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Effect of ultrasound treatment of AlSi5 liquid alloy on corrosion resistance / A. Arrighini in Materials and corrosion, Vol. 61 N° 3 (Mars 2010) 

Public ISBD [article]  in Materials and corrosion > Vol. 61 N° 3 (Mars 2010) . - pp. 218–221 Titre : Effect of ultrasound treatment of AlSi5 liquid alloy on corrosion resistance Type de document : texte imprimé Auteurs : A. Arrighini, Auteur ; M. Gelfi, Auteur ; A. Pola, Auteur Année de publication : 2010 Article en page(s) : pp. 218–221 Note générale : Génie mécanique Langues : Anglais (eng) Mots-clés : AlSi5;  corrosion;  casting;  electrochemical  tests;  ultrasound  treatment Résumé : The application of power ultrasound to liquid alloys can be a simple and cost effective method to induce both degassing and grain refinement in a single step, without the need of inert gas or inoculants additions. In this paper, the treatment of liquid hypoeutectic AlSi5 alloy by ultrasound waves and its effects on microstructure were investigated. The corrosion behavior of ultrasound treated samples was compared to that of the non-treated ones by means of immersion and electrochemical tests. It was observed that the ultrasound treated alloy offers better quality, higher mechanical properties and improved corrosion resistance, as a consequence of a more uniform distribution of the solute. En ligne : http://onlinelibrary.wiley.com/doi/10.1002/maco.200905303/abstract [article] Effect of ultrasound treatment of AlSi5 liquid alloy on corrosion resistance [texte imprimé] / A. Arrighini, Auteur ; M. Gelfi, Auteur ; A. Pola, Auteur . - 2010 . - pp. 218–221. Génie mécanique Langues : Anglais (eng) in Materials and corrosion > Vol. 61 N° 3 (Mars 2010) . - pp. 218–221 Mots-clés : AlSi5;  corrosion;  casting;  electrochemical  tests;  ultrasound  treatment Résumé : The application of power ultrasound to liquid alloys can be a simple and cost effective method to induce both degassing and grain refinement in a single step, without the need of inert gas or inoculants additions. In this paper, the treatment of liquid hypoeutectic AlSi5 alloy by ultrasound waves and its effects on microstructure were investigated. The corrosion behavior of ultrasound treated samples was compared to that of the non-treated ones by means of immersion and electrochemical tests. It was observed that the ultrasound treated alloy offers better quality, higher mechanical properties and improved corrosion resistance, as a consequence of a more uniform distribution of the solute. En ligne : http://onlinelibrary.wiley.com/doi/10.1002/maco.200905303/abstract