Results 31 to 40 of about 3,129 (197)

The precipitation behavior of MgZn2 and Mg4Zn7 phase in Mg-6Zn (wt.%) alloy during equal-channel angular pressing

open access: yesJournal of Magnesium and Alloys, 2017
As-extruded Mg-6Zn (wt.%) Alloy was subjected to severe plastic deformation (SPD) by the equal-channel angular pressing(ECAP) at 160 oC. The results of tensile tests at room temperature showed that two passes ECAP resulted in a remarkable improvement of ...
Kai Yan   +3 more
doaj   +1 more source

ECAP process improvement based on the design of rational inclined punch shapes for the acute-angled Segal 2θ-dies: CFD 2-D description of dead zone reduction [PDF]

open access: yesMechanical Sciences, 2015
This article is focused on a 2-D fluid dynamics description of punch shape geometry improvement for Equal Channel Angular Extrusion (ECAE) or Equal Channel Angular Pressing (ECAP) of viscous incompressible continuum through acute-angled Segal 2θ-dies ...
A. V. Perig, N. N. Golodenko
doaj   +1 more source

Optimization Process Parameters of Equal Angular Channel Pressing According to the Measurement Results of Microstructural Homogeneity [PDF]

open access: yesMaterials Research, 2018
The aim of the present work is to discuss process parameters effect on microstructure evolution and formation mechanism of ultrafine grains. As plastic deformation technique Equal Channel Angular Pressing (ECAP) method used pure Ti G4 rods processed in ...
Asli Günay Bulutsuz   +2 more
doaj   +1 more source

DEVELOPMENT BY COMPUTATIONAL SIMULATION AND PERFORMANCE ANALYSIS OF AN EQUAL CHANNEL ANGULAR PRESSING DIE [PDF]

open access: yesTecnologia em Metalurgia, Materiais e Mineração, 2013
Critical geometric parameters of an Equal Channel Angular Pressing (ECAP) die suitable to plate processing were optimized by making use of the DEFORM™ software.
Phillip Springer   +3 more
doaj   +1 more source

In-Crystal Dislocation Behaviour and Hardness Changes in the Case of Severe Plastic Deformation of Aluminium Samples

open access: yesTehnički Glasnik, 2023
The presence of dislocations significantly modifies the mechanical properties of crystalline solids. Severe plastic deformation (SPD) and the most used SPD process – the Equal Channel Angular Pressing (ECAP), affect the multiplication and localized ...
Zdenka Keran   +4 more
doaj   +1 more source

The effect of equal-channel angular pressing (ECAP) on the properties of graphene reinforced aluminium matrix composites

open access: yesJournal of Composite Materials, 2020
In the present study, graphene nanosheets were synthesised by liquid phase exfoliation process, and the obtained graphene was reinforced in the rates of 0.1, 0.2, 0.3 and 0.6 wt.%. After the composites were characterised, they were exposed to Equal Channel Angular Pressing (ECAP) process.
Ömer Güler   +6 more
openaire   +4 more sources

Deformation characteristics evaluation of modified equal channel angular pressing processes

open access: yes, 2010
In current studies, equal channel angular pressing process (ECAP) and modified ECAP processes are simulated under ideal conditions to compare the deformation characteristics. The deformation behaviour is more complicated and the strain induced during the
Nagasekhar, Anumalasetty Venkata   +5 more
core   +2 more sources

Equal Channel Angular Pressing (ECAP) of hollow profiles made of titanium

open access: yesIOP Conference Series: Materials Science and Engineering, 2017
Cylindrical tubes made of commercially-pure titanium (CP-Ti) filled with various mandrels (metallic as well as non-metallic materials) were processed by Equal Channel Angular Pressing (ECAP). Different temperatures (500°C down to room temperature), routes (Bc, B120, C), tools and number of passes (1-6) were applied depending on the mandrel material ...
M Krystian, K Bryła, J Horky, B Mingler
openaire   +1 more source

Potential of multi-pass ECAP on improving the mechanical properties of a high-calcium-content Mg-Al-Ca-Mn alloy

open access: yesJournal of Magnesium and Alloys, 2019
In this study, the multi-pass equal channel angular pressing (ECAP) was employed on a high-calcium-content Mg-Al-Ca-Mn alloy to tailor its microstructure and mechanical properties. The obtained results showed that the network-shaped Mg2Ca and (Mg, Al)2Ca
He Huang   +7 more
doaj   +1 more source

Microstructure and mechanical property of a high-strength Mg–10Gd–6Y–1.5Zn–0.5Zr alloy prepared by multi-pass equal channel angular pressing

open access: yesJournal of Magnesium and Alloys, 2017
In this work, a high-strength Mg–10Gd–6Y–1.5Zn–0.5Zr (wt.%) alloy was fabricated by successive multi-pass equal channel angular pressing (ECAP). The microstructure and mechanical property of as-cast and ECAP alloys were systematically researched by X-ray
Huan Liu   +6 more
doaj   +1 more source

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