Continuous KCl addition in high temperature exposures of 304 L – A way to mimic a boiler environment
Journal article, 2020

Alloys exposed in waste-fired boilers tend to exhibit higher corrosion rates and more signs of severe corrosion attack than in laboratory experiments simulating this type of environment. Thus, in order to better mimic the boiler environment, a laboratory setup with continuous deposition of KCl(s) on the samples has been performed. Areas with high amount of deposited KCl(s) reveal an accelerated corrosion attack characterized by thick oxide layers, void formation and steel grain boundary attack. Areas with less deposited KCl(s) exhibited the same morphology as presented earlier for 304 L samples exposed to small amount of KCl(s).

Deposits

Oxidation

KCl

High temperature corrosion

304 L

Author

Julien Phother Simon

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

Competence Centre for High Temperature Corrosion

Torbjörn Jonsson

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

Competence Centre for High Temperature Corrosion

Jesper Liske

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

Competence Centre for High Temperature Corrosion

Corrosion Science

0010-938X (ISSN)

Vol. 167 108511

Areas of Advance

Energy

Subject Categories

Materials Chemistry

Metallurgy and Metallic Materials

Corrosion Engineering

Infrastructure

Chalmers Materials Analysis Laboratory

DOI

10.1016/j.corsci.2020.108511

More information

Latest update

5/11/2021