Optimization of the Aluminum Alloy Phase Composition Based on Si-0.6% Mn-0.5% with Changing the Iron Content
Sultanbek T.Zh. Dostayeva A.M. Zhalel A.T.
2025Abylkas Saginov Karaganda Technical University
Material and Mechanical Engineering Technology
2025#2025Issue 33 - 7 pp.
The article investigates the effect of iron content on the phase composition, microstructure, mechanical properties and electrical conductivity of the Si-0.6% Mn-0.5% aluminum alloy. Experimental alloys with iron content ranging from 0.1% to 2.0% were studied using X-ray diffraction analysis (XRD), optical and scanning electron microscopy, hardness and tensile strength testing, as well as eddy-current conductivity measurements. It was established that an iron content of 0.8% provides the most optimal balance of properties: hardness-60 HB, tensile strength-170 MPa, ductility-16%, and electrical resistivity-33 μΩ·m. With further increase of iron concentration, hardness and strength increase but electrical conductivity decreases significantly due to the formation of AlFeSi and Al₃Fe phases. The obtained results demonstrate that controlling the iron content allows optimization of aluminum alloys for application in electrical engineering, construction and automotive industries, where both high mechanical strength and stable conductivity are required.
aluminum alloy , electrical conductivity , hardness , heat treatment , iron , microstructure , phase composition , phase diagram
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Abylkas Saginov Karaganda Technical University, Karaganda, Kazakhstan
Abylkas Saginov Karaganda Technical University
10 лет помогаем публиковать статьи Международный издатель
Книга Публикация научной статьи Волощук 2026 Book Publication of a scientific article 2026