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

A1 Originalartikel i en vetenskaplig tidskrift (referentgranskad)


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Publikationens författare: Lehmusto J, Skrifvars BJ, Yrjas P, Hupa M
Förläggare: PERGAMON-ELSEVIER SCIENCE LTD
Publiceringsår: 2011
Tidskrift: Corrosion Science
Tidskriftsakronym: CORROS SCI
Volym: 53
Nummer: 10
Artikelns första sida, sidnummer: 3315
Artikelns sista sida, sidnummer: 3323
Antal sidor: 9
ISSN: 0010-938X


Abstrakt

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.


Nyckelord

High temperature corrosion, Molten salts, SEM

Senast uppdaterad 2019-15-10 vid 02:54