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Superplasticity in Ultrafine-Grained Materials.
Reviews on Advanced Materials Science, 2018 Superplasticity refers to the ability of a polycrystalline solid to exhibit a high elongation, of at least 400% or more, when testing in tension. The basic characteristics of superplastic flow are now understood and a theoretical model is available to ...
Kawasaki Megumi, Langdon Terence G.
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MATEC Web of Conferences, 2015 Materials with ultrafine grain sizes are attractive for use in micro-forming operations. High-pressure torsion (HPT) is an effective technique that allows disc materials subjected to torsional deformation to generate microstructures with significant ...
Huang Yi, Xu Jie, Langdon Terence G.
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Fracture Kinetics and Mechanisms of Ultrafine-Grained Materials during Fatigue Tests in the Low-Cycle Fatigue Region [PDF]
Metals, 2023 In this paper, the fracture kinetics and mechanisms in the low-cycle fatigue region were analyzed for different ultrafine-grained (UFG) materials with body-centered cubic (bcc), hexagonal close-packed (hcp) and face-centered cubic (fcc) lattices.
Gennadiy V. Klevtsov +5 more
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Mechanical behavior of ultrafine-grained materials under combined static and dynamic loadings [PDF]
EPJ Web of Conferences, 2015 Ultrafine-grained (UFG) materials have extensive prospects for engineering application due to their excellent mechanical properties. However, the grain size decrease reduces their strain hardening ability and makes UFG materials more susceptible to ...
Guo Y.Z. +4 more
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Evaluating the flow processes in ultrafine-grained materials at elevated temperatures [PDF]
Materials Research, 2013 When polycrystalline materials are tested in tension at elevated temperatures, the flow mechanisms depend upon various parameters including the temperature of testing, the applied stress and the material grain size.
Megumi Kawasaki, Terence G. Langdon
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Accumulative Roll Bonding of Aluminum/Stainless Steel Sheets [PDF]
Journal of Ultrafine Grained and Nanostructured Materials, 2017 An Al/Stainless Steel/Al lamellar composite was produced by roll bonding of the starting sheets at 400 °C. Afterward, the roll bonded sheet was cut in half and the accumulative roll bonding (ARB) process at room temperature was applied seven times.
Navid Mohammad Nejad Fard +3 more
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Machinability Features of Ti-6Al-4V Alloy with Ultrafine-Grained Structure
Metals, 2023 Titanium alloys are widely used in various industries. The most common and well-known titanium alloy is titanium alloy with aluminum and vanadium (Ti-6Al-4V). This alloy is used, for example, in the manufacture of aircraft engines.
Irina Semenova +5 more
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Ultrafine-Grained Stainless Steels after Severe Plastic Deformation
Metals, 2023 The aim of the present review is to summarize the recent achievements in the development of ultrafine-grained austenitic/ferritic stainless steels processed by large strain deformation.
Pavel Dolzhenko +4 more
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Current Trends to Obtain Metals and Alloys with Ultrafine-Grained Structure
Успехи физики металлов, 2022 Obtaining materials with improved and properly balanced physical and mechanical properties remains one of the main goals of materials science. At the same time, one of the most promising ways to improve the properties of metallic materials without ...
A. B. Naizabekov, A. S. Kolesnikov, M. A. Latypova, T. D. Fedorova, and A. D. Mamitova
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Mechanical properties of ultra-fine grained strips under ultrasonic vibration extrusion cutting
Journal of Materials Research and Technology, 2023 Ultrafine grained materials often have superior mechanical properties. In order to complement the advantages of other preparation methods of ultrafine materials, a new process of ultrasonic vibration extrusion cutting was proposed to induce severe ...
Zhuangfei Wang +3 more
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