Oxide Layers Mechanical Properties for Ni Base Alloys in HTR Environment

Damien Kaczorowski; Gouenou Girardin; S. Chamousset

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

Paper Titles

Chemical Evolution in the Substrate due to Oxidation: A Numerical Model with Explicit Treatment of Vacancy Fluxes
p.463

Corrosion of T91 Steel in LBE: Contribution to the Study of the Pb–Bi–O–Fe–Hg System - Thermodynamic Description of PbO–Fe₂O₃
p.473

Electrochemical Study of the Corrosion of Metals in Molten Fluorides
p.483

Influence of Al on the High Temperature Corrosion Behaviour of Inconel 617 in VHTR Primary Coolant Atmosphere
p.491

Oxide Layers Mechanical Properties for Ni Base Alloys in HTR Environment
p.501

A Review of Haynes^® 230^®and 617 Alloys for High Temperature Gas Cooled Reactors
p.511

High Temperature Oxidation of Fe-9Cr-1Mo Steel in Liquid Metal
p.519

Corrosion Mechanisms of Ni-Base Alloys in Pressurized Water Reactor Primary Conditions
p.529

Characterization of the Oxide Films Formed at the Surface of Ni-Base Alloys in Pressurized Water Reactors Primary Coolant by Transmission Electron Microscopy
p.539

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Oxide Layers Mechanical Properties for Ni Base Alloys in HTR Environment

Abstract:

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.