Influence of additional severe plastic deformation at elevated temperatures on microstructure and physical-mechanical properties of ultrafine grained Al-0.4Zr alloy

T. A. Latynina, Yu M. Murashkin, R. Z. Valiev, T. S. Orlova

Research output

Abstract

The effect of high pressure torsion (HPT) at room temperature and subsequent HPT at elevated temperatures on the microstructure, mechanical and electrical properties of the Al-0.4Zr alloy has been investigated. It has been shown that the HPT treatment of the alloy with an ultrafine grained structure at elevated temperatures led to a drastic increase in strength, which is accompanied by an increase in conductivity. Experimental values and theoretical estimations of the yield stress and electrical resistivity at 77 K; are compared. Possible reasons for the observed strengthening effect are discussed.

Original languageEnglish
Article number012027
JournalIOP Conference Series: Materials Science and Engineering
Volume447
Issue number1
DOIs
Publication statusPublished - 21 Nov 2018
EventOpen School-Conference of NIS Countries on Ultrafine Grained and Nanostructured Materials 2018, UFGNM 2018 - Ufa, Bashkortostan Republic
Duration: 1 Oct 20185 Oct 2018

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Torsional stress
Plastic deformation
Mechanical properties
Microstructure
Temperature
Yield stress
Electric properties
Ultrafine

Scopus subject areas

  • Materials Science(all)
  • Engineering(all)

Cite this

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abstract = "The effect of high pressure torsion (HPT) at room temperature and subsequent HPT at elevated temperatures on the microstructure, mechanical and electrical properties of the Al-0.4Zr alloy has been investigated. It has been shown that the HPT treatment of the alloy with an ultrafine grained structure at elevated temperatures led to a drastic increase in strength, which is accompanied by an increase in conductivity. Experimental values and theoretical estimations of the yield stress and electrical resistivity at 77 K; are compared. Possible reasons for the observed strengthening effect are discussed.",
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AU - Valiev, R. Z.

AU - Orlova, T. S.

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AB - The effect of high pressure torsion (HPT) at room temperature and subsequent HPT at elevated temperatures on the microstructure, mechanical and electrical properties of the Al-0.4Zr alloy has been investigated. It has been shown that the HPT treatment of the alloy with an ultrafine grained structure at elevated temperatures led to a drastic increase in strength, which is accompanied by an increase in conductivity. Experimental values and theoretical estimations of the yield stress and electrical resistivity at 77 K; are compared. Possible reasons for the observed strengthening effect are discussed.

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