Microstructure and Mechanical Properties of Severely Deformed Eutectic Al–Si–Cu–Mn Alloy

Alemdağ, Yasin; Karabıyık, Sadun; Pürçek, G.

doi:10.1007/s12540-022-01280-y

Cited by 6 publications

(1 citation statement)

References 59 publications

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“…However, the high energy consumption of the previously mentioned SPD approaches limits the sample size and industrial application. A promising SPD technique that allows for processing bulk samples while maintaining their geometry is isothermal multidirectional forging (MDF) [13][14][15][16][17]. MDF has been effectively used for achieving outstanding grain-refinement in the Al-based alloys [18,19], by which a grain size of 0.5-2 µm was achieved in 5xxx type alloys [20,21].…”

Section: Introductionmentioning

confidence: 99%

Microstructure Evolution and Constitutive Modelling of Deformation Behavior for Al-Mg-Si-Cu-Sc-Zr Alloy Processed with Isothermal Multidirectional Forging

Mochugovskiy,

Kaplanskaya,

Mosleh

et al. 2023

Applied Sciences

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This research is devoted to the microstructure evolution and deformation behavior of the Al-1.2Mg-0.7Si-1.0Cu-0.1Sc-0.2Zr alloy during the isothermal multidirectional forging (MDF) in a large cumulative strain and temperature range. The structure investigation of the studied alloy revealed several phases precipitated during solidification, among which θ(Al2Cu), Q(Al5Cu2Mg8Si6), Mg2Si, Sc-bearing W(AlScCu) and V(AlSi2Sc2) phases were observed. The MDF at 150–350 °C and a maximum cumulative strain of 14.4 significantly refined grain structure providing a mean grain size of 1.2–2.1 µm. The L12 structured Al3(Sc,Zr) dispersoids with a mean size of 10 ± 1 nm were formed during two-step homogenization annealing. Due to Zener pinning of the nanoscale dispersoids and fine-grained structure, the alloy exhibited near-superplastic behavior in a temperature range of 460–500 °C and strain rate range of 2 × 10−3–1 × 10−2 s−1 with the maximum elongation to failure of ~300%. After a strengthening heat treatment, the forged alloy exhibited the yield strength of 326 ± 5 MPa, ultimate tensile strength of 366 ± 5 MPa, and elongation of 10 ± 3%. The hot deformation behavior was described using the Arrhenius type model. The developed model demonstrated high predictability accuracy with a maximum average absolute relative error of 6.6%.

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Section: Introductionmentioning

confidence: 99%

Microstructure Evolution and Constitutive Modelling of Deformation Behavior for Al-Mg-Si-Cu-Sc-Zr Alloy Processed with Isothermal Multidirectional Forging

Mochugovskiy,

Kaplanskaya,

Mosleh

et al. 2023

Applied Sciences

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Microstructure, thermal and radiation shielding properties of aluminium‐silicon‐boron alloy prepared by mechanical alloying

Yaykaşlı,

Eskalen,

Göğebakan

et al. 2024

Materialwissenschaft Werkst

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This study focused on developing microstructural, thermal, and radiation shielding changes in Al50Si25B25 powders using mechanical alloying techniques. Based on the x‐ray powder diffraction data, the crystallite size and microstrain of the 100‐hours milled powder were calculated as 0.25 nm and 50.33 %, respectively. The solubility of silicon in the α‐aluminium matrix increased with longer mechanical alloying duration. Transmission electron microscope analyses further showed that the alloy particulates had an average size of 3 μm and an average grain size of 0.226 nm. The radiation shielding properties of the Al50Si25B25 powders indicated that the Linear Attenuation Coefficient value increased from 0.0554±0.1689 cm−1 to 1.0632±0.2425 cm−1 with an increase in the thickness of the Al50Si25B25 alloy. This work successfully demonstrated the potential of mechanical alloying techniques to enhance the microstructural and thermal properties of Al50Si25B25 powders. It highlighted their effectiveness in providing radiation shielding capabilities when varying the thickness of the alloy.

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Mechanical Properties of Al-9Si-0.6Mg-0.1Sr Alloy Processed By Successive Hot and Cold Multi-directional Forging

Karabiyik,

Alemdag,

Atmaca

et al. 2023

JOM

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Microstructure and Mechanical Properties of Severely Deformed Eutectic Al–Si–Cu–Mn Alloy

Cited by 6 publications

References 59 publications

Microstructure Evolution and Constitutive Modelling of Deformation Behavior for Al-Mg-Si-Cu-Sc-Zr Alloy Processed with Isothermal Multidirectional Forging

Microstructure Evolution and Constitutive Modelling of Deformation Behavior for Al-Mg-Si-Cu-Sc-Zr Alloy Processed with Isothermal Multidirectional Forging

Microstructure, thermal and radiation shielding properties of aluminium‐silicon‐boron alloy prepared by mechanical alloying

Mechanical Properties of Al-9Si-0.6Mg-0.1Sr Alloy Processed By Successive Hot and Cold Multi-directional Forging

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