| Titre : |
Forms of corrosion : Erosion-corrosion - Part 8 |
| Type de document : |
texte imprimé |
| Auteurs : |
P. K. Kamani, Auteur |
| Année de publication : |
2013 |
| Article en page(s) : |
p. 102-108 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Catégories : |
Cavitation
Corrosion
Corrosion par érosion
|
| Index. décimale : |
620.11 Matériaux (propriétés, résistance) |
| Résumé : |
Erosion-corrosion is associated with a flow-induced mechanical removal of the protective surface film that results in a subsequent increase corrosion rate via either electrochemical or chemical processes. The combined effect of erosion and corrosion is significantly higher than the sum of the effect of individual process acting separately. This joint action leads to a synergistic interaction that enhances the wear rate of the material, causing severe problems to engineering components exposed to these aggressive conditions. it is often accepted that a critical fluid velocity must be exceeded for a given material. The mechanical damage by the impacting fluid imposes disruptive shear stresses or pressure variations on the material surface and/or the protective surface film. Erosion-corrosion may further be enhanced by particles (solids or gas bubbles) and impacted by multi-phase flows. The morphology of surfaces affected by erosion-corrosion may be in the form of shallow pits, cornet tails, or horseshoes or other local phenomena related to the flow direction. Solid particle erosion-corrosion is the wear caused by the combined action of the mechanical process of solid particle erosion and the electrochemical process of corrosion. |
| Note de contenu : |
- FACTORS CAUSING EROSION-CORROSION : a. Effect of surface films - b. Effect of flow rate - c. Electro-chemical effect - d. Effect of impinges
- MECHANISM
- REMEDIAL MEASURE
- CAVITATION CORROSION/CAVITATION DAMAGES
- EFFECT OF VARIABLE ON CAVITATION CORROSION
- MECHANISM
- REMEDIAL MEASURES |
| En ligne : |
https://drive.google.com/file/d/1fP-DsnF52YEFxvnpyT8IGryIvgPqnjV4/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=20349 |
in PAINTINDIA > Vol. LXIII, N° 12 (12/2013) . - p. 102-108
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Forms of corrosion : Erosion-corrosion - Part 8 in PAINTINDIA, Vol. LXIII, N° 12 (12/2013)
