STUDY OF THE PRECIPITATION IN AGS 6101 ALUMINUM ALLOY WIRES AT ROOM TEMPERATURE AND THE EFFECT OF DEFORMATION

1 MESSAOUDI Salim
Co-authors:
1 ZIDANI Mosbah 1 HADID Mohamed Djamel 2 MATHON Marie Hélène 3 HELBERT Anne-Laure 3 BRISSET François 3 BAUDIN Thierry
Institutions:
1 Laboratory of Energy and materials, University of Biskra - B.P: 145 – Biskra – 07000 Algeria
2 Léon Brillouin Laboratory, CEA (DSM-DRECAM) - CNRS, CEA Saclay, 91191 Gif sur Yvette, France
3 ICMMO, SP2M, Univ Paris-Sud, Université Paris-Saclay, UMR CNRS 8182, 91405 Orsay Cedex, France
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:
304-309
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 / 13 downloads
Abstract

In this study, we will examine the phenomenon of precipitation that appears in the aluminum alloy AGS wires. Since the studied wires are drawn, we will try to see also the effect of the deformation on this phenomenon.The precipitation was believed to be the main cause of hardening in the AGS 6101 wire rod. The hardening appears in this wire, after a period of storage, and causes the elevation of its hardness from 7% to 18% and its maximum tensile load from 4% to more than 22% depending on storage times.Microstructural analysis of wire rod and drawn wires shows the existence of precipitates in the microstructures. Optical microscopy reveals the presence of two precipitates of different sizes and colors: whitish and dark gray. Under the scanning electron microscope, two types of precipitates appear: light gray and gray, ranging from 3 to 12 m.X-ray diffraction analysis did not reveal the presence of precipitates, observed by light microscopy and scanning electron microscopy. The EDS analysis allowed the measurement of the chemical composition of the light gray precipitates that were identified as the Mg2Si intermetallic compound.Note that the effect of deformation on precipitation in AGS 6101 alloy was not clearly found in this study. Because the wires used in this study were part of the same batch as the wire rod, in part. On the other part, the exploitation of background signal with XRD software does not seem very convincing.

Keywords: Aluminum alloy, AGS 6101 alloy, precipitation, wire drawn, intermetallic compound
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