Results 21 to 30 of about 38,287 (265)
Microstructure and Properties Evaluation of Ductile Cast Iron Subjected to Hot Plastic Deformation and Ambient Temperature Compression [PDF]
Archives of Metallurgy and Materials, 2023 The as-cast microstructure of ductile cast iron (DI) was investigated using light microscopy (LM) and SEM techniques. Further the influence of hot plastic extrusion at 1000°C with plastic strain in the range of 20-60-80% on the transformation of the as ...
A.S. Chaus +3 more
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In-Depth Comparison of an Industrially Extruded Powder and Ingot Al Alloys
Metals, 2020 An industrial press was used to consolidate compacted aluminum powder with a nominal diameter in the range of 1 µm. Direct and indirect hot-extrusion processes were used, and suitable process parameters were determined from heating conditions, ram speeds
David Bombač +4 more
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Metals, 2021 The dynamic recrystallization (DRX) behavior of as-extruded AM50 magnesium alloy was modelled and simulated by a cellular automaton (CA) method. Isothermal compression experiments were conducted, and the characteristic parameters in the CA model were ...
Dayu Shu +5 more
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Hot Workability of 300M Steel Investigated by In Situ and Ex Situ Compression Tests
Metals, 2019 In this work, hot compression experiments of 300M steel were performed at 900−1150 °C and 0.01−10 s−1. The relation of flow stress and microstructure evolution was analyzed. The intriguing finding was that at a lower strain rate (0.
Rongchuang Chen +3 more
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Hardening and Dynamic Recovery During Hot Compression Test of Copper Simulated as Viscoplastic Material [PDF]
Materials Research, 2019 The Norton-Bailey equation was used to simulate by finite elements the hardening and dynamic recovery of copper during the hot compression tests. The constants of Norton-Bailey equation were determined from the Voce-Kocks model.
Gabriel Torrente Prato
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Crystals, 2022 Hot compression experiments were performed on alloy 5182 with small additions of Sc and Zr. The 5182 alloy containing Sc and Zr is critical for expanding the 5182 alloy’s range of applications, and a thorough understanding of its thermal processing ...
Jingxiao Li +5 more
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The Hot Deformation Activation Energy of 7050 Aluminum Alloy under Three Different Deformation Modes
Metals, 2016 In this study, the hot deformation activation energy values of 7050-T7451 aluminum alloy, calculated with two different methods under three deformation modes, were compared.
Deli Sang, Ruidong Fu, Yijun Li
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Hot Particle Drag in Compressible Gas [PDF]
Aerosol Science and Technology, 1990 This paper examines the drag force felt by relatively large (250 micron) MgF2 particles moving inside the exhaust of a magnesium-teflon flare burned at reduced pressure (0.02 atm). It is shown that the well-known Stokes formula for the drag on a spherical particle must be modified to take into account the MgF2 particles' elevated temperature with ...
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Journal of Materials Research and TechnologyPre-deformation is a cost-efficient method to control the microstructure and mechanical properties of wrought magnesium (Mg) alloys. It introduces twins that promote dynamic recrystallization during hot deformation, thereby improving hot workability and ...
Junsong Jin +10 more
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Metals, 2022 In this paper, the VPSC (visco-plastic self-consistent) model was improved by considering the effect of heating rate. The hot compression deformation behavior and texture evolution of AA7075 were studied based on the improved VPSC model and EBSD ...
Siyuan Zhu +3 more
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