Published 2008 | Version v1
Miscellaneous Metadata-only

Oxidation Behaviour of High Chromium Ferritic Steels for SOFC Interconnect

Creators

  • 1. Metallurgy Department, Atomic Energy Authority, Cairo, (Egypt)

Description

The oxidation behaviour of two Fe-Cr ferritic steels (1Al and RA) developed as candidates for Solid Oxide Fuel Cell (SOFC) interconnect was studied in this paper. Isothermal oxidation tests were carried out in air in the temperature range 800- 10000 C. A total isothermal oxidation time of 1000 h was covered. The growth rate of the oxide scale was found to follow a parabolic law in the initial stage of oxidation. The value of the parabolic rate constant increased with increasing oxidation temperature. Alloy 1Al exhibited higher oxidation resistance while alloy RA showed spalling behavior when oxidized at 900 and 10000 C. The extent of spalling increased with increasing the oxidation temperature. Both alloys have similar scale morphology and x-ray diffraction analysis showed that both ferritic steels developed a Cr2O3 layer with an outer layer of Mn Cr2O4 spinel and a minor amount of FeCr2O4 spinel. (author)

Part of:
9. Arab conference on the peaceful uses of atomic energy, Beirut (LB), 13-16 Dec 2008, V. III

Additional details

Publishing Information

Publisher
Arab Atomic Energy Agency
Imprint Place
Tunisia (Tunisia)
Imprint Title
9. Arab conference on the peaceful uses of atomic energy, Beirut (LB), 13-16 Dec 2008, V.III
Imprint Pagination
351 p.
Journal Page Range
p. 258-267

Conference

Title
9. Arab conference on the peaceful uses of atomic energy
Dates
13-16 Dec 2008
Place
Beirut (Lebanon)

INIS

Country of Publication
Tunisia
Country of Input or Organization
Lebanon
INIS RN
42037612
Subject category
S36: MATERIALS SCIENCE;
Resource subtype / Literary indicator
Conference, Non-conventional Literature
Descriptors DEI
CHROMIUM STEELS; IRON; ISOTHERMAL PROCESSES; OXIDATION; OXYGEN; SOLID OXIDE FUEL CELLS
Descriptors DEC
ALLOYS; CARBON ADDITIONS; CHEMICAL REACTIONS; CHROMIUM ALLOYS; DIRECT ENERGY CONVERTERS; ELECTROCHEMICAL CELLS; ELEMENTS; FUEL CELLS; HIGH ALLOY STEELS; HIGH-TEMPERATURE FUEL CELLS; IRON ALLOYS; IRON BASE ALLOYS; METALS; NONMETALS; SOLID ELECTROLYTE FUEL CELLS; STAINLESS STEELS; STEELS; TRANSITION ELEMENT ALLOYS; TRANSITION ELEMENTS

Optional Information

Notes
13 refs.; 3 figs.; 2 tabs