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Variation of transverse strain coefficient in deformed metals

The macroscopic heterogeneity of plastic flow under uniaxial tensile testing of flat Fe-Cr-Ni polycrystal samples is studied within a temperature range of 180 K < T < 297 K. In particular, the regularities of plastic deformation are highlighted via accurate reconstruction of displacement vecto...

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Main Authors:	Barannikova, Svetlana A., Iskhakova, Polina V.
Format:	Conference Proceeding
Language:	English
Subjects:	Coefficient of variation Distortion Fields (mathematics) Heterogeneity Mathematical analysis Plastic deformation Plastic flow Polycrystals Spatial distribution Tensile tests Tensors
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creator	Barannikova, Svetlana A. Iskhakova, Polina V.
description	The macroscopic heterogeneity of plastic flow under uniaxial tensile testing of flat Fe-Cr-Ni polycrystal samples is studied within a temperature range of 180 K < T < 297 K. In particular, the regularities of plastic deformation are highlighted via accurate reconstruction of displacement vector fields using speckle photography and calculation of plastic distortion tensor components. It is found that the plastic flow manifests itself within the entire temperature range under consideration. The spatial distributions of plastic distortion tensor components, including local longitudinal, transverse, shear, and rotational, are analyzed as well. At last, the nonlinear change in the coefficient of transverse deformation from the level of acting stresses is established.
doi_str_mv	10.1063/5.0162718
format	conference_proceeding
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In particular, the regularities of plastic deformation are highlighted via accurate reconstruction of displacement vector fields using speckle photography and calculation of plastic distortion tensor components. It is found that the plastic flow manifests itself within the entire temperature range under consideration. The spatial distributions of plastic distortion tensor components, including local longitudinal, transverse, shear, and rotational, are analyzed as well. At last, the nonlinear change in the coefficient of transverse deformation from the level of acting stresses is established.</description><identifier>ISSN: 0094-243X</identifier><identifier>EISSN: 1551-7616</identifier><identifier>DOI: 10.1063/5.0162718</identifier><identifier>CODEN: APCPCS</identifier><language>eng</language><publisher>Melville: American Institute of Physics</publisher><subject>Coefficient of variation ; Distortion ; Fields (mathematics) ; Heterogeneity ; Mathematical analysis ; Plastic deformation ; Plastic flow ; Polycrystals ; Spatial distribution ; Tensile tests ; Tensors</subject><ispartof>AIP conference proceedings, 2023, Vol.2899 (1)</ispartof><rights>Author(s)</rights><rights>2023 Author(s). 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identifier	ISSN: 0094-243X
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issn	0094-243X 1551-7616
language	eng
recordid	cdi_proquest_journals_2864353538
source	American Institute of Physics:Jisc Collections:Transitional Journals Agreement 2021-23 (Reading list)
subjects	Coefficient of variation Distortion Fields (mathematics) Heterogeneity Mathematical analysis Plastic deformation Plastic flow Polycrystals Spatial distribution Tensile tests Tensors
title	Variation of transverse strain coefficient in deformed metals
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