Optimization of mechanical properties and electrical conductivity in Al–Mg–Si 6201 alloys with different Mg/Si ratios

Khangholi, Siamak Nikzad; Javidani, Mousa; Maltais, Alexandre; Chen, X.-Grant

doi:10.1557/jmr.2020.249

Cited by 29 publications

(23 citation statements)

References 30 publications

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“…The multiplication of dislocations during drawing only slightly deteriorates EC [ 79 ]. Moreover, the quantitative equation shows that a large number of dislocations have a negligible detrimental impact on EC [ 18,26 ].…”

Section: Conventional Thermomechanical Treatmentsmentioning

confidence: 92%

“…However, longer aging times were required to fulfill the minimum EC, giving rise to deterioration of precipitation strengthening and lower strength. Accordingly, the sample with Mg/Si~ 0.86 showed a limited window of hardness and EC [ 26,27 ].…”

Section: Principal Alloying Elements (Mg and Si)mentioning

confidence: 98%

“…As a consequence, precipitate strengthening was strongly governed by Si solutes in Al-Mg-Si conductors [ 58 ]. Although cold drawing might disrupt the precipitation sequence [ 45,46,47 ], excessive Si still exhibited a higher strength in as-drawn Al-Mg-Si conductor alloys [ 24,26 ].…”

Section: Principal Alloying Elements (Mg and Si)mentioning

confidence: 99%

“…In our recent work [ 26 ], the optimization of strength and EC was studied at different Mg/Si ratios for drawn wire samples (50% reduction). The sample with Mg/Si ~ 1 exhibited the highest strength among all samples with the minimum required EC (52.5% IACS).…”

Section: Principal Alloying Elements (Mg and Si)mentioning

confidence: 99%

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

Khangholi

Javidani

Maltais³

et al. 2022

Journal of Materials Research

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Section: Conventional Thermomechanical Treatmentsmentioning

confidence: 92%

Section: Principal Alloying Elements (Mg and Si)mentioning

confidence: 98%

Section: Principal Alloying Elements (Mg and Si)mentioning

confidence: 99%

Section: Principal Alloying Elements (Mg and Si)mentioning

confidence: 99%

See 2 more Smart Citations

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

Khangholi

Javidani

Maltais³

et al. 2022

Journal of Materials Research

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“…Modern automotive and aviation technology imposes more and more high requirements to the fine wires in strength and thermal stability of the microstructure, which cannot be met using commercial aluminum alloys anymore. In this connection, aluminum alloys modifications of Al-Mg-Si system alloys [11,16,[28][29][30][31][32][33][34][35][36] (commercial alloys of 6XXX series [28,32,33,36,[38][39][40], Al-Mg-Si-Zr alloys [30], Al-Mg-Si-(Ni,Fe) + (Sc,Zr) [37], Al-Mg-Si-Cu [41], et al), conductor alloys Al-Fe [8,[42][43][44] and novel aluminum alloys multidoped with various rare earth elements (REEs) and transition metals (TMs) -zirconium, scandium, hafnium, yttrium, etc. are being developed extensively [45][46][47][48][49][50][51][52][53][54][55][56].…”

Section: Introductionmentioning

confidence: 99%

Effect of Er, Si, Hf, Nb Additives on the Thermal Stability of Microstructure, Electrical Resistivity and Microhardness of Fine-Grained Aluminum Alloys Al-0.25%Zr

Нохрин¹,

Nagicheva²,

Чувильдеев³

et al. 2022

Preprint

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The conductor aluminum alloys Al-0.25wt.%Zr doped additionally with Х = Er, Si, Hf, and Nb were the objects of investigations. The fine-grained microstructure in the alloys was formed by Equal Channel Angular Pressing and Rotary Swaging. The thermal stability of the microstructure, specific electrical resistivity, and microhardness of the novel conductor aluminum alloys was investigated. The mechanisms of nucleation of the Al3(Zr,X) secondary particles during annealing the fine-grained aluminum alloys were determined using Jones-Mehl-Avrami-Kolmogorov equation. Using Zener equation, the dependencies of the mean secondary particle sizes on the annealing time were obtained on the base of analysis of the data on the grain growth in the aluminum alloys. The secondary particle nucleation during long-time low-temperature annealing (300 оC, 1000 hrs) was shown to go preferentially at the cores of the lattice dislocations. The Al-0.25%Zr-0.25%Er-0.20%Hf-0.15%Si alloy subjected to long-time annealing at 300 оC has the optimal combination of the microhardness and electrical conductivity (59.8%IACS, Hv = 480 ± 15 MPa).

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Enhanced Mechanical Strength and Electrical Conductivity of Al–Ni‐Based Conductor Cast Alloys Containing Mg and Si

Algendy,

Javidani,

Khangholi

et al. 2023

Adv Eng Mater

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The electrical conductivity (EC), mechanical strength, hot tearing susceptibility (HTS), and related microstructure of Al–xNi–0.55Mg–0.55Si conductor alloys (x = 1–4 wt%) are investigated. Adding Mg and Si into Al–Ni‐based alloys, numerous β″/β′ precipitate after T5 and T6 treatments, thus significantly improving the EC and mechanical strength. The HTS of the alloys reduces significantly as the Ni content increases, mainly because of an increase in the eutectic Al–Al3Ni and a reduction in the grain size. Under T5 condition, the tensile strengths increase gradually with the Ni content and reach a medium strength level, with yield strength (YS) of 158–205 MPa and EC of 47.1–50.7% IACS. After applying T6, all alloys achieve a high strength, with YS of 246–287 MPa and EC of 47.7–51.1% IACS. However, the strength decreases with increasing Ni content. In general, the Al3Ni–0.55Mg–0.55Si alloy presents a better trade‐off among HTS, YS, and EC among the four alloys investigated. Due to its excellent properties (EC of 49.4% IACS and YS of 178 MPa in T5, and EC of 49.7% IACS and YS of 250 MPa in T6), the Al3Ni–0.55Mg–0.55Si alloy is a promising material for the fabrication of Al conductor cast alloys.

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Optimization of mechanical properties and electrical conductivity in Al–Mg–Si 6201 alloys with different Mg/Si ratios

Abstract: Abstract

Cited by 29 publications

References 30 publications

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

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

Effect of Er, Si, Hf, Nb Additives on the Thermal Stability of Microstructure, Electrical Resistivity and Microhardness of Fine-Grained Aluminum Alloys Al-0.25%Zr

Enhanced Mechanical Strength and Electrical Conductivity of Al–Ni‐Based Conductor Cast Alloys Containing Mg and Si

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