TY - CONF

T1 - Effect of Heating/Cooling-rates on the aging behaviour of Al alloys

AU - Samberger, Sebastian

AU - Stemper, Lukas

AU - Schmid, Florian

AU - Pogatscher, Stefan

PY - 2023/6/11

Y1 - 2023/6/11

N2 - Today’s design of aluminium alloys requires the material to show an enhanced recyclability andsustainability but still fulfil the requirements for strength and ductility. Higher recycling contentresults in increased amounts of trace elements which leads to detrimental effects on the materialproperties. Therefore, more and more sophisticated production routes are required to fit the needsof future alloys. The development of aluminium alloys does not only require an optimization of theelemental composition but also in-depth knowledge about an alloy’ behaviour under different heattreatments. As the heating and cooling rates of different processes have a high impact on the ma-terials properties it is – to some extent – possible to tailor the ductility and strength of the materialwith the applied heat treatment to please the needs of the industry.In this study we investigate material properties of sheet samples manufactures by different lab-scale production routes via tensile testing. Heat treatment in different medias is applied to showthe effect of the heating rate on the materials properties. Different cooling rates (quench rates) areapplied via multiple lab-scale customized aggregates and media. The effects are demonstrated byobserving the aging behaviour of a crossover alloy (Al-Mg-Zn-Cu). Results show the low quenchrate sensitivity of the investigated alloy and the possibility for tailoring the mechanical propertiesby optimized heat treatment, when utilizing advanced laboratory equipment.

AB - Today’s design of aluminium alloys requires the material to show an enhanced recyclability andsustainability but still fulfil the requirements for strength and ductility. Higher recycling contentresults in increased amounts of trace elements which leads to detrimental effects on the materialproperties. Therefore, more and more sophisticated production routes are required to fit the needsof future alloys. The development of aluminium alloys does not only require an optimization of theelemental composition but also in-depth knowledge about an alloy’ behaviour under different heattreatments. As the heating and cooling rates of different processes have a high impact on the ma-terials properties it is – to some extent – possible to tailor the ductility and strength of the materialwith the applied heat treatment to please the needs of the industry.In this study we investigate material properties of sheet samples manufactures by different lab-scale production routes via tensile testing. Heat treatment in different medias is applied to showthe effect of the heating rate on the materials properties. Different cooling rates (quench rates) areapplied via multiple lab-scale customized aggregates and media. The effects are demonstrated byobserving the aging behaviour of a crossover alloy (Al-Mg-Zn-Cu). Results show the low quenchrate sensitivity of the investigated alloy and the possibility for tailoring the mechanical propertiesby optimized heat treatment, when utilizing advanced laboratory equipment.

M3 - Paper

T2 - European Metallurgical Conference 2023

Y2 - 11 June 2023 through 14 June 2023

ER -