Effect of different homogenization treatments on the hot workability of aluminium alloy AA2024

Verlinden, Bert; Wouters, P; McQueen, H.J.; Aernoudt, Etienne; Delaey, L.; Cauwenberg, S.

doi:10.1016/0921-5093(90)90288-e

Cited by 55 publications

(27 citation statements)

References 7 publications

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“…Also, the enhanced ductility with increasing temperature and decreasing strain rate is consistent with softening and failure mechanism deduced from many other results for aluminum and its alloys [45,46]. The failure mechanism is the formation, growth and linking up of inter-granular cracks which arise at high temperature because of grain boundary sliding.…”

Section: Ductilitysupporting

confidence: 86%

The room temperature mechanical properties of a thermo-mechanically processed Thixocast A356 aluminum alloy

Haghshenas

Zarei-Hanzaki

Sabetghadam

2009

Journal of Alloys and Compounds

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Section: Ductilitysupporting

confidence: 86%

The room temperature mechanical properties of a thermo-mechanically processed Thixocast A356 aluminum alloy

Haghshenas

Zarei-Hanzaki

Sabetghadam

2009

Journal of Alloys and Compounds

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“…The previous studies on hot workability of Al alloys [4][5][6][7] demonstrated that the high temperature deformation in these materials is controlled by dynamic recovery (DRV). This in fact is the characteristic feature of high stacking fault energy materials.…”

Section: Introductionmentioning

confidence: 99%

Hot deformation behaviour of Thixocast A356 aluminum alloy during compression at elevated temperature

Haghshenas¹,

Zarei-Hanzaki²,

Fatemi-Varzaneh³

et al. 2008

Int J Mater Form

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In present study, the flow behaviour and constitutive equation of Thixocast A356 Al alloy has been studied using hot compression test at 450°C, 500°C, 540°C under the strain rates of 0.0001 sec -1 , 0.0005 sec -1 , 0.001 sec -1 , 0.01 sec -1 . The compression flow curves exhibited an initial sharp increase with strain followed by a moderate work-hardening behaviour. The maximum stress was decreased as the strain rate reduced and the temperature increased. At the lowest examined temperature (450°C) and the highest applied strain rate (0.01 sec -1 ), a flow softening behaviour was observed. This was attributed to the morphological changes of the present precipitates.

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“…Generally, the yield stress at the second deformation stage decreases with an increasing delay time under the same temperature and the same strain rate. Verlinden et al [21,22] …”

Section: Dynamic Softening Behaviormentioning

confidence: 99%

Investigation on Softening Mechanism of 5754 Aluminum Alloy during Multistage Hot Deformation

Deng¹,

Wang²,

Liu³

2017

Preprint

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Abstract:Isothermal interrupted hot compression tests of 5754 aluminum were conducted on a Gleeble-3500 thermo-mechanical simulator at temperatures of 350 °C and 450 °C, and strain rates of 0.1 s −1 and 1 s −1 . To investigate the metadynamic recrystallization behavior, a range of inter-pass delay times (5-60 s) was employed. These tests simulated flat rolling to investigate how softening behaviors respond to controlled parameters, such as deformation temperature, strain rate, and delay times. These data allowed the parameters for the hot rolling process to be optimized. The dynamic softening at each pass and the effect of metadynamic recrystallization on flow properties and microstructural evolution were analyzed in detail. An offset yield strength of 0.2% was employed to calculate the softening fraction undergoing metadynamic recrystallization. A kinetic model was developed to describe the metadynamic recrystallization behaviors of the hot-deformed 5754 aluminum alloy. Furthermore, the time constant for 50% recrystallization was expressed as functions related to the temperature and the strain rate. The experimental and calculated results were found to be in close agreement, which verified the developed model.

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Effect of different homogenization treatments on the hot workability of aluminium alloy AA2024

Cited by 55 publications

References 7 publications

The room temperature mechanical properties of a thermo-mechanically processed Thixocast A356 aluminum alloy

The room temperature mechanical properties of a thermo-mechanically processed Thixocast A356 aluminum alloy

Hot deformation behaviour of Thixocast A356 aluminum alloy during compression at elevated temperature

Investigation on Softening Mechanism of 5754 Aluminum Alloy during Multistage Hot Deformation

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