Results 301 to 310 of about 113,676 (348)

Severe Plastic Deformation of Amorphous Alloys

Materials Science Forum, 2008
The structure and mechanical properties of amorphous alloy Ni44Fe29Co15Si2B10 after severe plastic deformation (SPD) in Bridgman chamber at the different temperatures (77 and 298 K) have been studied. It is shown that the early stages of the SPD of amorphous alloy cause a noticeable decrease in microhardness HV and significant changes in the physical ...
Alex M. Glezer, Sergey V. Dobatkin, Margarita R. Plotnikova, Anna V. Shalimova   +3 more
openaire   +1 more source

Fracture of severely plastically deformed titanium

Materials Letters, 2022
Abstract The mechanical properties with emphasis on the fracture behaviour of ultrafine-grained Ti processed by high pressure torsion were evaluated. Through this process a substantial refinement of the microstructure was induced. As a consequence, a pronounced increase of tensile strength was achieved compared to conventional Ti while the ductility ...
B. Völker, S. Wurster, R. Pippan, A. Hohenwarter   +3 more
openaire   +1 more source

Paradoxes of Severe Plastic Deformation

Advanced Engineering Materials, 2003
AbstractSevere plastic deformation (SPD) can lead to emergence of microstructural features and properties in materials which are fundamentally different from the ones well known for conventional cold deformation. In particular, the instances of unusual phase transformations resulting in development of highly metastable states associated with formation ...
openaire   +1 more source

Nanostructured materials from severe plastic deformation

Nanostructured Materials, 1999
Abstract Recent results of the development of the severe plastic deformation methods to fabricate bulk nanostructured materials as well as results of their thorough structural characterization and investigations of their unusual deformation behavior and novel mechanical properties are presented.
R.Z. Valiev, I.V. Alexandrov
openaire   +1 more source

Processing Metals by Severe Plastic Deformation

Solid State Phenomena, 2005
Severe plastic deformation (SPD) is used to convert traditional coarse grain metals and alloys into ultrafine-grained (UFG) materials. UFG materials possess a number of improved mechanical and physical properties which destine them for a wide commercial use.
openaire   +1 more source

Texture Formation during Severe Plastic Deformation

Materials Science Forum, 2005
The paper represents results of computer modeling of texture formation in pure copper subjected to severe plastic deformation (SPD) realized by equal channel angular pressing (ECAP). Several polycrystalline models, namely the Taylor model, Sachs model, and self-consistent viscous plastic (VPSC) model, were applied and their predictions of texture ...
Igor V. Alexandrov, M.V. Zhilina, A.V. Scherbakov, Alexander Korshunov, P.N. Nizovtsev, A.A. Smolyakov, V.P. Solovyev, Irene J. Beyerlein   +7 more
openaire   +1 more source

Equivalent Strains in Severe Plastic Deformation

Advanced Engineering Materials, 2003
AbstractThe concept of equivalent plastic strain is discussed. Definitions may be based on kinematic arguments (like change of geometry) or on equivalence of plastic work. Complications arise when strain is accumulated in increments with variable strain path.
openaire   +1 more source

Mechanical Alloying and Severe Plastic Deformation

2007
Recently developed methods for materials processing, such as mechanical alloying, cryomilling, friction stir processing, equal-channel angular pressing, and high-pressure torsion, are reviewed in the present chapter. Over the last two decades, there has been increasing interest on the synthesis of advanced materials using mechanical alloying, and ...
Newbery, A. P., Han, B. Q., Lavernia, E. J., Suryanarayana, C., Christodoulou, J. A.   +4 more
openaire   +1 more source

GENERATING SEVERE PLASTIC DEFORMATIONS THROUGH LAMINATION

Scientific Bulletin Series D : Mining, Mineral Processing, Non-Ferrous Metallurgy, Geology and Environmental Engineering, 2017
This paper presents a theoretical and experimental study of the possible occurrence of microstructure up to nanometric level through severe plastic deformations. An aluminium alloy sample was laminated, in the form of a band and it withstood 4 passes through cylinders. As a result, ultrafine grains were obtained and the hardness of the sample increased.
openaire   +1 more source

Physics of severe plastic deformation

Uspekhi Fizicheskih Nauk, 2021
Aleksandr M. Glezer, Roman V. Sundeev, Anna V. Shalimova, Leonid S. Metlov   +3 more
openaire   +1 more source