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Article
Analysis of Fe-, Cu-, Mg- and Sr-Based Phases in Al–Si Alloys: Role of P Addition
The present work was performed on experimental Al–Si near eutectic cast alloys, with different additives mainly Fe, Mg, Mn, Cr, Sr and P. The alloys were solidified at 0.8°C/s, very close to equilibrium condit...
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Article
Effect of Transition Metals Addition on the Microstructure and Incipient Melting of 354-Based Alloys
Thermal analysis of various 354 alloy melts was carried out to determine the sequence of reactions and phases formed during solidification under close-to-equilibrium cooling conditions. The main reactions obse...
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Article
Development of Residual Stresses in Al–Si Engine Blocks Subjected to Different Metallurgical Parameters
Light aluminum alloy engine blocks have successfully replaced heavy ferrous materials in order to enhance automobile fuel efficiency. Aluminum engine blocks with gray iron cylinder liners are prone to tensile ...
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Article
Effect of metallurgical parameters on the drilling and tap** characteristics of aluminum cast alloys
The present study was performed on an Al-6% Cu-0.7%Si alloy, and 319 and 356 alloys following different heat treatments. The main task was to evaluate the drilling and tap** characteristics of the Al-Cu allo...
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Article
On the Enhancement of the Microstructure and Tensile Properties of an Al–Cu Based Cast Alloy
The present work was carried out on an Al–Cu alloy containing 6.5%Cu, 0.1%Si, 0.4%Mn, and 0.18%Zr (coded HT200). The investigations included hot-tearing tests, microstructural characterization, and tensile pro...
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Article
Effects of Alloying Elements and Testing Temperature on the Q-Index of Al–Si Based Alloys
The present study was performed on the 354 (Al–9wt%Si–1.8wt%Cu–0.5wt%Mg)-based alloy to which measured amounts of Zr, Ni, Mn and Sc were added. Tensile test bars were prepared from the different 354 alloys usi...
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Article
Inclusion Measurements in Al–Si Foundry Alloys Using Qualiflash and Prefil Filtration Techniques
Qualiflash is a quick method of assessing the melt cleanliness of foundry Al–Si alloys over a wide range of Si contents up to 17 wt%. It has an immediate response in measuring the quantity of oxides and non-me...
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Article
Metallurgical Aspects of Inclusion Assessment in Al–6%Si Casting Alloy Using the LiMCA Technique
In the production of high-quality aluminum castings, melt cleanliness is important in regard to the performance and quality of the cast part and is determined, among other factors, by the inclusions present in...
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Article
Effect of Sr–Grain Refining–Si Interactions on the Microstructural Characteristics of Al–Si Hypoeutectic Alloys
The present study was performed on A356.2 alloy to explore the link between the effectiveness of different grain refiner practices and strontium (Sr) modification on both the eutectic silicon (Si) particle mor...
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Article
Effect of Sr–Grain Refiner–Si Interactions on the Microstructure Characteristics of Al–Si Hypereutectic Alloys
The present study is part of a larger study where the effectiveness of different types of grain refiners in strontium-modified hypoeutectic alloys was evaluated. Silicon was shown to affect the mechanism of nu...
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Article
Measurement of Particles in Molten Al–Si Alloys Applying the Ultrasonic Technique
The present study was undertaken to investigate the capacity of the ultrasonic technique for measuring various particles in liquid aluminum and commercial 356 alloy at two different temperatures each. Particle...
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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
On the Impact Properties and Fractography of Al–11%Si Casting Alloy
This study focused on investigating the effects of Sr-modification and solidification rate as well as the aging treatment conditions on the impact toughness behavior of Al–11%Si near-eutectic alloys with the o...
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Article
Beta Al5FeSi phase platelets-porosity formation relationship in A319.2 type alloys
The effects of several variables on the precipitation of the β-Al5FeSi phase, and porosity formation in A319.2 alloys were examined in detail. Various techniques were used for microstructural characterization and...
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Article
On the Impact Properties and Fracture Mechanisms of A356.2-Type Cast Alloys
A study was carried out to investigate the effects of iron content, porosity and solidification rate on the impact properties and fracture behavior of A356.2-type alloys. The results show that impact propertie...
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Article
Influence of Oxides on Porosity Formation in Sr-Treated Alloys
The aim of the present study has been to investigate the metallurgical parameters controlling the microstructural evolution and porosity formation in Al–Si–Mg and Al–Si–Cu alloys, through a study of the micros...
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Article
Effect of Fe, Sr, P, Ti and Undercooling on the Precipitation of β-Al5FeSi in A319.2 Type Alloys
The present work was performed on an A319.2 alloy with different amounts of Fe. The melt was poured from two temperatures, i.e. 750 and 950 °C. The results show that increasing the melt superheat leads to an i...
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Article
RETRACTED ARTICLE: Parameters Controlling the Impact Toughness of A356.2 Cast Alloy
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Article
Thermal Analysis for Detection of Zr-Rich Phases in Al–Si–Cu–Mg 354-Type Alloys
The principal aim of the present research study was to investigate the effects of minor additions of zirconium on phase precipitation in 354 alloys under very slow solidification rates. The results showed that...
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Article
Effect of Transition Metals on the Tensile Properties of 354 Alloy: Role of Precipitation Hardening
The present study was carried out to investigate the effects of minor additions of Ni and Zr, individually or in combination, on the microstructure and tensile properties of 354 casting alloy (Al–9 wt%Si–1.8 w...
