High temperature oxidation of metallic chromium exposed to eight different metal chlorides

A1 Journal article (refereed)


Internal Authors/Editors


Publication Details

List of Authors: Lehmusto J, Skrifvars BJ, Yrjas P, Hupa M
Publisher: PERGAMON-ELSEVIER SCIENCE LTD
Publication year: 2011
Journal: Corrosion Science
Journal acronym: CORROS SCI
Volume number: 53
Issue number: 10
Start page: 3315
End page: 3323
Number of pages: 9
ISSN: 0010-938X


Abstract

The influence of eight different chlorides (BaCl(2), CaCl(2), KCl, LiCl, MgCl(2), NaCl, PbCl(2), and ZnCl(2)) on the oxidation of metallic chromium powder was studied at four different temperatures (400 degrees C, 500 degrees C, 550 degrees C, and 600 degrees C) under dry conditions in synthetic air by using a DTA/TG-apparatus. BaCl(2), CaCl(2), and MgCl(2) did not react with chromium at any of the studied temperatures. ZnCl(2) evaporated already before the air was introduced. KCl, LiCl, NaCl, and PbCl(2) were all found to be reactive and to accelerate the oxidation of chromium. LiCl reacted only at 600 degrees C, whereas the other three chlorides mentioned above reacted from 500 degrees C upwards.


Keywords

High temperature corrosion, Molten salts, SEM

Last updated on 2019-16-10 at 02:34