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Correlation between Microstructure and Electrochemical Properties of Al-Si Alloys

Minciuna Mirabela G., Vizureanu Petrica, Jeż Bartłomiej, Sandu Andrei Victor, Nabiałek Marcin, Achitei Dragos C.

Archives of Metallurgy and Materials

2022

Vol. 67, iss. 3

1067--1070

The composition and structural modification of aluminium alloys influence their strength, tribological properties and structural stability. The phase composition of the structure as well as the characteristics of the elementary cell of each identified phase was established by X-ray diffraction, and the main objective was to determine the compositional phases, microstructure and microcomposition of the alloy. Based on the cyclic voltammograms it can be said that on the OCP interval (+1.5 V… -1.1 V), after the breakthrough potential is an intensification of the anodic process by the pronounced increase of the current density, in these conditions the Al-Si alloy has low values which means that it has a better corrosion resistance.