Corrosion of aluminium and aluminium alloys

Diplomski rad obrađuje temu korozijskog ponašanja aluminija i aluminijevih legura. Teorijski dio rada općenito objašnjava korozijske procese, njihovu klasifikaciju te načine zaštite od korozije. Navedena su osnovna svojstva aluminija, te podjela aluminijevih legura i njihova primjena. Nadalje, navedeni su glavni korozijski oblici i metode korozijske zaštite svojstveni aluminiju i aluminijevim legurama. U eksperimentalnom dijelu provedeno je elektrokemijsko ispitivanje lijevane aluminijeve legure AlSi7Mg u svrhu analize korozijskog ponašanja u pitkoj vodi, morskoj vodi, te 3,5 %-tnoj otopini NaCl-a.The thesis deals with the topic of corrosion behavior of aluminum and aluminum alloys. The theoretical part of the work generally explains the corrosion processes, their classification and corrosion protection methods. The basic properties of aluminum are listed, as well as the classification of aluminum alloys and their application. Furthermore, the main corrosion forms and corrosion protection methods of aluminum and aluminum alloys are characterized. In the experimental part, electrochemical testing of cast aluminum AlSi7Mg alloy was performed for the purpose of analyzing corrosion behavior in tap water, seawater, and 3.5% NaCl solution