Oxygen permeability through internal oxidation zone in Fe–Cr alloys under dry and humid conditions at 973 and 1 073 K

Setiawan, Asep Ridwan and Ani, Mohd Hanafi and Ueda, Mitsutoshi and Kawamura, Kenichi and Maruyama, Toshio (2010) Oxygen permeability through internal oxidation zone in Fe–Cr alloys under dry and humid conditions at 973 and 1 073 K. ISIJ International, 50 (2). pp. 259-263. ISSN 1347-5460 (O), 0915-1559 (P)

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Abstract

Internal oxidation of Fe–Cr alloys were investigated in dry and humid atmospheres at temperatures of 973 and 1 073 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 1 073 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.

Item Type:	Article (Journal)
Additional Information:	4583/4104
Uncontrolled Keywords:	internal oxidation, Fe–Cr alloys, oxygen permeability
Subjects:	T Technology > TA Engineering (General). Civil engineering (General) > TA401 Materials of engineering and construction
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Engineering > Department of Manufacturing and Materials Engineering
Depositing User:	Dr Mohd Hanafi Ani
Date Deposited:	07 Oct 2011 16:54
Last Modified:	19 Oct 2011 10:51
URI:	http://irep.iium.edu.my/id/eprint/4104

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