The Effect of Al-Mg-Si Wire Rod Heat Treatment on Its Electrical Conductivity and Strength

Abstract

The raw material for the production of Al-Mg-Si wires is wire rods, created in the Continuus Properzi line in temper T1 (cooled after forming at an elevated temperature and after natural aging). The general technologies for shaping the mechanical and electrical properties of Al-Mg-Si wire rods include two kinds: high- and low-temperature heat treatments. High-temperature heat treatment includes a homogenization process and a supersaturation process. Low-temperature heat treatment takes place after supersaturation and includes natural or artificial aging. This study shows how the amount of Mg and Si influences the mechanical and electrical properties of EN-AW 6101 wire rods after different kinds of heat treatments. As the general aim of this study was to determine the effect of the material’s temper on its mechanical and electrical properties, the research considered the initial parameters of the starting materials being examined. These parameters can be modified by selecting the chemical composition of the Al-Mg-Si alloy and the value of precipitation hardening obtained with artificial.

Review on recent progress in Al–Mg–Si 6xxx conductor alloys

“…Smyrak et al [ 61 ] also studied two alloys with different levels of Mg and Si while having the same Mg/Si ratio (~ 1): Al-0.72 Mg-0.71Si (HA) and Al-0.56 Mg-0.56Si (LA). The alloys were subjected to a solution treatment for 12 h at 550 °C, followed by natural aging for 24 h and then artificial aging at different temperatures (from 100 to 240 °C) and various time intervals (0-24 h); the associated results are displayed in Fig.…”

“…However, the HA alloy exhibited a higher strength at the high resistivity end relative to the LA alloy, presumably owing to a larger density number of precipitates in the HA alloy. It was reported that the optimal strength and EC (200 MPa-57.5% IACS) were acquired at 150 °C within 4-10 h for both alloys, which are favorable for the subsequent wire drawing to produce wires with high strength and high EC [ 61 ]. Reprinted with permission from [ 61 ].…”

Conductive Al Alloys: The Contradiction between Strength and Electrical Conductivity

“…a) ACSR and b) AAACs. [ 7 ] This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license ( http://creativecommons.org/licenses/by/4.0/).…”

Effect of Various Forms of Aluminum 6082 on the Mechanical Properties, Microstructure and Surface Modification of the Profile after Extrusion Process

“…Extrusion of fine fractions, such as metal chip, dusts, powders, tapes, etc., allows an effective plastic consolidation and the obtaining of a coherent material which has good utility properties [9][10][11][12][13][14][15]. Consolidation of the 6082 alloy chips by pressing and extrusion makes it possible to obtain briquettes with better fatigue properties compared to the solid material [16][17][18]. One of the materials most often used in the industry is aluminum and its alloys, in particular, alloy 6082.…”