Abstract

TRISTANCHO, JOSÉ; VASQUEZ, CUSTODIO  and  PENA, DARIO. HOT CORROSION STUDY OF AISI-SAE 304H ALLOY, BY USING THE ELECTROCHEMICAL IMPEDANCE SPECTROSCOPY TECHNIQUE. Dyna rev.fac.nac.minas [online]. 2007, vol.74, n.153, pp.119-124. ISSN 0012-7353.

Hot corrosion is one of the most important corrosion problems in power generation industry, especially in vapor generations components. Corrosion phenomena in molten salts is partially electrochemical nature and therefore, it can be studied by using the impedance electrochemical technique, which can be adapted to the conditions of corrosive environments and temperature. In this research, the corrosion behavior of AISI304H steel exposed to 80%V₂O₅ - 20%Na₂SO₄ molten salt at a range temperature between 550ºC and 700ºC was evaluated.

Keywords : Hot Corrosion; EIS; molten salts; fluxing; corrosion.

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