Results 161 to 170 of about 2,545,542 (188)

Severe plastic deformation (SPD) processes for metals

open access: yesCIRP Annals - Manufacturing Technology, 2008
Abstract Processes of severe plastic deformation (SPD) are defined as metal forming processes in which a very large plastic strain is imposed on a bulk process in order to make an ultra-fine grained metal. The objective of the SPD processes for creating ultra-fine grained metal is to produce lightweight parts by using high strength metal for the ...
Nobuhiro Tsuji   +2 more
exaly   +8 more sources

Severe plastic deformation (SPD) of titanium at near-ambient temperature

Acta Materialia, 2006
Severe plastic deformation of titanium at near-ambient temperature has been realized using large-strain machining. The material that received the highest levels of strain, the chip, is found to have a nanocrystalline structure with ∼100 nm sized grains. This microstructure is finer than that observed in titanium following equal channel angular pressing
Alexander King   +2 more
exaly   +2 more sources

Severe plastic deformation (SPD) and nanostructured materials by machining

Journal of Materials Science, 2007
Large plastic strains between 1 and 15 can be imposed in chips formed by plane-strain (2-D) machining of metals and alloys. This approach has been used to examine microstructure changes induced by large strain deformation in model systems—copper and its alloys, precipitation-hardenable aluminum alloys, high-strength materials such as titanium, Inconel ...
Alexander King   +2 more
exaly   +2 more sources

Mechanical Properties of SPD (Severe Plastic Deformation) Processed Copper

Materials Science Forum, 2005
The mechanical behavior of nano grain-sized pure copper produced by various SPD (severe plastic deformation) processes such as ECAP (equal channel angular pressing) and ARB (accumulated roll bonding) was investigated in relation to the microstructural evolution. These processes promoted the formation of equiaxed nanoscale grains in pure copper.
Seung Zeon Han   +2 more
exaly   +2 more sources

Experimental and numerical analyses of 45 steel during three dimensional severe plastic deformation (3D-SPD)

Archives of Civil and Mechanical Engineering, 2020
Due to the limitation of huge forming load, inhomogeneity of plastic deformation, and small volume of deformation region, it is difficult to prepare bulk ultra-fine grains material (UFGM) with industry size by the existing severe plastic deformation (SPD) methods. In this study, a novel SPD method, namely 3D-SPD, was proposed.
Pengcheng Lin, Yuhua Pang
exaly   +2 more sources

Modelling Mechanical Properties of SPD Materials During and After Severe Plastic Deformation

2006
As SPD yields ultra fine grained and/or nanograined structures, modelling of properties at first requires a proper reflection of grain refinement process. A model of the author originally developed for conventional large strain hardening has been successfully adapted to conditions of extended hydrostatic pressure which appears as one of the most ...
E Schafler
exaly   +2 more sources

High Strength of Aluminium-Based Composites by Different Methods of Severe Plastic Deformation (SPD)

Materials Science Forum, 2022
Composite materials were applied to meet the demands of production efficiency on industrial because they offered the superior properties both of aspects on mechanical and physical properties were constantly being refined and developed with several methods.
Agus Pramono   +6 more
openaire   +1 more source

Microstructural and mechanical properties of magnesium alloy processed by severe plastic deformation (SPD) – A review

Materials Today: Proceedings, 2020
Abstract A review on Mechanical properties of ultra-fined grained (UFG) Magnesium based alloy using SPD process is presented in this paper. The properties discussed comprise of microstructural, optical, physical and mechanical behaviour of Ultra- fined grained magnesium alloy and effects of grain size, heat treatment, Extrusion and Annealing ...
P. Mansoor, S.M. Dasharath
openaire   +1 more source

Indentation Size Effect (ISE) in Copper Subjected to Severe Plastic Deformation (SPD)

Metallurgical and Materials Transactions A, 2014
The characteristic length scale of deformation in copper specimens subjected to severe plastic deformation (SPD) through surface mechanical attrition treatment (SMAT) was studied with indentation experiments. Annealed copper disks were shot peened with 6-mm diameter tungsten carbide spheres with an average velocity of 2.3 m/s for 15 minutes in a ...
Joshua D. Gale   +2 more
openaire   +1 more source

Synthesis of Hybrid Materials by Severe Plastic Deformation: A New Paradigm of SPD Processing

Advanced Engineering Materials, 2015
An emerging direction of research into severe plastic deformation (SPD), which we refer to as SPD‐induced synthesis of hybrid materials, is presented. At its core is the creation of inner structure made from various materials within the bulk of a solid.
Beygelzimer, Y., Estrin, Y., Kulagin, R.
openaire   +2 more sources

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