The influence of a KCl-rich environment on the corrosion attack of 304 L: 3D FIB/SEM and TEM investigations
Journal article, 2021

This study investigates the intergranular corrosion of a stainless steel (304 L) in the presence of KCl(g)/KCl(s) at 600 ◦C by using a FIB/SEM to perform 3D reconstruction/tomography of grain boundary attacks in combination with TEM. The investigation shows that the combination of the 3D FIB/TEM offers a great potential for the study of complex features, i.e. intergranular corrosion. The initiation and propagation of the grain boundary attack occurred very rapidly below an intact secondary protection. No large accumulations of metal chlorides were observed at the grain boundary regions. Instead, indications of very rapid alloy diffusion in grain boundary regions were observed.

Intergranular corrosion

304L

High-temperature corrosion

TEM

3D tomography

Author

Julien Phother Simon

Chalmers, Chemistry and Chemical Engineering, Energy and Material, Environmental Inorganic Chemistry 1

Imran Hanif

Chalmers, Chemistry and Chemical Engineering, Energy and Material, Environmental Inorganic Chemistry 1

Jesper Liske

Chalmers, Chemistry and Chemical Engineering, Energy and Material, Environmental Inorganic Chemistry 1

Torbjörn Jonsson

Chalmers, Chemistry and Chemical Engineering, Energy and Material, Environmental Inorganic Chemistry 1

Corrosion Science

0010-938X (ISSN)

Vol. 183 109315

Subject Categories

Materials Chemistry

Metallurgy and Metallic Materials

Infrastructure

Chalmers Materials Analysis Laboratory

Areas of Advance

Materials Science

DOI

10.1016/j.corsci.2021.109315

More information

Latest update

1/12/2022