Cavitation erosion mechanism based on analysis of erosion particles / A. Abouel-Kasem in Transactions of the ASME . Journal of tribology, Vol. 130 n°3 (Juillet 2008)
Cavitation erosion mechanism based on analysis of erosion particles [texte imprimé] / A. Abouel-Kasem, Auteur ; S. M. Ahmed, Auteur . - 2008 . - 6 p.
Tribology
Langues : Anglais (eng)
in Transactions of the ASME . Journal of tribology > Vol. 130 n°3 (Juillet 2008) . - 6 p.
Mots-clés : Particulate matter Cavitation erosion Erosion Mechanisms Fatigue Résumé : The mechanism of cavitation erosion is investigated in detail through observations of the removed particles from pure aluminum (Al-99.999). The particles removed during the incubation stage have distinctive characteristics compared to those removed in the subsequent stages. These characteristics are distinguished by lamellae structure, foldness, waviness, large size as well as one of the particle surfaces appeared to be part of the original face of the specimen. Therefore, these characteristics can be used as a monitor for early detection of cavitation erosion in closed systems. Systematic observations of disloged particles and eroded surface morphology show that the dominant failure mode in cavitation erosion is fatigue. En ligne : http://tribology.asmedigitalcollection.asme.org/article.aspx?articleID=1468069