Effects of pressure and number of turns on microstructural homogeneity developed in high-pressure double torsion

M Jahedi, IJ Beyerlein, MH Paydar, S Zheng… - … Materials Transactions A, 2017 - Springer
With electron backscatter diffraction and transmission electron microscopy, we study the rate
of grain refinement and the uniformity in the evolution of microstructure in commercial purity …

Texture evolution and enhanced grain refinement under high-pressure-double-torsion

M Jahedi, MH Paydar, S Zheng, IJ Beyerlein… - Materials Science and …, 2014 - Elsevier
We present a severe plastic deformation process called high-pressure-double-torsion
(HPDT) for grain size refinement in metallic polycrystals. Like standard high-pressure …

Effect of grain shape on texture formation during severe plastic deformation of pure copper

M Jahedi, IJ Beyerlein, MH Paydar… - Advanced Engineering …, 2018 - Wiley Online Library
In this study, the authors use a combination of electron backscattered diffraction and
polycrystal plasticity modeling to study the effect of grain shape on texture development in …

Microstructural evolution and grain refinement in a Cu-Zr alloy processed by high-pressure torsion

J Wongsa-Ngam, T Langdon - Materials Science Forum, 2014 - Trans Tech Publ
A copper alloy, Cu-0.1% Zr, was processed at room temperature by high-pressure torsion
(HPT) in order to evaluate the microstructural evolution and grain refinement mechanism …

Creation of heterogeneous microstructures in copper using high-pressure torsion to enhance mechanical properties

M Jamalian, M Hamid, N De Vincentis, Q Buck… - Materials Science and …, 2019 - Elsevier
This paper studies the effects of high-pressure torsion (HPT) at ambient temperature on
microstructural evolution and mechanical properties enhancement in pure copper. The aim …

Evolution of microstructural homogeneity in copper processed by high-pressure torsion

XH An, SD Wu, ZF Zhang, RB Figueiredo, N Gao… - Scripta Materialia, 2010 - Elsevier
Disks of coarse-grained pure Cu were processed by high-pressure torsion (HPT) and the
microhardness and microstructural parameters were used to reveal the evolution of …

Significance of homologous temperature in softening behavior and grain size of pure metals processed by high-pressure torsion

K Edalati, Z Horita - Materials Science and Engineering: A, 2011 - Elsevier
High purity metals with low melting temperatures such as indium (99.999%), tin (99.9%),
lead (99%), zinc (99.99%) and aluminum (99.99%) were processed using high-pressure …

Microstructure and microtexture in pure copper processed by high-pressure torsion

KJ Al-Fadhalah, SN Alhajeri, AI Almazrouee… - Journal of Materials …, 2013 - Springer
The evolution of microstructure and microtexture in high purity copper was examined after
processing by high-pressure torsion (HPT). Copper disks were annealed for 1 h at 800° C …

Using finite element modeling to examine the temperature distribution in quasi-constrained high-pressure torsion

RB Figueiredo, PHR Pereira, MTP Aguilar, PR Cetlin… - Acta Materialia, 2012 - Elsevier
Processing by quasi-constrained high-pressure torsion (HPT) is important for achieving
substantial grain refinement in bulk solids, but very little information is available at present …

Different models of hardness evolution in ultrafine-grained materials processed by high-pressure torsion

M Kawasaki - Journal of Materials Science, 2014 - Springer
High-pressure torsion (HPT) is an attractive processing method in severe plastic deformation
techniques involving the application of high compressive pressure with concurrent torsional …