Mechanism of low temperature deformation in aluminium alloys

Gruber, Belinda; Weißensteiner, Irmgard; Kremmer, Thomas; Grabner, Florian; Falkinger, Georg; Schökel, Alexander; Spieckermann, Florian; Schäublin, R.; Uggowitzer, Peter J.; Pogatscher, Stefan

doi:10.1016/j.msea.2020.139935

Cited by 89 publications

(20 citation statements)

References 58 publications

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“…Lower dynamic recovery at 77 K would lead to a higher dislocation density, and therefore to higher strain hardening rates and a lower decrease in the strain hardening rate during deformation ( Fig. 3 (b)) [52] .…”

Section: Temperature Dependence Of Deformation Behaviormentioning

confidence: 99%

Effects of cryogenic temperature on tensile and impact properties in a medium-entropy VCoNi alloy

Yang

Ikeda

et al. 2021

Journal of Materials Science & Technology

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Section: Temperature Dependence Of Deformation Behaviormentioning

confidence: 99%

Effects of cryogenic temperature on tensile and impact properties in a medium-entropy VCoNi alloy

Yang

Ikeda

et al. 2021

Journal of Materials Science & Technology

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“…As regards Equation ( 17), dP dt a = αμb 2 dρ total dt a can be achieved, and by substituting this equation and Equation (17) into Equation ( 16), the following equation can be derived [36]:…”

Section: Post-annealing Modelmentioning

confidence: 99%

Mechanistic modelling of cryo-deformation and post-annealing of aluminium

Alyani

Kazeminezhad

2023

Materials Science and Technology

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Dynamic recovery (DRV) occurs through severe plastic deformation (SPD) of high-stacking fault energy metals, even at room temperature. SPD at sub-zero or relatively low temperatures, namely cryo-deformation, has long been employed to confer enhanced mechanical properties due to the suppression of DRV. In this paper, mechanistic models with a metallurgical sense are investigated for low- and room-temperature SPD (200 and 300 K) and post-annealing of aluminium. Cellular substructure as well as cross-slip and climb effects are considered in the modelling of SPD. A model based on stored energy is also used for the contribution of dislocation density to post-annealing behaviour. The predicted flow stress curve is fitted the experimental results perfectly. The mechanistic modelling of SPD has demonstrated a multi-stage work-hardening behaviour, which entails more details such as the mutual effects of DRV and dynamic recrystallisation. The annealing experimental results are in line with the post-annealing model outputs.

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“…Düşük sıcaklıklarda deformasyon hızının akma mukavemetine etkisi yok denecek kadar az iken, yüksek sıcaklıklarda etkili olduğu gösterilmiştir. Gruber ve arkadaşları (Gruber et al , 2020), alüminyum alaşımlarında düşük sıcaklıklarda oluşan deformasyon mekanizmalarını incelemişlerdir. 1085, 5182 ve 6016 alüminyum alaşımları üzerinde 296 K ile 77 K sıcaklıklarında çekme deneyleri yapılmış ve iç yapı incelemesi yapmışlardır.…”

Section: Umagd (2022) 14(2) 406-419 Kılıç and Demirdöğenunclassified

“…Şekil 16. Farklı seri alüminyum alaşımlarında sıcaklığın gerilme birim deformasyon eğrisine etkisi (Gruber et al , 2020).…”

Section: Umagd (2022) 14(2) 406-419 Kılıç and Demirdöğenunclassified

Investigation of the Effect of Temperature and Strain Rate on Mechanical Properties

Kılıç

DEMİRDÖĞEN²

2022

IJERAD

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The tensile test is one of the most basic and simple tests in which the material is pulled in a single axis until it breaks and allow us to recognize the material from the data obtained from it. While recognizing materials, their behavior under different temperatures and strain rates is also important. Especially in the manufacturing industry, there are many different production and shaping methods, and each has its own characteristics. For example, in the hot deep drawing process, the mechanical properties of the material can be determined by hot tensile tests. At the same time, this situation has become more important with the development of finite element analysis programs. Because modeling under the same conditions is very effective on the accuracy of the results. In this study, the effects of temperature and strain rate on tensile properties are investigated in steel, titanium, aluminum and nickel alloys. In the examinations, it is seen that the change of the temperature and strain rate for these materials have a great effect on the stress and ductility.

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Mechanism of low temperature deformation in aluminium alloys

Cited by 89 publications

References 58 publications

Effects of cryogenic temperature on tensile and impact properties in a medium-entropy VCoNi alloy

Effects of cryogenic temperature on tensile and impact properties in a medium-entropy VCoNi alloy

Mechanistic modelling of cryo-deformation and post-annealing of aluminium

Investigation of the Effect of Temperature and Strain Rate on Mechanical Properties

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