-Cooled Reactors, ISSCWR-7 - Helsinki, Finland
Duration: 15 Mar 201518 Mar 2015

Publication series

SeriesVTT Technology
Number216

Conference

Conference7th International Symposium on Supercritical Water-Cooled Reactors, ISSCWR-7
Abbreviated titleISSCWR-7
CountryFinland
CityHelsinki
Period15/03/1518/03/15

    Fingerprint

Cite this

Nezakat, M., Akhiani, H., Penttilä, S., Sabet, S. M., & Szpunar, J. (2015). Oxidation of 800H/HT and AISI316L alloys in air and supercritical water. In Proceedings of the 7th International Symposium on Supercritical Water-Cooled Reactors (ISSCWR 2015) [2039] VTT Technical Research Centre of Finland. VTT Technology, No. 216 https://www.vtt.fi/inf/pdf/technology/2015/T216.pdf