RESEARCH ON THE INTERNAL STRESSES IN ROUND WIRES OBTAINED FROM ALMGSI ALLOY

1 STRZĘPEK Paweł
Co-authors:
1 MAMALA Andrzej 1 SMYRAK Beata 1 ŚCIĘŻOR Wojciech 1 ZASADZIŃSKA Małgorzata
Institution:
1 AGH University of Science and Technology, Faculty of Non-Ferrous Metals, Department of Metal Working and Physical Metallurgy of Non-Ferrous Metals, Cracow, Poland, EU email: strzepek@agh.edu.pl
Conference:
27th International Conference on Metallurgy and Materials, Hotel Voronez I, Brno, Czech Republic, EU, May 23rd - 25th 2018
Proceedings:
Proceedings 27th International Conference on Metallurgy and Materials
Pages:
1339-1344
ISBN:
978-80-87294-84-0
ISSN:
2694-9296
Published:
24th October 2018
Proceedings of the conference were published in Web of Science and Scopus.
Metrics:
48 views / 12 downloads
Abstract

The research problem focuses on the wires made of aluminum alloys acquired in the wire drawing process of the wire rod obtained using the Continuus Properzi method. The nature of the drawing process generates a heterogeneity of strain on the wire cross-section, which results in the formation of internal stresses. The result of drawing round wires is a parabolically shaped internal stress distribution: tensile stresses around the surface and compressive stresses around the axis of the wire.The aim of the work was to empirically determine the distribution of internal stresses in the wires made of aluminum alloy EN AW 6101 (AlMgSi) obtained in various conditions. The internal stresses were determined through the surface treatment method. In order to achieve that, after proper preparation of the wire samples, their surface was pickled using a 50 % NaOH solution. After stabilization of the thermal state, changes in length were investigated. Parallel to the internal stress tests, the macroscopic properties were characterized in a uniaxial static tensile test.

Keywords: Internal stresses, residual stresses, wires, AlMgSi alloy, EN AW 6101

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