Results 51 to 60 of about 339 (87)

Evaluating the flow processes in ultrafine-grained materials at elevated temperatures

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
doaj  

Grain Growth during Annealing of Ultrafine-Grained and Nanomaterials

Успехи физики металлов
Ultrafine-grained metals and alloys with a submicrocrystalline structure in some cases demonstrate a set of unique properties, for example, high strength and hardness, low-temperature superplasticity at high strain rates, and improved electrical and ...
I.E. Volokitina, T.D. Fedorova, and D.N. Lavrinyuk
doaj   +1 more source

The Impact of Particle Reinforcement with Al2O3, TiB2, and TiC and Severe Plastic Deformation Treatment on the Combination of Strength and Electrical Conductivity of Pure Aluminum

Metals, 2019
It has been found that a high electrical conductivity of 63.1%, the International Annealed Copper Standard (IACS), and high mechanical properties are achieved by the initial aluminum alloy after undergoing four cycles of the severe plastic deformation ...
Ilya A. Zhukov, Alexander A. Kozulin, Anton P. Khrustalyov, Alexey E. Matveev, Vladimir V. Platov, Alexander B. Vorozhtsov, Tatyana V. Zhukova, Vladimir V. Promakhov   +7 more
doaj   +1 more source

Severe Plastic Deformed Pure Aluminum by Equal Channel Angular Pressing

The Annals of “Dunarea de Jos” University of Galati. Fascicle IX, Metallurgy and Materials Science, 2009
Samples of an aluminum alloy were subjected to an equal channel angular pressing (ECAP) at room temperature for one pass. For the several specimens severe plastic deformation process was interrupted to observe the material flow.
Gheorghe GURAU, Carmela GURAU, Dinel TANASE   +2 more
doaj  

Cryogenic high-pressure torsion of a single-phase CoCrFeNiMn high-entropy alloy: Nanoindentation strain-rate sensitivity and creep deformation behavior

Materials & Design
The localized mechanical behavior of a high entropy alloy (HEA) by analyzing its deformation mechanisms under different indentation loading levels and loading rates assessed.
M. Zare Ghomsheh, F. Khodabakhshi, G. Khatibi, B. Weiss, C. Rentenberger, E. Schafler   +5 more
doaj   +1 more source

Mechanical and corrosion properties of aluminium alloy EN AW 6082 after severe plastic deformation (SPD)

Metalurgija, 2015
The aim had been to study changes in the properties of aluminium alloy AlSiMgMn. Influence of SPD of the mechanical properties had increased (Rm by 86 MPa, Ro0,2 by 175 MPa, while A had decreased to 20 %). The corrosion potentials had been evaluated in the environment of H2O and in SARS. After SPD was observed in the environment of H2O, that resistance
Lacková, P., Buršák, M., Kvačkaj, T., Halama, M.   +3 more
openaire   +2 more sources

Modeling the effect of Mg addition on microstructure and strength of aluminum during severe plastic deformation

Journal of Materials Research and Technology
Although Al–Mg alloys have various desirable properties, to broaden the applications, it is needed to increase the strength of these alloys. Severe plastic deformation (SPD) is a candidate method for this purpose.
H. Parvin, M. Kazeminezhad
doaj   +1 more source

The Control of Flow Localization in the Post Severe Plastic Deformation (SPD) Forming of Aluminum Through the Application of Low Strain Amplitude Multidirectional (LSA-MDF) Forging

Materials Research
Severe Plastic Deformation (SPD) of metals leads to their strengthening and losses in the work hardening capacity. The latter causes flow localization upon subsequent forming of the material. The application of Low Strain Amplitude Multi-Directional Forging (LSA-MDF) after SPD regenerates the material work hardening capacity and available results cover
C.G. de Faria, M.T.P. Aguilar, P.R. Cetlin   +2 more
openaire   +2 more sources

Review of Metal Screw Extrusion: State of the Art and Beyond

Metals
Metal screw extrusion (MSE) is a continuous, solid-state forming method utilizing an inherently high degree of deformation to consolidate fragmented input materials into a solid bulk by breaking their oxide skins.
Geir Kvam-Langelandsvik, Kristian Grøtta Skorpen, Jens Christofer Werenskiold, Hans Jørgen Roven   +3 more
doaj   +1 more source

Advancing Severe Plastic Deformation for Tubular Samples: Systematic Review and Machine Learning Optimization

MetalMat
Severe Plastic Deformation (SPD) is a widely recognized method for producing ultrafine‐grained (UFG) and nano‐structured materials with superior mechanical properties by imposing high strains without the need for alloying elements or secondary ...
Eman M. Zayed, Abdulrahman I. Alateyah, Waleed H. El‐Garaihy, Mahmoud Shaban, Majed Alinizzi, Nahed A. El‐Mahallawy   +5 more
doaj   +1 more source