Influence of Fe and Si Addition on the Properties and Structure Conductivity Aluminium

Abstract

The effect of iron and silicon addition on the structure and properties of aluminium wire rod obtained in the laboratory horizontal direct chill casting process has been analysed. In addition, the impact of laboratory wire drawing process has been examined. The addition of iron and velocity of casting increase the strength of aluminium wire rod in as-cast condition while the electrical conductivity drop acceptable. Moreover, the laboratory wire drawing process causes work-hardening wires and increase drawing tension as a result of fragmentation of structure and growth of grain boundaries. It has been shown that iron is beneficial for mechanical and technological properties of aluminium.

Microstructure Evolution of an Al–Fe–Ni Alloy with Zr and Sc Additions Upon Different Cooling Rates During Solidification for Improving the Mechanical and Electrical Conductivity Properties

“…The results show that among all of the tested hypereutectic alloys, the electrical conductivity of the Al-4Fe-0.3Zr and Al-8Ni-0.3Zr alloys were consistently higher than the Al-16Si-0.3Zr alloy in both as-cast and aged conditions. This is due to the fact that Fe and Ni elements have less detrimental effect on the conductivity of aluminum due to their lower solid solubility [16,17]. Both Al-4Fe-0.3Zr and Al-8Ni-0.3Zr alloys have their lowest measured conductivity (37-40 % IACS) substantially higher than those of conventional alloys (28 % IACS) [3].…”

Metallography of Al-Si Alloys with Alloying By Fe up to 1%

“…Industrial interest in aluminum-based alloys is due not only to the desire of designers to reduce the weight of products and equipment, but also to develop heat-conducting materials with high thermal conductivity of alloys [1]. Aluminum has relatively high values of thermal conductivity in the pure state, but any industry is focused on obtaining products from alloys close to eutectic compositions [2][3]. This explains the high manufacturability but unfortunately, with the improvement of manufacturability the thermal conductivity inevitably reduces [4].…”

Influence of Silicon on Temperature Dependence of Thermal Conductivity of Al–Si–Fe Alloys

“…Thermal conductivity is a physical property, which is crucial characteristic for heat exchange application [1]. Aluminum alloys are widely used as heat exchangers of electronic components in vehicles and aircrafts.…”