ISSN:
1573-4889
Keywords:
Stainless steel
;
molten salt corrosion
Source:
Springer Online Journal Archives 1860-2000
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Abstract Oxidation tests in CO2 at 1123 K have been performed on samples of a 20%Cr-25%Ni-Nb-stabilized stainless steel contaminated by a mixture of sea salt. The test temperature is above the anticipated liquidus of the salt mixture but the quantity of the latter was limited and the oxidation reaction was not prevented. It is shown that the effect of the contaminant is to increase the formation of duplex oxides through spoiling of the protective chromia film. The effect is equally severe for all salt concentrations examined. Towards the upper end of the experimental range, however, the integrity of chromium-rich healing layers formed at the base of the duplex attack is reduced and the depth of internal oxidation increases.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00603840
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