The influence of silicon on the corrosion properties of FeCrAl model alloys in oxidizing environments at 600 °C
Journal article, 2018

The present study investigates the influence of Si on the high temperature corrosion behaviour of FeCrAl model alloys in O2, O2+H2O and O2+H2O + KCl at 600 °C for up to 168 h. The investigation by SEM/EDX showed that all alloys displayed a protective behaviour in dry O2. In the more corrosive environments (O2+H2O and O2+H2O + KCl) the addition of Si affected the oxidation properties in two ways; Alloys containing Si resisted breakaway oxidation caused by Cr-evaporation (O2+H2O) and the thickness of the oxide formed after breakaway oxidation decreased with increasing amount of Si (O2+H2O + KCl).

A. Aluminium

C. High temperature corrosion

A. Alloy

B. SEM

Author

Johan Eklund

Chalmers, Chemistry and Chemical Engineering, Energy and Material, Environmental Inorganic Chemistry

B. Jonsson

Kanthal AB

Amanda Persdotter

Chalmers, Chemistry and Chemical Engineering, Energy and Material, Environmental Inorganic Chemistry

Jesper Liske

Chalmers, Chemistry and Chemical Engineering, Energy and Material, Environmental Inorganic Chemistry

Jan-Erik Svensson

Chalmers, Chemistry and Chemical Engineering, Energy and Material

Torbjörn Jonsson

Chalmers, Chemistry and Chemical Engineering, Energy and Material, Environmental Inorganic Chemistry

Corrosion Science

0010-938X (ISSN)

Vol. 144 266-276

Subject Categories

Other Materials Engineering

Metallurgy and Metallic Materials

Corrosion Engineering

DOI

10.1016/j.corsci.2018.09.004

More information

Latest update

12/10/2018