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Controlling the microstructure and strength of copper submitted to multidirectional forging
Materials Science and TechnologySevere plastic deformation (SPD) techniques have been widely used to enhance strength and promote grain refinement in metals. Multi-Directional Forging (MDF), based on successive compressions with strain path changes, enables tailoring of microstructure and mechanical properties by controlling strain amplitude (Δ ɛ )
Maria Elisa Landim Nassif +6 more
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Journal of Materials Engineering and Performance, 2019
Multidirectional forging (MDF) was applied to Mg-6%Zn alloy up to 5 passes successfully at 280 °C. MDF-processed materials were characterized using optical microscope, scanning electron microscope, electron backscatter diffraction, transmission electron microscope, and x-ray diffraction. Obtained results showed a significant reduction in grain size (up
S. Ramesh +4 more
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Multidirectional forging (MDF) was applied to Mg-6%Zn alloy up to 5 passes successfully at 280 °C. MDF-processed materials were characterized using optical microscope, scanning electron microscope, electron backscatter diffraction, transmission electron microscope, and x-ray diffraction. Obtained results showed a significant reduction in grain size (up
S. Ramesh +4 more
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Advanced Engineering Materials, 2020
Commercial‐purity copper (99.8%) is processed by multidirectional forging (MDF) using strain amplitudes per compression (Δε) of 0.15 and 0.30, leading to accumulated strains (ε) of up to ≈10.8. It is shown that increasing the accumulated strain causes continuous reactions at the substructural level, involving the progressive evolution of dislocation ...
Paula Cibely Alves Flausino +5 more
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Commercial‐purity copper (99.8%) is processed by multidirectional forging (MDF) using strain amplitudes per compression (Δε) of 0.15 and 0.30, leading to accumulated strains (ε) of up to ≈10.8. It is shown that increasing the accumulated strain causes continuous reactions at the substructural level, involving the progressive evolution of dislocation ...
Paula Cibely Alves Flausino +5 more
openaire +2 more sources
Journal of Materials Engineering and Performance, 2019
In the present paper, multidirectional forging (MDF), as a severe plastic deformation process, was carried out on an extruded AM60 magnesium alloy. The microstructure, texture, and mechanical properties of the MDFed samples were examined. Microstructural findings indicated that the grain size of the alloy decreased from 10.2 to 3.7 µm after six MDF ...
M. A. Salevati +2 more
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In the present paper, multidirectional forging (MDF), as a severe plastic deformation process, was carried out on an extruded AM60 magnesium alloy. The microstructure, texture, and mechanical properties of the MDFed samples were examined. Microstructural findings indicated that the grain size of the alloy decreased from 10.2 to 3.7 µm after six MDF ...
M. A. Salevati +2 more
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AIP Conference Proceedings, 2020
Ultrafine grain of metals can be obtained through severe plastic deformation techniques. One of the severe plastic deformation techniques is multidirectional forging, in which multiple forging is applied on a workpiece in three orthogonal directions. In this study, the multidirectional forging, with varying die dimensions, each with a single press on ...
Fethma M. Nor +3 more
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Ultrafine grain of metals can be obtained through severe plastic deformation techniques. One of the severe plastic deformation techniques is multidirectional forging, in which multiple forging is applied on a workpiece in three orthogonal directions. In this study, the multidirectional forging, with varying die dimensions, each with a single press on ...
Fethma M. Nor +3 more
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Journal of Alloys and Compounds, 2019
Abstract The as-cast Mg-4Zn-2Gd-0.5Ca alloy mainly contained I phase and W phase, while the I phase dissolved into Mg substrate after homogenization treatment which improved the alloy’s corrosion resistance. After the application of multidirectional forging (MDF), the grains were refined obviously accompanied with the precipitation of I phase.
Fang-fang Cao +4 more
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Abstract The as-cast Mg-4Zn-2Gd-0.5Ca alloy mainly contained I phase and W phase, while the I phase dissolved into Mg substrate after homogenization treatment which improved the alloy’s corrosion resistance. After the application of multidirectional forging (MDF), the grains were refined obviously accompanied with the precipitation of I phase.
Fang-fang Cao +4 more
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Fine-Grained Structure Formation in 7475 Al Alloy during Hot Multidirectional Forging
Materials Science Forum, 2006Effect of strain rate on grain refinement was studied in multidirectional forging (MDF) of a coarse-grained 7475 Al alloy at 490oC under strain rates of 3 × 10-4 s-1 and 3 × 10-2 s-1. At a strain rate of 3 × 10-4 s-1, the stress – strain ( σ - ε) behavior shows significant work softening just after yielding and a steady-state flow at higher strains ...
Alexandre Goloborodko +3 more
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Materials Science and Engineering: A, 2022
Paula Cibely Alves Flausino +4 more
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Paula Cibely Alves Flausino +4 more
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