Ten years of severe plastic deformation (SPD) in Iran, part I: Equal-channel angular pressing (ECAP)

E Bagherpour, M Reihanian, M Pardis, R Ebrahimi… - 2018 - bura.brunel.ac.uk
The superior properties of ultrafine-grained materials fabricated by severe plastic
deformation (SPD) have attracted the attention of many researchers around the world …

Ultrasonic assisted equal channel angular extrusion (UAE) as a novel hybrid method for continuous production of ultra-fine grained metals

S Bagherzadeh, K Abrinia, Q Han - Materials Letters, 2016 - Elsevier
The propagation of high-intensity ultrasonic vibration (UV) into metals can influence on
mechanical and microstructure properties. The main objective of this research is to introduce …

CFD 2D simulation of viscous flow during ECAE through a rectangular die with parallel slants

AV Perig, NN Golodenko - The International Journal of Advanced …, 2014 - Springer
The objective of this article is the description of advantages of a slanted die geometry, used
for equal channel angular extrusion (ECAE) of materials. The prime novelty statement of the …

A computational investigation of equal channel angular pressing of molybdenum validated by experiments

E Priel, B Mittelman, N Trabelsi, Y Cohen… - Journal of Materials …, 2019 - Elsevier
Abstract Equal Channel Angular Pressing (ECAP) is a metal forming process which is
commonly used to refine grain structure in metals. The process involves pushing a billet …

[PDF][PDF] FEM-based deformation regression analysis of ECAE strains

AV Perig, IA Matveyev - FME Transactions, 2019 - pdfs.semanticscholar.org
The present article is focused on the regression-based generalization of FEM simulation
results, derived through the introduction of QForm 2D FEM software to copper workpieces …

An upper bound solution for twist extrusion process

MS Salehi, N Anjabin, HS Kim - Metals and Materials International, 2014 - Springer
Twist extrusion, a promising severe plastic deformation technique for grain refinement down
to ultrafine/nanocrystalline microstructures, was introduced as an attempt to provide large …

[PDF][PDF] An upper bound analysis of T-shaped equal channel angular pressing

K Wei, P Liu, Z Ma, W Wei, IV Alexandrov… - Acta Metallurgica …, 2015 - researchgate.net
T-shaped equal channel angular pressing (T-shaped ECAP) is a novel process of severe
plastic deformation (SPD). The maximum effective strain per pass in the T-shaped ECAP is …

[PDF][PDF] Alternative study of a bevel punch-assisted ECAE scheme

AV Perig, NN Golodenko - Acta Metallurgica Slovaca, 2018 - pdfs.semanticscholar.org
It is a common practice in pressure forming to make an Equal Channel Angular Extrusion
(ECAE) of a workpiece through a die with channel intersection angle 2θ= 90 using a …

Modular procedure to improve the application of the upper-bound theorem in forging

F Martín, AM Camacho, R Domingo… - Materials and …, 2013 - Taylor & Francis
The application of the Upper Bound Theorem (UBT) to plane strain forging processes using
Triangular Rigid Blocks (TRB) is not a simple task when trying to adapt the blocks to different …

New formulas of shear strain during equal-channel angular pressing process with consideration of influences of velocity and motion trajectory

D Zhang, Z Li, Y Tong, Y Zheng, L Li - Journal of Iron and Steel Research …, 2016 - Springer
The influences of die parameters on shear strain were investigated by using two-
dimensional finite element simulation. New formulas of shear strain were proposed …