The Research of the Cavitation Erosion Resistance of the Aluminium Alloy 2017 a Structure Obtained by WIG Remelted

Abstract:

The paper presents the results of the behavior and resistance to the erosion by cavitation of the 2017 A aluminium alloy structure, obtained by the WIG remelted method. The research is in step with the new directions of study and aims to extend the aluminum alloy 2017 A to the manufacture of parts that work in the cavitation regime, such as: pistons and valves of thermal engines, respectively various pump rotors or motor boat propellers. The analysis performed on the basis of the specific curves, constructed according to the indications of the ASTM G32-2016 normas, shows that structure, obtained by the WIG remelting, confers a constant behavior to the cyclic stresses of microjets generated by the hydrodynamics of the vibratory cavitation. The comparison of the results, based on the specific parameters, used in the laboratory and indicated by the ASTM G32-2016 norms shows a resistance to cavitation erosion, clearly superior to the semi-finished structure and those obtained by artificial aging heat treatment at 1800C and 120 0C, with duration of one hour.

• Periodical: Key Engineering Materials (Volume 1031)
• Pages: 77-87
• DOI: https://doi.org/10.4028/p-4jqRbp
• Online since: November 2025
• Authors: Ilare Bordeasu*, Alexandru Nicolae Luca, Robert Parmanche, Cristian Ghera, Cornelia Laura Salcianu, Lavinia Madalina Micu, Daniel Ostoia, Iuliana Duma, Voicu Ioan Safta
• Keywords: Cavitation Erosion, Cavity Resistance, Erosion Depth, Erosion Rate, Mechanical Properties, Microstructure

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