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Original scientific paper

Influence of the selected structural parameter on a depth of intergranular corrosion of Al-Si7-Mg0,3 aluminum alloy

L. Bernat ; Poznan University of Technology, Faculty of Mechanical Engineering and Management, Division of Foundry, Poznan, Poland

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page 25-28

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The paper presents an influence of the Dendrite Arm Spacing (DAS) microstructure parameter on the intergranular corrosion of AlSi7Mg aluminum alloy. The samples were subjected to the corrosion process for: 2,5; 12; 24; 48 and 96 hours in NaCl + HCl + H2O solution. It was noted that the DAS parameter significantly influenced on a distribution and depth of the intergranular corrosion of the hypoeutectic Al - Si - Mg silumin.


Aluminum alloy Al - Si - Mg; corrosion distribution; microstructure

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