Minor element effect on high temperature corrosion of a low-alloyed steel: Insight into alkali- and chlorine induced corrosion by means of atom probe tomography
Artikel i vetenskaplig tidskrift, 2021

High temperature corrosion remains a challenge for many high temperature applications. The corrosion resistance may be improved by the addition of minor amounts of reactive alloying elements. However, in the presence of corrosive species, such as alkali and chlorine, the corrosion rates are often highly accelerated. This study implements STEM/EDX and APT in order to shed light on a possible destructive minor element effect by investigating how the presence of minor amounts of corrosive species in the iron oxide formed on a low-alloyed steel may impair the corrosion resistance by increasing the oxide growth rate and possibly also reduce the oxide integrity.

Low-alloy steel

Atom probe tomography

Chlorine

High temperature corrosion

Alkali

Transmission electron microscopy

Författare

Amanda Persdotter

Chalmers, Kemi och kemiteknik, Energi och material, Oorganisk miljökemi

Torben Boll

Karlsruher Institut für Technologie (KIT)

Torbjörn Jonsson

Chalmers, Kemi och kemiteknik, Energi och material, Oorganisk miljökemi

Corrosion Science

0010-938X (ISSN)

Vol. 192 109779

Ämneskategorier

Annan kemi

Metallurgi och metalliska material

Korrosionsteknik

Styrkeområden

Materialvetenskap

DOI

10.1016/j.corsci.2021.109779

Mer information

Senast uppdaterat

2021-10-06