Processing of low Carbon steel by dual rolls equal channel extrusion

Rusz, Stanislav; Čížek, L.; Salajka, Michal; Kedroň, Jan; Tylšar, Stanislav

doi:10.1088/1757-899x/63/1/012061

Cited by 4 publications

(5 citation statements)

References 5 publications

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“…The increase in strength properties of steel after successive passes has been confirmed [9]. However, the limited tensile ductility of low-carbon steel strips processed by the DRECE method requires improvement with low-temperature annealing after plastic deformation, and the improvement needs to be carried out without any consequential significant decrease in strength [10]. Wang and Ma [12] confirm that the ductility of UFG materials [13], in particular non-ferrous metals and their alloys [14], may be effectively improved through the application of low-temperature annealing after using the classic methods of severe plastic deformation [15].…”

Section: Introductionmentioning

confidence: 89%

“…The multiple deformation affects the refinement of the microstructure and thus causes a related * E-mail: Karolina.Kowalczyk@polsl.pl improvement in mechanical properties compared to the initial state of the material [9]. A detailed description of the DRECE method can be found in Rusz et al [10]. The DRECE method is successfully used for forming low-carbon steel strips [11] due to the possibility of forming material with much larger sections than is possible using the classic SPD methods, and since deformation technology can be deployed without reduction in material thickness [9].…”

Section: Introductionmentioning

confidence: 99%

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The influence of post-deformation annealing temperature on the mechanical properties of low-carbon ferritic steel deformed by the DRECE method

Kowalczyk

2021

Materials Science-Poland

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The paper presents observations on the mechanical properties characterizing low-carbon steel subjected to deformation by the dual rolls equal channel extrusion (DRECE) method and annealed for 60 min in different temperature variants in the range of 450–700°C. The DRECE process was carried out up to seven passes at ambient temperature. The investigations carried out revealed that the strength of the steel strips increases corresponding to the rise in the number of DRECE passes applied. The yield strength (YS) after seven passes is >2.5 times higher compared to the material in the initial state (before the deformation process). However, the tensile ductility decreased significantly after the DRECE. In order to obtain favorable mechanical properties, the steel strips were subjected to annealing. Our study demonstrates that after being processed by the DRECE method, low-carbon steel can be subjected to low-temperature annealing to ensure that it is endowed with high strength, while maintaining the characteristic good ductility of the material. The results of the research were analyzed in the context of an investigation into the microstructure change, assessed by scanning transmission electron microscopy (STEM), induced in low-carbon steel subjected to the DRECE process and low-temperature annealing.

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Section: Introductionmentioning

confidence: 89%

Section: Introductionmentioning

confidence: 99%

The influence of post-deformation annealing temperature on the mechanical properties of low-carbon ferritic steel deformed by the DRECE method

Kowalczyk

2021

Materials Science-Poland

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“…The DRECE method is based on the extruding of metal sheet with a forming tool which produces a forming angle of 108 ° or 113 ° in the material deformation zone. [5] The device using DRECE is shown in Figure 1.…”

Section: Experiments By Drecementioning

confidence: 99%

Increasing the mechanical properties of DC01 steel by the DRECE method of severe plastic deformation

Szkandera

Sadílek

Rusz

et al. 2020

METAL 2020 Conference Proeedings

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The article is focused on the process of severe plastic deformation (SPD). New method using the SPD principle (DRECE) is described in the article. New method using the severe plastic deformation (DRECE) is particularly suitable for forming metal materials. Materials produced by this technology are characterized by increasing mechanical properties while maintaining sufficient ductility of the materials. In the practical part of the work, experiments were carried out on DC01 steel using the DRECE method. Sheet metal strips were formed through one to seven passes by DRECE method. The thickness of the formed strips was 2 mm, the strips width was 59 mm and the strips length were 1000 mm. The dimensions of the sheet metal strips were limited only by the design of the forming device using the method severe plastic deformation (DRECE). The experiment was performed on a forming tool with angle in the deformation material zone 108 °. The experiment was demonstrated on all sheet metal strips under the same forming conditions. The aim of the experiments was to verify the influence of the number of passes by the forming device on the achieved mechanical properties of the steel. The final part of the article describes the achieved mechanical properties of the sheet metal strip after forming by the DRECE method.

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“…In another work, the researchers tilted the upper surface of the exit channel by about 2°to 5°a nd obtained enhanced samples [6]. Other examples in this area are: change in die angles, dual equal channel lateral extrusion, equal channel angular pressing die with change of direction of exit channel, repetitive equal channel angular pressing by side extrusion process, rotary equal channel angular pressing die, multi pass equal channel angular pressing die, ultrasonic assisted equal channel angular pressing processes [7][8][9][10][11][12][13]. Any design in equal channel angular pressing process should consider the effect of friction as it dictates the required pressing force during the process.…”

Section: Introductionmentioning

confidence: 99%

A novel equal channel angular pressing design to eliminate punch deflection and to reduce the pressing force

Abbaszadeh

Sheikhi

Fallah

et al. 2023

Materialwissenschaft Werkst

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In the present study a new design of the equal channel angular pressing die and punch is introduced. The new design eliminates the deflection of the punch and at the same time lowers the frictional forces by reducing the contact area. In order to show the capability of the new design, the Al‐7075 alloy samples were processed in two equal channel angular pressing dies. The measured data for the novel and conventional equal channel angular pressing processes were compared. The microstructure of the processed samples was examined with scanning electron microscopy and transmission electron microscopy. The results of the experimental study revealed that the novel die can fully eliminate the risk of the punch deflection and simultaneously reduce the maximum required pressing force by about 3.1 % to 9.8 % for 16 % to 40 % reduction in frictional contact surfaces. The analysis of experimental results showed that there is non‐linear relation between the frictional contact area and the pressing load. In addition, it is shown that despites high contact pressures and high temperatures the use of graphite as a lubricant between sliding surfaces can considerably reduce the pressing load.

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Processing of low Carbon steel by dual rolls equal channel extrusion

Cited by 4 publications

References 5 publications

The influence of post-deformation annealing temperature on the mechanical properties of low-carbon ferritic steel deformed by the DRECE method

The influence of post-deformation annealing temperature on the mechanical properties of low-carbon ferritic steel deformed by the DRECE method

Increasing the mechanical properties of DC01 steel by the DRECE method of severe plastic deformation

A novel equal channel angular pressing design to eliminate punch deflection and to reduce the pressing force

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