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Role of Grain Size and Shape in Superplasticity of Metals
Frontiers in Materials, 2021 Superplasticity is characterized by an elongation to failure of >300% and a measured strain rate sensitivity (SRS), close to 0.5. The superplastic flow is controlled by diffusion processes; it requires the testing temperature of 0.5Tm or greater where
Zhaoyang Lu +2 more
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Microstructure of Joints Processed by Ultrasonic Consolidation of Nickel Sheets
Metals, 2022 Ultrasonic consolidation is an advanced process of sequential solid-state joining of metal foils or sheets by ultrasonic welding. This process was used for joining six sheets of nickel with a thickness of 0.2 mm.
Elvina R. Shayakhmetova +3 more
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Metals, 2022 Superplasticity refers to the ability of some materials to pull out to tensile elongations of 400% or more when the strain rate sensitivity is ~0.5. The first report of true superplastic flow was published in 1934 in experiments conducted in England ...
Jittraporn Wongsa-Ngam +1 more
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High-Temperature Deformation Behavior of the AZ31 Alloy Processed by Double-Sided FSW Technology
Metals, 2022 Generally, AZ31 magnesium alloys have poor formation ability near room temperature. This material, with ultrafine grains, usually exhibits excellent superplasticity at high temperature.
Suna Cha, Hongliang Hou, Yanling Zhang
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Metals, 2020 The newly designed ingot-metallurgy nickel-based superalloy SDZhS-15 intended for disc applications at operating temperatures up to 800–850 °C was subjected to homogenization annealing and canned forging at subsolvus temperatures, followed by solid ...
Valery Imayev +6 more
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Journal of Materials Research and Technology, 2021 Friction stir processing (FSP), an adaption of the solid-state joining process friction stir welding (FSW), is now a widely recognized severe plastic deformation (SPD) technique.
Deepika Harwani +4 more
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Recent Development of Superplasticity in Aluminum Alloys: A Review
Metals, 2020 Aluminum alloys can be used in the fabrication of intricate geometry and curved parts for a wide range of uses in aerospace and automotive sectors, where high stiffness and low weight are necessitated.
Laxman Bhatta +5 more
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Frontier Materials & TechnologiesOne of the most effective ways to increase the processing plasticity of advanced superalloys (heat-resistant nickel-based alloys) is the formation of an ultrafine-grained (UFG) microstructure in bulk semi-finished products.
Elvina V. Galieva +2 more
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Room-Temperature Superplasticity in an Ultrafine-Grained Magnesium Alloy
Scientific Reports, 2017 Superplasticity, a phenomenon of high tensile elongation in polycrystalline materials, is highly effective in fabrication of complex parts by metal forming without any machining.
Kaveh Edalati +6 more
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Recent Developments in Superplasticity
, 1999 The phenomenon of superplasticity is explored in the range of high strain rate for both nanocrystalline and microcrystalline materials. True tensile superplasticity has been demonstrated in nanocrystalline grain size range.
A. K. Mukherjee +2 more
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