The Effect of Scandium Addition on the Mechanical Properties of Pure Aluminium and of an AlMg6 Alloy

Torma, T.; Kovács-Csetényi, E.; Vitális, L.; Vitányi, I.; Stepanov, J; Butova, M.

doi:10.4028/www.scientific.net/msf.13-14.497

Cited by 6 publications

(2 citation statements)

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“…8 wt-%Mg alloy in the as-rolled state and after annealing at 250uC, whereas in a sensitised specimen, the SCC susceptibility is somewhat increased by the Sc addition. 272 A third investigation found that Sc has no measurable detrimental effect on the SCC susceptibility of sensitised Al-5%Mg-0 . 15%Zr alloy.…”

Section: Corrosion Resistancementioning

confidence: 97%

Scandium in aluminium alloys

Røyset¹,

Ryum²

2005

International Materials Reviews

767

325

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A considerable part of the available literature on scandium in aluminium alloys is reviewed. Experimental data and assessments of the binary Al-Sc phase diagram, a wide range of ternary Al-Sc-X phase diagrams and a few higher order phase diagrams are accounted for, with emphasis on the aluminium rich part of the diagrams. The phase which is in equilibrium with Al, Al 3 Sc, can form by several different mechanisms, all of which are described. The precipitation kinetics of Al 3 Sc in binary Al-Sc alloys are discussed, and an overview of the reported influences of ternary alloying elements on the precipitation of Al 3 Sc is given. The Al 3 Sc phase particles can serve as a grain refiner in the Al melt, a dispersoid for controlling the grain structure of the alloy and a strengthening precipitate. Several examples of these three effects are mentioned, both in binary Al-Sc alloys, and in more complex alloys. The reported effects of Sc on the precipitation behaviour in Al-Cu, Al-Mg-Si, Al-Zn-Mg and Al-Li alloys are also revised. A brief account of the effects of Sc additions on the corrosion behaviour of Al and Al-alloys is given. Finally, some views on the current and future use of Sc-containing Al alloys are given.

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Section: Corrosion Resistancementioning

confidence: 97%

Scandium in aluminium alloys

Røyset¹,

Ryum²

2005

International Materials Reviews

767

325

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“…From the results it is perceived that no extra benefit obtained beyond 0.4 wt.% scandium addition as the grain refinement of the experimental alloy system has maximized at 0.4 wt.% Sc. It may be further explained that with 0.6 wt.% Sc shows the least ductility for their higher volume fraction of precipitates into the alloy and hence lower ductility [51,52].…”

Section: Tensile Propertiesmentioning

confidence: 99%

Properties of Al-6Mg-xSc (x = 0 to 0.6 wt.%) Alloy Subjected to Thermal Treatment: A Review

Kaiser¹

2021

Rev Adv Mater Tech

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Aluminum-magnesium alloys are regularly used to manufacture different types of sheets, automotive trims, and architectural components, which are very intricate in shape. Additionally it is important due to their excellent properties of high-strength to weight ratio, corrosion resistance and weldability. Magnesium increases the strength of the alloys but there is a tendency to form -phase Al 8 Mg 5 compound, usually denoted as Al 3 Mg 2 precipitates along grain boundaries to facilitate intergranular fracture. Numerous studies have been conducted on these alloys to make their use potential as different places. The use of scandium in Al-Mg alloys is meant for taking the advantage of grain refinement along with the unique precipitation strengthening behavior through the formation of Al 3 Sc precipitates with aluminum, a stable LI 2 phase coherent with the matrix. The purpose of this paper is to review and discuss recent developments on Al-6Mg alloy through scandium addition at different levels under thermal treatment.

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