ISIJ International
Online ISSN : 1347-5460
Print ISSN : 0915-1559
ISSN-L : 0915-1559
Regular Article
Oxygen Permeability through Internal Oxidation Zone in Fe–Cr Alloys under Dry and Humid Conditions at 973 and 1 073 K
Asep Ridwan SetiawanMohd Hanafi Bin AniMitsutoshi UedaKenichi KawamuraToshio Maruyama
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2010 Volume 50 Issue 2 Pages 259-263

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Abstract

Internal oxidation of Fe–Cr alloys were investigated in dry and humid atmospheres at temperatures of 973 and 1073 K in order to clarify the effect of humidity on the oxygen permeability in internal oxidation zone. The oxygen partial pressure in the chamber was fixed by Fe/FeO powder mixture. The calculated oxygen permeability increases linearly with increasing Cr concentration in the alloys, both at 973 and 1073 K. Moreover, the presence of humidity enhanced the oxygen permeability compared with that under dry condition. The oxygen permeability through IOZ in humid atmosphere is larger than that in dry atmosphere as a factor of 1.2.

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© 2010 by The Iron and Steel Institute of Japan
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