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Article
Exploring the Effect of Ni as an Impurity on Fe-Rich Phases in Simulated Direct Chill Casting Al–Fe-Si Alloys
The influence of nickel at concentrations from 100 to 560 ppm on the microstructure of Al-0.15Si-0.3Fe-xNi alloy has been investigated. A Direct Chill (DC) simulator is used in the current study to simulate th...
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Article
Understanding the Effect of Be Addition on the Microstructure and Tensile Properties of Al–Si–Mg Cast Alloys
While the findings show the benefits of Be to reduce the deleterious effects of Fe-phases, this work does not promote its use. As noted, care must be taken due to the toxic nature of Be to ensure proper ventil...
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Article
Effects of Alloying Elements Additions on Ambient Temperature Performance of Al–Si–Cu–Mg Base Alloys
The present study was carried out to investigate the effects of Ni, Mn, Zr, and Sc additions, individually or in combination with other additives, on the microstructure and tensile properties of 354 casting al...
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Article
Mechanical Performance of Zr-Containing 354-Type Al-Si-Cu-Mg Cast Alloy: Role of Geometrical Discontinuities
The main objective of this study was to evaluate the performance of 354-type Al-Si-Cu-Mg cast alloys at both ambient (25 °C) and elevated temperatures (250 °C) through the addition of zirconium (Zr), nickel (Ni) ...
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Article
Effect of β-Al5FeSi and π-Al8Mg3FeSi6 Phases on the Impact Toughness and Fractography of Al–Si–Mg-Based Alloys
This study investigated the decomposition of π-AlMgFeSi into β-Al5FeSi phase needles during extended periods of solution heat treatment and its effects on the mechanical properties of Al–7Si–0.55Mg–0.1Fe alloys. ...
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Article
Effects of Mg, Fe, Be additions and solution heat treatment on the π-AlMgFeSi iron intermetallic phase in Al–7Si–Mg alloys
The presence of magnesium in Be-free Al–7Si–Mg alloys results in the formation of an undesirable iron-intermetallic known as the π-AlMgFeSi phase. The effect of Mg, Fe, and Be on the formation of this phase in...
