Hardening of pure metals by high-pressure torsion: A physically based model employing volume-averaged defect evolutions

MJ Starink, X Cheng, S Yang - Acta Materialia, 2013 - Elsevier
A physically based model to predict the increment of hardness and grain refinement of pure
metals due to severe plastic deformation by high-pressure torsion (HPT) is proposed. The …

High-pressure torsion of pure metals: Influence of atomic bond parameters and stacking fault energy on grain size and correlation with hardness

K Edalati, Z Horita - Acta Materialia, 2011 - Elsevier
The grain size in pure elements (magnesium, aluminum, silicon, titanium, vanadium,
chromium, iron, nickel, copper, zinc, germanium, zirconium, niobium, molybdenum …

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 …

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 …

Dislocation density-based finite element analysis of large strain deformation behavior of copper under high-pressure torsion

DJ Lee, EY Yoon, DH Ahn, BH Park, HW Park, LJ Park… - Acta Materialia, 2014 - Elsevier
The paper is concerned with large strain deformation behavior of metallic materials as
exemplified by copper under high-pressure torsion (HPT). To that end, the evolution of …

Effect of temperature rise on microstructural evolution during high-pressure torsion

K Edalati, Y Hashiguchi, PHR Pereira, Z Horita… - Materials Science and …, 2018 - Elsevier
Dynamic recrystallization occurs at room temperature during high-pressure torsion (HPT)
leading to the formation of ultrafine grains with high angles of misorientation. There are …

Microstructure development and hardening during high pressure torsion of commercially pure aluminium: Strain reversal experiments and a dislocation based model

J Zhang, N Gao, MJ Starink - Materials Science and Engineering: A, 2011 - Elsevier
The effect of strain reversal on hardening due to high pressure torsion (HPT) was
investigated using commercially pure aluminium. Hardening is lower for cyclic HPT (c-HPT) …

[HTML][HTML] Evolution of hardness in ultrafine-grained metals processed by high-pressure torsion

M Kawasaki, HJ Lee, B Ahn, AP Zhilyaev… - Journal of Materials …, 2014 - Elsevier
The processing of metals through the application of high-pressure torsion (HPT) provides
the potential for achieving exceptional grain refinement in bulk metals. Numerous reports …

Influence of dislocation–solute atom interactions and stacking fault energy on grain size of single-phase alloys after severe plastic deformation using high-pressure …

K Edalati, D Akama, A Nishio, S Lee, Y Yonenaga… - Acta Materialia, 2014 - Elsevier
Several pure metals (magnesium, aluminum, iron, cobalt, nickel, copper, zinc, palladium and
silver) and single-phase Al–Mg, Al–Ag, Al–Cu, Cu–Al, Cu–Zn, Pd–Ag, Ni–Fe and Ni–Co …

Interpretation of hardness evolution in metals processed by high-pressure torsion

M Kawasaki, RB Figueiredo, Y Huang… - Journal of Materials …, 2014 - Springer
The processing of metals through the application of high-pressure torsion (HPT) provides
the potential for achieving exceptional grain refinement in bulk disks. Numerous reports are …