Microstructures and mechanical properties evolution of an Al–Fe–Cu alloy processed by repetitive continuous extrusion forming

Kong, Xiangxin; Zhang, Hui; Ji, Xiankun

doi:10.1016/j.msea.2014.06.038

Cited by 26 publications

(6 citation statements)

References 42 publications

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“…Initial microstructures of the HCC Al-Fe-Cu alloy and the principle schematic diagram of the R-Conform process were shown in Ref. [10].…”

Section: Methodsmentioning

confidence: 99%

Microstructures and Properties of Aluminum Alloys during Repetitive Continuous Extrusion Forming

Zhang

et al. 2016

MSF

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Repetitive continuous extrusion forming was employed as a continuous severe plastic deformation route and both Al-Fe-Cu alloy and Al-Mg-Si alloy were involved. Evolution of microstructures and properties during this process is investigated by optical microscope, electron-backscatter diffraction, transmission electron microscope, and tensile testing. The results show that in the Al-Fe-Cu alloy an obvious mechanical softening and grain refinement were observed, while in the Al-Mg-Si alloy it shows a slightly rising in strength and ductility as the extrusion passes increasing.

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“…Initial microstructures of the HCC Al-Fe-Cu alloy and the principle schematic diagram of the R-Conform process were shown in Ref. [10].…”

Section: Methodsmentioning

confidence: 99%

Microstructures and Properties of Aluminum Alloys during Repetitive Continuous Extrusion Forming

Zhang

et al. 2016

MSF

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“…Therefore there is no need to pre-heat the billet before the HPTE deformation, which takes full advantage of the characteristic feature of Conform• process. 59,60) The material temperature increases further during the subsequent HPTE deformation, upon that the maximum temperature is about 460°C at Conform-wheel velocity of 3 rpm and HPTE velocity of 518 rpm (Fig. 9(b)).…”

Section: Combination Of Hpte With Conform•mentioning

confidence: 98%

Perspectives of Scaling up of Severe Plastic Deformation: A Case of High Pressure Torsion Extrusion

Ivanisenko¹

2023

Mater. Trans.

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A demand for cheap and simple methods of processing of nanocrystalline materials attracted attention to metal forming techniques allowing introduction of large strains into metallic materials. Thanks to that a new scientific field, "Materials by severe plastic deformation", had been born and became an important segment of material science. High pressure torsion (HPT) is the most effective SPD method in respect of the microstructure refinement and processing costs. Despite attractive mechanical and physical properties demonstrated by HPT-processed materials, this technique cannot be used in industry due to a limited size of processed samples. To overcome this problem, a plenty of SPD methods, allowing processing of large-scale billets, was developed. However, none of them has found any application in industry, except a few cases, which are rather exceptions that confirm the rule. This overview is an attempt to analyze the reasons why industrial players remain reluctant to use SPD in technological processes. For this purpose, the advantages and drawbacks of the High Pressure Torsion Extrusion method of SPD are regarded.

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“…Subsequently, a large number of SPD methods were devised and applied to promote grain refinement and enhance strength. The representative techniques are equal-channel angular processing (ECAP) [ 14 ], high-pressure torsion (HPT) [ 15 , 16 ], and repetitive continuous extrusion (RCEF) [ 17 , 18 ]. In this article, RCEF technology was applied to produce a high-performance Al2024 as this technology can withstand great strain, enabling us to refine the grain size to improve mechanical properties.…”

Section: Introductionmentioning

confidence: 99%

“…The RCEF process has been used to produce other Al alloys in recent years. For example, Kong et al [ 18 ] improved the continuous extrusion die and employed the RCEF process for multi-pass deformation of an Al-Fe-Cu alloy, revealing that dynamic recrystallization occurred with an increase in the number of extrusion passes. This phenomenon led to a significantly refined grain size and improved performance.…”

Section: Introductionmentioning

confidence: 99%

Improvement in Mechanical Properties of Al2024 Alloy Using Mechanical Working and Heat Treatment

et al. 2023

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Extrusion speed has a significant influence on the extrusion temperature, microstructure and mechanical properties of the material in the repetitive continuous extrusion forming (RCEF) process. In this work, the mechanical properties of Al2024 were improved by adjusting the speed (with a general range of 2–10 rpm) of repetitive continuous extrusion and applying subsequent heat treatment. During the RCEF process, an increase in the extrusion speed from 4 to 8 rpm was found to increase the extrusion temperature and then enhance the solid solution function. The grain size was affected by the combined effect of deformation speed and its induced temperature. A high-strength Al2024 (ultimate tensile strength of 497.6 MPa) with good elongation (12.93%) was obtained by increasing the extrusion speed and conducting solid solution and artificial aging treatments. The main strengthening mechanisms could be attributed to finer grain size and a larger amount of S (Al2CuMg) precipitates.

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Microstructures and mechanical properties evolution of an Al–Fe–Cu alloy processed by repetitive continuous extrusion forming

Cited by 26 publications

References 42 publications

Microstructures and Properties of Aluminum Alloys during Repetitive Continuous Extrusion Forming

Microstructures and Properties of Aluminum Alloys during Repetitive Continuous Extrusion Forming

Perspectives of Scaling up of Severe Plastic Deformation: A Case of High Pressure Torsion Extrusion

Improvement in Mechanical Properties of Al2024 Alloy Using Mechanical Working and Heat Treatment

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