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High Temperature Materials and Processes

Editor-in-Chief: Fukuyama, Hiroyuki

Editorial Board: Waseda, Yoshio / Fecht, Hans-Jörg / Reddy, Ramana G. / Manna, Indranil / Nakajima, Hideo / Nakamura, Takashi / Okabe, Toru / Ostrovski, Oleg / Pericleous, Koulis / Seetharaman, Seshadri / Straumal, Boris / Suzuki, Shigeru / Tanaka, Toshihiro / Terzieff, Peter / Uda, Satoshi / Urban, Knut / Baron, Michel / Besterci, Michael / Byakova, Alexandra V. / Gao, Wei / Glaeser, Andreas / Gzesik, Z. / Hosson, Jeff / Masanori, Iwase / Jacob, Kallarackel Thomas / Kipouros, Georges / Kuznezov, Fedor

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Volume 31, Issue 1


Oxidation of Fe-Ni Alloys in Air at 700°C, 800°C and 950°C

Zhongning Shi / Dong Shi / Bingliang Gao / Junli Xu / Xianwei Hu / Zhaowen Wang
Published Online: 2012-02-09 | DOI: https://doi.org/10.1515/htmp.2011.147


The oxidation behavior of Fe-Ni alloys containing 10, 20, 43, 50, 57 and 80 (mass%) nickel was studied over the range 700°C–950°C in laboratory air atmosphere using thermogravimetric, XRD and SEM/EDAX techniques. The results showed that some oxidation kinetic curves of Fe-Ni alloys follow the parabolic law, some follow a cubic law, while the oxidation kinetic curves of 90Fe-10Ni is linear. XRD and SEM/EDAX results showed that the oxide scale consists of an outer layer of Fe2O3 and an inner layer of Ni-Fe-O and NiO compound. Ni content in the alloy has an important role for the formation of NiFe2O4 oxide. 20Fe-80Ni and 43Fe-57Ni can form NiFe2O4 at 700°C–950°C, while 50Fe-50Ni can form NiFe2O4 only oxidized at higher temperature of 950°C.

Keywords.: Iron-nickel alloy; oxidation; growth kinetics; inert anode

About the article

Received: 2011-07-11

Accepted: 2011-12-07

Published Online: 2012-02-09

Published in Print: 2012-02-01

Citation Information: High Temperature Materials and Processes, Volume 31, Issue 1, Pages 89–96, ISSN (Online) 2191-0324, ISSN (Print) 0334-6455, DOI: https://doi.org/10.1515/htmp.2011.147.

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©2012 by Walter de Gruyter Berlin Boston.Get Permission

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