Characterizing Microstructural and Mechanical Properties of Al–Zn Alloys Processed by High-Pressure Torsion

Nguyen Q. Chinh, Péter Szommer, Jenő Gubicza, Moustafa El-Tahawy, Elena V. Bobruk, Maxim Yu Murashkin, Ruslan Z. Valiev

Research output

Abstract

Herein, the characterization of microstructures and mechanical properties of Al–Zn alloys ultrafine-grained (UFG) by using high pressure torsion (HPT) is surveyed. Emphasis is placed on the decomposition of the solid solution structures due to the HPT process, leading to unique mechanical and plastic properties of the UFG alloys. The decomposed microstructures, the grain boundaries wetted by Zn-rich layers, as well as the softening, grain boundary sliding (GBS) with usually high strain rate sensitivity and super-ductility of the HPT-processed samples are described and discussed. Furthermore, the innovation potential of intensive GBS at room temperature is briefly considered.

Original languageEnglish
Article number1900672
JournalAdvanced Engineering Materials
DOIs
Publication statusPublished - 1 Jan 2019

Fingerprint

Torsional stress
torsion
Grain boundary sliding
grain boundaries
mechanical properties
Mechanical properties
sliding
microstructure
Microstructure
ductility
plastic properties
softening
strain rate
Ductility
Strain rate
Solid solutions
Grain boundaries
solid solutions
Innovation
Plastics

Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics

Cite this

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title = "Characterizing Microstructural and Mechanical Properties of Al–Zn Alloys Processed by High-Pressure Torsion",
abstract = "Herein, the characterization of microstructures and mechanical properties of Al–Zn alloys ultrafine-grained (UFG) by using high pressure torsion (HPT) is surveyed. Emphasis is placed on the decomposition of the solid solution structures due to the HPT process, leading to unique mechanical and plastic properties of the UFG alloys. The decomposed microstructures, the grain boundaries wetted by Zn-rich layers, as well as the softening, grain boundary sliding (GBS) with usually high strain rate sensitivity and super-ductility of the HPT-processed samples are described and discussed. Furthermore, the innovation potential of intensive GBS at room temperature is briefly considered.",
keywords = "Al–Zn alloys, grain boundary sliding, high-pressure torsion, phase decomposition, ultrafine grains",
author = "Chinh, {Nguyen Q.} and P{\'e}ter Szommer and Jenő Gubicza and Moustafa El-Tahawy and Bobruk, {Elena V.} and Murashkin, {Maxim Yu} and Valiev, {Ruslan Z.}",
year = "2019",
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TY - JOUR

T1 - Characterizing Microstructural and Mechanical Properties of Al–Zn Alloys Processed by High-Pressure Torsion

AU - Chinh, Nguyen Q.

AU - Szommer, Péter

AU - Gubicza, Jenő

AU - El-Tahawy, Moustafa

AU - Bobruk, Elena V.

AU - Murashkin, Maxim Yu

AU - Valiev, Ruslan Z.

PY - 2019/1/1

Y1 - 2019/1/1

N2 - Herein, the characterization of microstructures and mechanical properties of Al–Zn alloys ultrafine-grained (UFG) by using high pressure torsion (HPT) is surveyed. Emphasis is placed on the decomposition of the solid solution structures due to the HPT process, leading to unique mechanical and plastic properties of the UFG alloys. The decomposed microstructures, the grain boundaries wetted by Zn-rich layers, as well as the softening, grain boundary sliding (GBS) with usually high strain rate sensitivity and super-ductility of the HPT-processed samples are described and discussed. Furthermore, the innovation potential of intensive GBS at room temperature is briefly considered.

AB - Herein, the characterization of microstructures and mechanical properties of Al–Zn alloys ultrafine-grained (UFG) by using high pressure torsion (HPT) is surveyed. Emphasis is placed on the decomposition of the solid solution structures due to the HPT process, leading to unique mechanical and plastic properties of the UFG alloys. The decomposed microstructures, the grain boundaries wetted by Zn-rich layers, as well as the softening, grain boundary sliding (GBS) with usually high strain rate sensitivity and super-ductility of the HPT-processed samples are described and discussed. Furthermore, the innovation potential of intensive GBS at room temperature is briefly considered.

KW - Al–Zn alloys

KW - grain boundary sliding

KW - high-pressure torsion

KW - phase decomposition

KW - ultrafine grains

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U2 - 10.1002/adem.201900672

DO - 10.1002/adem.201900672

M3 - Review article

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