Effects of constrained groove pressing on mechanical properties of a TWIP steel

Shirani, M H; Anjabin, N.; Kim, Hyoung Seop

doi:10.1080/02670836.2021.1996130

Cited by 5 publications

(2 citation statements)

References 56 publications

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“…Nazari et al 12 examined the effects of multi-cut contour method and friction coefficient on the residual stresses of CGPed worksheets. Shirani et al 13 investigated the influence of CGP on the twinning-induced plasticity of steel sheets. They observed that by conducting more CGP cycles, YS (yield strength), hardness, and volume fraction of twins increased sharply.…”

Section: Introductionmentioning

confidence: 99%

Inclusive anisotropy and texture analyses of AZ91 Mg sheets subjected to various passes of elevated-temperature constrained groove pressing

Fereshteh-Saniee

Ghorbanhosseini

Sonboli

2023

Proceedings of the Institution of Mechanical Engineers, Part L:

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Constrained groove pressing (CGP) is a kind of sheet severe plastic deformation method suitable for enhancing the strengths of light alloys for various applications such as aerospace and automotive industries. In this research, the annealed AZ91 Mg alloy sheets were subjected to three CGP cycles at 300°C. Subsequently, optical microscopy, scanning electron microscopy, x-ray diffraction, and tensile tests for various directions were performed. Initially, there was a basal texture with a maximum intensity of 3.4 multiple random distribution and several β-Mg17Al12 particles as the second phase in the annealed sheet. As an important achievement of employing the CGP operation, the 1-passed sample represented a superior elongation of 35.7%, maximum yield strength of 141.0 MPa, and maximum ultimate tensile strength of 231.0 MPa in the rolling direction. These were mainly due to, the grain refinement, enhancing the fiber texture in the transverse direction, and controlling the basal texture. However, the experimental results revealed that the basal texture during the second and third passes of the operation could not be controlled. The main preferred orientation was changed from [Formula: see text] fiber for the annealed sheet to [Formula: see text] fiber for the CGPed sheets. It is also interesting to note that based on an anisotropy analysis, the 1-passed sample was the most isotropic worksheet, making this specimen a suitable blank for secondary metal forming processes, in comparison with the other CGPed samples. Fractography also indicated that the fracture mechanism varied among ductile, brittle, and mixed modes for workpieces subjected to different passes of the process.

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Section: Introductionmentioning

confidence: 99%

Inclusive anisotropy and texture analyses of AZ91 Mg sheets subjected to various passes of elevated-temperature constrained groove pressing

Fereshteh-Saniee

Ghorbanhosseini

Sonboli

2023

Proceedings of the Institution of Mechanical Engineers, Part L:

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“…Among various SPD methods accumulative roll-bonding (ARB) [5], and constrained groove pressing (CGP) [6,7] are suited for sheet materials. The CGP method has been employed to process different sheet metals including Al [8], copper [9][10][11], low carbon steel [3], Ni [12], NiTi [13], stainless steel [14], Ti [15], Ti6Al4V [16], and twinning induced plasticity high Mn steel [17].…”

Section: Introductionmentioning

confidence: 99%

Friction stir welding of severely deformed copper sheets: Microstructure and mechanical properties

Yaghoubi

Anjabin

2023

Materials Science and Technology

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Friction stir welding (FSW) was performed at different tool rotation speeds of 1250 and 1600 rev min−1 on both annealed, and severely plastic deformed copper sheets via constrained groove pressing (CGP). Also, the effects of water cooling during FSW on weld properties of CGP-treated samples were investigated. It is found that the heat-affected zone (HAZ) has a lower hardness value than the corresponding base metal due to the large grain growth. While the stir zone (SZ) shows a finer grain size with a higher hardness. Moreover, the results proved that in-process water cooling can effectively reduce grain growth in HAZ of CGPed samples and improve the weld strength by increasing the minimum hardness to about SZ hardness of the annealed sample.

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Texture Analyses and Mechanical Behavior of a High-Mn Steel Subjected to Different Pass Number of Simple Shear

da Silva Lima,

Rodrigues,

Al-Maharbi

et al. 2024

Met. Mater. Int.

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Effects of constrained groove pressing on mechanical properties of a TWIP steel

Cited by 5 publications

References 56 publications

Inclusive anisotropy and texture analyses of AZ91 Mg sheets subjected to various passes of elevated-temperature constrained groove pressing

Inclusive anisotropy and texture analyses of AZ91 Mg sheets subjected to various passes of elevated-temperature constrained groove pressing

Friction stir welding of severely deformed copper sheets: Microstructure and mechanical properties

Texture Analyses and Mechanical Behavior of a High-Mn Steel Subjected to Different Pass Number of Simple Shear

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