ESTIMATION AND UTILIZATION OF STRUCTURE ANISOTROPY IN FORMING PIECES

In most of cases, technological processing leads to microstructure anisotropy of material. Results obtained from the analysis of anisotropy can be used for evaluation of material properties and parameters of technology processes. Stereological metallography was used for describing of structure aniso...

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Main Author: M. Martinkovic
Format: Article
Language:English
Published: University of Chemistry and Technology, Prague 2017-03-01
Series:Ceramics-Silikáty
Subjects:
Online Access: http://www.ceramics-silikaty.cz/index.php?page=cs_detail_doi&id=878
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author M. Martinkovic
author_facet M. Martinkovic
author_sort M. Martinkovic
collection DOAJ
description In most of cases, technological processing leads to microstructure anisotropy of material. Results obtained from the analysis of anisotropy can be used for evaluation of material properties and parameters of technology processes. Stereological metallography was used for describing of structure anisotropy. In case of plastically deformed material, degree of orientation of grain boundaries was determined. Grain boundaries are decomposed into isotropic, planar and linear oriented components - specific surface area of grain boundaries and these parameters were measured using oriented test lines stereology method. These results were used for estimation of local plastic deformation using conversion model of orientation grain boundaries to deformation of grains. Our proposed conversion method enables estimation of local plastic deformation in arbitrary place of body with arbitrary state of initial deformation. In case of short fibre reinforced thermoplastics oriented test plane stereology method was used for estimation of experimental orientation of fibres. Degree of orientation was estimated from the number of intersections of fibres with test planes and from these results components of an orientation tensor are estimated. This method is very simple in comparison with a current method which is based on measurement of dimensions and orientation of lot of fibre intersections in analyzed plane.
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spelling doaj.art-6ea801517a6141d99029613ee88c20412022-12-21T17:57:29ZengUniversity of Chemistry and Technology, PragueCeramics-Silikáty0862-54681804-58472017-03-0161214114610.13168/cs.2017.000910.13168/cs.2017.0009.20170502095129ESTIMATION AND UTILIZATION OF STRUCTURE ANISOTROPY IN FORMING PIECESM. Martinkovic0 Slovak University of Technology in Bratislava Faculty of Materials Science and Technology in Trnava, Paulinska 16, 917 24 Trnava, Slovak Republic In most of cases, technological processing leads to microstructure anisotropy of material. Results obtained from the analysis of anisotropy can be used for evaluation of material properties and parameters of technology processes. Stereological metallography was used for describing of structure anisotropy. In case of plastically deformed material, degree of orientation of grain boundaries was determined. Grain boundaries are decomposed into isotropic, planar and linear oriented components - specific surface area of grain boundaries and these parameters were measured using oriented test lines stereology method. These results were used for estimation of local plastic deformation using conversion model of orientation grain boundaries to deformation of grains. Our proposed conversion method enables estimation of local plastic deformation in arbitrary place of body with arbitrary state of initial deformation. In case of short fibre reinforced thermoplastics oriented test plane stereology method was used for estimation of experimental orientation of fibres. Degree of orientation was estimated from the number of intersections of fibres with test planes and from these results components of an orientation tensor are estimated. This method is very simple in comparison with a current method which is based on measurement of dimensions and orientation of lot of fibre intersections in analyzed plane. http://www.ceramics-silikaty.cz/index.php?page=cs_detail_doi&id=878 Stereology Grain boundary Fibres Orientation Deformation
spellingShingle M. Martinkovic
ESTIMATION AND UTILIZATION OF STRUCTURE ANISOTROPY IN FORMING PIECES
Ceramics-Silikáty
Stereology
Grain boundary
Fibres
Orientation
Deformation
title ESTIMATION AND UTILIZATION OF STRUCTURE ANISOTROPY IN FORMING PIECES
title_full ESTIMATION AND UTILIZATION OF STRUCTURE ANISOTROPY IN FORMING PIECES
title_fullStr ESTIMATION AND UTILIZATION OF STRUCTURE ANISOTROPY IN FORMING PIECES
title_full_unstemmed ESTIMATION AND UTILIZATION OF STRUCTURE ANISOTROPY IN FORMING PIECES
title_short ESTIMATION AND UTILIZATION OF STRUCTURE ANISOTROPY IN FORMING PIECES
title_sort estimation and utilization of structure anisotropy in forming pieces
topic Stereology
Grain boundary
Fibres
Orientation
Deformation
url http://www.ceramics-silikaty.cz/index.php?page=cs_detail_doi&id=878
work_keys_str_mv AT mmartinkovic estimationandutilizationofstructureanisotropyinformingpieces