Experimental Investigation of the Equal Channel Forward Extrusion Process

Among all recognized severe plastic deformation techniques, a new method, called the equal channel forward extrusion process, has been experimentally studied. It has been shown that this method has similar characteristics to other severe plastic deformation methods, and the potential of this new met...

Full description

Saved in:
Bibliographic Details
Published in:Metals (Basel ) 2015-03, Vol.5 (1), p.471-483
Main Authors: Ebrahimi, Mahmoud, Djavanroodi, Faramarz, Tiji, Sobhan, Gholipour, Hamed, Gode, Ceren
Format: Article
Language:English
Subjects:
Aluminum
Annealing
Approximation
Deformation
ECFE
Electron back scatter
Electron back scatter diffraction
Forward extrusion
Grain boundaries
Grain size
Hardness measurement
impact behavior
Impact loads
Impact tests
Mechanical engineering
Mechanical properties
Plastic deformation
Shear stress
SPD
Temperature
Ultimate tensile strength
Yield strength
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Among all recognized severe plastic deformation techniques, a new method, called the equal channel forward extrusion process, has been experimentally studied. It has been shown that this method has similar characteristics to other severe plastic deformation methods, and the potential of this new method was examined on the mechanical properties of commercial pure aluminum. The results indicate that approximate 121%, 56%, and 84% enhancements, at the yield strength, ultimate tensile strength, and Vickers micro-hardness measurement are, respectively, achieved after the fourth pass, in comparison with the annealed condition. The results of drop weight impact test showed that the increment of 26% at the impact force, and also decreases of 32%, 15%, and 4% at the deflection, impulse, and absorbed energy, are respectively attained for the fourth pass when compared to the annealed condition. Furthermore, the electron backscatter diffraction examination revealed that the average grain size of the final pass is about 480 nm.
ISSN:2075-4701
2075-4701
DOI:10.3390/met5010471