Localisation of plastic deformation in friction stir and electron beam copper welds

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Localisation of plastic deformation in friction stir and electron beam copper welds. / Forsström, Antti; Luumi, Lauri; Bossuyt, Sven; Hänninen, Hannu.

In: Materials Science and Technology, Vol. 33, No. 9, 2017, p. 1119-1129.

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@article{4c25f9af7f524cea917bd1b2262a1d7d,
title = "Localisation of plastic deformation in friction stir and electron beam copper welds",
abstract = "Optical strain measurement through digital image correlation during tensile testing was utilised to study the effect of strain rate and welding defects on localisation of plastic deformation in friction stir welded and electron beam welded phosphorous-alloyed oxygen-free copper. Welds cut from fullsize nuclear waste copper canisters and additionally made defective welds were studied. Optical strain measurement represents a new way of studying deformation of materials and obtaining local material data. The data was used to construct strain maps and estimate local true stress–strain curves. Using Gini oefficients to quantify strain localisation, it appears that the lower strain rate resulted in slightly faster localisation of plastic deformation with lower stress level.",
author = "Antti Forsstr{\"o}m and Lauri Luumi and Sven Bossuyt and Hannu H{\"a}nninen",
year = "2017",
doi = "10.1080/02670836.2016.1243337",
language = "English",
volume = "33",
pages = "1119--1129",
journal = "Materials Science and Technology",
issn = "0267-0836",
number = "9",

}

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TY - JOUR

T1 - Localisation of plastic deformation in friction stir and electron beam copper welds

AU - Forsström, Antti

AU - Luumi, Lauri

AU - Bossuyt, Sven

AU - Hänninen, Hannu

PY - 2017

Y1 - 2017

N2 - Optical strain measurement through digital image correlation during tensile testing was utilised to study the effect of strain rate and welding defects on localisation of plastic deformation in friction stir welded and electron beam welded phosphorous-alloyed oxygen-free copper. Welds cut from fullsize nuclear waste copper canisters and additionally made defective welds were studied. Optical strain measurement represents a new way of studying deformation of materials and obtaining local material data. The data was used to construct strain maps and estimate local true stress–strain curves. Using Gini oefficients to quantify strain localisation, it appears that the lower strain rate resulted in slightly faster localisation of plastic deformation with lower stress level.

AB - Optical strain measurement through digital image correlation during tensile testing was utilised to study the effect of strain rate and welding defects on localisation of plastic deformation in friction stir welded and electron beam welded phosphorous-alloyed oxygen-free copper. Welds cut from fullsize nuclear waste copper canisters and additionally made defective welds were studied. Optical strain measurement represents a new way of studying deformation of materials and obtaining local material data. The data was used to construct strain maps and estimate local true stress–strain curves. Using Gini oefficients to quantify strain localisation, it appears that the lower strain rate resulted in slightly faster localisation of plastic deformation with lower stress level.

U2 - 10.1080/02670836.2016.1243337

DO - 10.1080/02670836.2016.1243337

M3 - Article

VL - 33

SP - 1119

EP - 1129

JO - Materials Science and Technology

JF - Materials Science and Technology

SN - 0267-0836

IS - 9

ER -

ID: 9599431