Assessment with indentation techniques of the local mechanical behavior of joints in polymer parts

R Lach; P Hutař; P Veselý; E Nezbedová; Z Knésl; T Koch; C Bierögel; W Grellmann

Published : 2013-12-30

Vol. 58 No. 11-12 (2013)

Assessment with indentation techniques of the local mechanical behavior of joints in polymer parts

R Lach P Hutař P Veselý E Nezbedová Z Knésl T Koch C Bierögel W Grellmann

Abstract

The paper summarizes our investigations performed with micro- and nanoindentation techniques and results presented in literature, concerning local mechanical behavior of welded joints [polyamide 6, polypropylene, polyethylene (high density and crosslinked polyethylene), poly(vinyl chloride)] and weld lines (polypropylene, polycarbonate, polystyrene) of amorphous and semicrystalline polymers. For amorphous polymers, minimum of hardness and indentation modulus in the joint are found or no change in the properties were stated, whereas for semicrystalline polymers, hardness and indentation modulus mostly pass through a maximum in the weld line, the welded joint or the heat-affected zones.

Keywords

welded joints ; weld lines ; microindentation techniques ; nanoindentation techniques ; hardness ; indentation modulus złącze spawane ; linia spoiny ; technika mikroindentacji ; technika nanoindentacji ; twardość ; moduł sprężystości przy wciskaniu wgłębnika

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Lach, R., Hutař, P., Veselý, P., Nezbedová, E., Knésl, Z., Koch, T., … Grellmann, W. (2013). Assessment with indentation techniques of the local mechanical behavior of joints in polymer parts. Polimery, 58(11-12), 900–905. Retrieved from https://polimery.ichp.vot.pl/index.php/p/article/view/797

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R Lach ralf.lach@psm.uni-halle.de

Affiliation
Martin-Luther University Halle-Wittenberg, Centre of Engineering, 06099 Halle/Saale, Germany

P Hutař

Affiliation
Academy of Sciences of the Czech Republic, Institute of Physics of Materials, Ziskova 22, 616 62 Brno, Czech Republic

P Veselý

Affiliation
Martin-Luther University Halle-Wittenberg, Centre of Engineering, 06099 Halle/Saale, Germany

E Nezbedová

Affiliation
Polymer Institute Brno, Tkalcovska 36/2, 656 49 Brno, Czech Republic

Z Knésl

Affiliation
Academy of Sciences of the Czech Republic, Institute of Physics of Materials, Ziskova 22, 616 62 Brno, Czech Republic

T Koch

Affiliation
Vienna University of Technology, Institute of Materials Science and Technology, Favoritenstraße 9, 1040 Vienna, Austria

C Bierögel

Affiliation
Martin-Luther University Halle-Wittenberg, Centre of Engineering, 06099 Halle/Saale, Germany

W Grellmann

Affiliation
Martin-Luther University Halle-Wittenberg, Centre of Engineering, 06099 Halle/Saale, Germany