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Showing 1 to 20 of 55 for “"Aluminium alloys"”.
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New processes in aluminium alloys
L'abstract è presente nell'allegato / the abstract is in the attachment
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Valence losses at interfaces in aluminium alloys
… magnesium silicide platelets within an aluminium matrix and silicon precipitates within an aluminium matrix. Both systems were prepared through thermal treatment of a 6061 A1 alloy. The majority of the data presented in this thesis was acquired using EELS. However, energy dispersive …
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Aspects of serrated flow in aluminium alloys
… testing has been undertaken on a range of aluminium base alloys. Material investigated included commercial binary Al-Mg (5182), ternary Al-Mg-Si (6061) and quaternary Al-Cu-Mn-Si (2014) as well as experimental alloys containing 2at.% additions of Ag, Mg and Zn to commercially pure AI …
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The electrical properties of ruthenium-aluminium alloys
… of platinum, gold-palladium and a selection of alloys from the ruthenium-aluminium system have been studied at high temperatures (up to 1000°C). The majority of the ruthenium-aluminium alloy compositions studied lie near or in the ruthenium aluminide phase field. Ruthenium aluminide is a B2 …
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Aspects of the oxidation of liquid aluminium alloys.
… all the research on the oxidation of molten aluminium alloys was carried out on quiescent melts. However, in most industrial processes in which molten aluminium is handled, the liquid metal will be under dynamic flowing conditions. Therefore the oxidation behaviour of a melt of aluminium …
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An abrasive-corrosive wear evaluation of some aluminium alloys
… the abrasive-corrosive wear behaviour of aluminium alloys with the aim of establishing a data base of performance and guide lines for material optimisation. Wear test apparatus and standard tests developed by previous research programmes were utilised (Noel and Allen, 1981; Barker, 1988). …
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Micromechanical studies and modelling of toughness in high strength aluminium alloys
… for two<br/>different medium/high strength Al-alloys for aerospace application. In weldable AA6156<br/>(Al-Mg-Si-Cu) alloy sheet, the quench sensitivity in toughness is assessed via enhanced<br/>Kahn tear tests. Toughness was seen to be reduced for both 60°C water quenched and air<br/>cooled …
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A study of the anodic behaviour of aluminium alloys in alkaline electrolytes
Recent studies an the discharge performance of aluminium alloys in alkaline media have led to improved alloys with significantly lower corrosion rates and more anodic potentials. Performance, of various alkaline electrolytes have also been examined and considerable progress has been made in this …
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Evaluation of the stress ralaxation technique for measuring softening kinetics in aluminium alloys
… of metal strip. In the particular case where aluminium sheet is used for lithographic applications, the surface appearance after electro-etching should be devoid of any streaking or inhomogeneous discolouration. The cause of possible streaking effects can be related to poor microstructure …
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Metal-foam interface stability during the filling of lost foam moulds with aluminium alloys
Aluminium Lost Foam castings were made using gravity and counter-gravity filling techniques. Tensile strength was found to be most uniform in those castings which had been filled slowly from the bottom and where the metal front had remained stable throughout filling sequence. Pores containing …
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The development of process technology for the friction stir welding of thick section aluminium alloys
The purpose of this study is to demonstrate how the interaction of the welding tool, particularly tool pin form in conjunction with rotational speed, applied force and processing temperature can account for joint formation during FSW (friction stir welding).
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Electrocoagulation for Water Treatment: the Removal of Pollutants using Aluminium Alloys, Stainless Steels and Iron Anodes
… out in phosphate-containing solutions with an aluminium-magnesium and a stainless steel electrode. Several operating conditions, such as the initial concentration of phosphates, current density, initial pH and sodium chloride concentration, were varied and the corresponding effects were …
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The slurry erosive-corrosive wear of a selection of aliminium alloys, particulate reinforced aluminium metal matrix composites and a selection of steels
A range of aluminium alloys and particulate reinforced aluminium metal matrix composites has been tested in an apparatus which simulates the erosive-corrosive action of a slurry. The slurry consisted of silica sand suspended in either distilled water or synthetic mine water. Several steels were …
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Aluminium Alloy Design Using Machine Learning
Aluminium alloys play a pivotal role in modern engineering and manufacturing, owing to their unique combination of strength-to-weight ratio. The design of aluminium alloys often encounters a trade-off between strength and ductility, making it challenging to achieve desired properties. Machine …
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