Oxide Layers Mechanical Properties for Ni Base Alloys in HTR Environment

Abstract:

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Nickel base alloys 617 and 230 are promising candidates for the Intermediate Heat eXchanger (IHX) of GenIV Very High Temperature gas cooled Reactors. The capability to maintain an oxide layer as an efficient barrier against corrosion under mechanical loading is investigated through SEM in situ tensile test. The mechanical properties of external oxide layers are so compared between the two alloys. Cracks and spallation are observed. Few differences could be observed between these two alloys when pre oxidized in impure helium.

Info:

Periodical:

Materials Science Forum (Volumes 595-598)

Edited by:

Pierre Steinmetz, Ian G. Wright, Alain Galerie, Daniel Monceau and Stéphane Mathieu

Pages:

501-509

DOI:

10.4028/www.scientific.net/MSF.595-598.501

Citation:

D. Kaczorowski et al., "Oxide Layers Mechanical Properties for Ni Base Alloys in HTR Environment", Materials Science Forum, Vols. 595-598, pp. 501-509, 2008

Online since:

September 2008

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Price:

$35.00

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