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Stainless steels and ozone: The effect of dissolved ozone on the corrosion behaviour of stainless steels - Couverture souple

Pehkonen, Antero

 
9783838356709: Stainless steels and ozone: The effect of dissolved ozone on the corrosion behaviour of stainless steels
Couverture souple
ISBN 10 : 3838356705 ISBN 13 : 9783838356709
Editeur : LAP Lambert Academic Publishing, 2010

Synopsis

The corrosion behaviour of several stainless steels and some pure metals has been investigated in water solutions with dissolved ozone. Dissolved ozone increases the redox-potential of solutions to about +1200 mV vs. SCE and the corrosion potential of stainless steel to the transpassive region. The corrosion rate of stainless steels increases as the amount of alloying elements increases. The corrosion of stainless steels is mainly general but also peeling of oxide layers and pitting was also observed. As the pH of the solution is decreased, the corrosion rate of higher alloyed steels increases at higher pH than lower alloyed steels. Dissolved ozone increases the thickness of the oxide layers greatly up to 260 nm and greatly changes the composition of the layer. Chromium concentration is negligible in the oxide layers. Molybdenum concentrates in the outer layer, even more so with lower alloyed steels. Iron and alloying elements have oxidised to their highest valencies. The main components in the oxide layers are iron oxides and on the surfaces also MoO6 occurs.

Les informations fournies dans la section « Synopsis » peuvent faire référence à une autre édition de ce titre.

Présentation de l'éditeur

The corrosion behaviour of several stainless steels and some pure metals has been investigated in water solutions with dissolved ozone. Dissolved ozone increases the redox-potential of solutions to about +1200 mV vs. SCE and the corrosion potential of stainless steel to the transpassive region. The corrosion rate of stainless steels increases as the amount of alloying elements increases. The corrosion of stainless steels is mainly general but also peeling of oxide layers and pitting was also observed. As the pH of the solution is decreased, the corrosion rate of higher alloyed steels increases at higher pH than lower alloyed steels. Dissolved ozone increases the thickness of the oxide layers greatly up to 260 nm and greatly changes the composition of the layer. Chromium concentration is negligible in the oxide layers. Molybdenum concentrates in the outer layer, even more so with lower alloyed steels. Iron and alloying elements have oxidised to their highest valencies. The main components in the oxide layers are iron oxides and on the surfaces also MoO6 occurs.

Les informations fournies dans la section « A propos du livre » peuvent faire référence à une autre édition de ce titre.

Éditeur
LAP Lambert Academic Publishing
Date d'édition
2010
Langue
anglais
ISBN 10 
3838356705
ISBN 13 
9783838356709
Reliure
Broché
Nombre de pages
100
Coordonnées du fabricant
non disponible
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