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INFLUENCE OF GRAIN SIZE DISTRIBUTION ON THE MECHANICAL BEHAVIOR OF MATERIALS IN A WIDE RANGE OF STRAIN RATES
Linköping University, Department of Physics, Chemistry and Biology, Theoretical Physics. Linköping University, Faculty of Science & Engineering. Natl Res Tomsk State Univ TSU, Russia.ORCID iD: 0000-0003-1634-5882
Natl Res Tomsk State Univ TSU, Russia.
Natl Res Tomsk State Univ TSU, Russia.
Natl Res Tomsk State Univ TSU, Russia.
2017 (English)In: PROCEEDINGS OF THE 7TH INTERNATIONAL CONFERENCE ON MECHANICS AND MATERIALS IN DESIGN (M2D2017), INEGI-FEUP , 2017, p. 1749-1762Conference paper, Published paper (Refereed)
Abstract [en]

This work compares the mechanical behavior of alloys with influence of grain size distribution on the in a wide range of strain rates. Constitutive model was proposed for describing the inelastic deformation and damage of alloys with face centered cubic and hexagonal close packed structures and distribution of grain sizes. It was shown that the dependences of the yield stress on logarithm of normalized strain rate for aluminium and magnesium alloys with a bimodal distribution of grains and coarse-grained alloys are similar. The yield stress at room temperature of the magnesium and aluminium alloy increased on 10 - 15 % in comparison with a coarse-grained alloy if the volume fracture of the UFG grains is close to the percolation threshold.

Place, publisher, year, edition, pages
INEGI-FEUP , 2017. p. 1749-1762
Keywords [en]
grain size; high strain rates; light alloys; bimodal grain size distribution; strength; ductility; ultrafine-grained alloy; aluminium; magnesium
National Category
Metallurgy and Metallic Materials
Identifiers
URN: urn:nbn:se:liu:diva-147482ISI: 000427886600323ISBN: 978-989-98832-7-7 (print)OAI: oai:DiVA.org:liu-147482DiVA, id: diva2:1199541
Conference
7th International Conference on Mechanics and Materials in Design (M2D)
Note

Funding Agencies|Grant from the President of Russian Federation [MK-2690.2017.8, C.-1916.2015.2]

Available from: 2018-04-20 Created: 2018-04-20 Last updated: 2018-04-20

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CiteExportLink to record
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Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
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  • Other style
More styles
Language
  • de-DE
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  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
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  • asciidoc
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