Enhanced strength and electrical conductivity of ultrafine-grained Al-Mg-Si alloy processed by hydrostatic extrusion

Majchrowicz, Kamil; Pakieła, Zbigniew; Chromiński, Witold; Kulczyk, Mariusz

doi:10.1016/j.matchar.2017.11.023

Cited by 47 publications

(21 citation statements)

References 37 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…At the same time, it should be noted that there was no evidence of grain boundary precipitates (GDP) formed in this process. GDPs are generally undesirable since they are regarded as a principal cause of intergranular corrosion [ 26 , 27 ].…”

Section: Resultsmentioning

confidence: 99%

Impact of the Direct Ageing Procedure on the Age Hardening Response of Al-Mg-Si 6101 Alloy

et al. 2018

View full text Add to dashboard Cite

Al-Mg-Si alloys are used not only as construction material, but also as a material for electrical conductors. For this application, it is crucial for the alloy to achieve a balance between strength and electrical properties. This is achieved in practice by a combination of strain and precipitation hardening. The current paper focuses on a heat treatment procedure in which the EN AW 6101 alloy is cooled by a flowing air stream from the solutionizing temperature down to the artificial ageing temperature. The proposed procedure, unlike the common heat treatment leading to the T6 temper, allowed for the precipitation of the coarser β” phase with the presence of relatively wide precipitate-free zones. The age hardening response was investigated by Brinell hardness measurements, eddy current testing and microstructural observations using transmission electron microscopy (TEM). The applied heat treatment resulted in slightly lower strength (compared to the T6 temper), but improved electrical performance of the alloy.

show abstract

Section: Resultsmentioning

confidence: 99%

Impact of the Direct Ageing Procedure on the Age Hardening Response of Al-Mg-Si 6101 Alloy

et al. 2018

View full text Add to dashboard Cite

show abstract

“…Majchrowicz et al [ 33 ] studied hydrostatic extrusion (HE) combined with artificial aging, which could be applicable for the fabrication of electrical wires via long billets. It improved the strength owing to grain boundaries and precipitate strengthening with a relatively high EC for the AA6101 alloy.…”

Section: Severe Plastic Deformationmentioning

confidence: 99%

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

Khangholi

Javidani

Maltais³

et al. 2022

Journal of Materials Research

View full text Add to dashboard Cite

show abstract

“…SPD has a great influence on the precipitation behavior of age-hardenable aluminum alloys during the aging process [ 28 , 33 , 34 , 35 , 36 , 37 , 38 , 39 ]. Most of the existing studies mainly focus on precipitation behavior in UFG alloys produced by SPD with a lower strain rate (<10 S −1 ), including characterization of element segregation [ 24 , 27 , 40 ], precipitation at the grain boundary [ 26 , 27 , 28 , 41 ], assessment of the precipitate size [ 4 , 41 ], and analysis of the precipitation kinetics [ 34 , 38 , 42 ] or the precipitation sequence [ 28 , 42 , 43 ].…”

Section: Introductionmentioning

confidence: 99%

Precipitation Behavior during Aging Operations in an Ultrafine-Grained Al–Cu–Mg Alloy Produced by High-Strain-Rate Processing

Zhang

Luo

2022

Materials

View full text Add to dashboard Cite

An ultrafine-grained (UFG) Al–Cu–Mg alloy (AA2024) was produced by surface mechanical grinding treatment (SMGT) with a high strain rate, and the precipitation behavior inside the grain and at the grain boundary was investigated. During SMGT, element segregation at the boundary was rarely observed, since the solute atoms were impeded by dislocations produced during SMGT. During early aging, the atomic fraction of Cu at the grain boundary with SMGT alloys was approximately 2.4-fold larger than that without SMGT alloys, the diffusion rate of Cu atoms from the grain toward the grain boundaries was accelerated with SMGT alloys, because a higher local elastic stress and diffusion path were provided by high-density dislocations. The combined action, in terms of the composition of the alloy, the atomic radius, the diffusion path, and the diffusion driving force provided by high-density dislocations with SMGT alloys, led to a Cu/Mg atomic ratio of approximately 6.8 at the grain boundary. The average size of the precipitates inside the grain was approximately 2- and 10-fold larger than that formed after later aging with and without SMGT alloys, due to more nucleation sites at dislocation located inside the grain with SMGT alloys having attracted and captured numerous solute atoms during the aging process.

show abstract

Enhanced strength and electrical conductivity of ultrafine-grained Al-Mg-Si alloy processed by hydrostatic extrusion

Cited by 47 publications

References 37 publications

Impact of the Direct Ageing Procedure on the Age Hardening Response of Al-Mg-Si 6101 Alloy

Impact of the Direct Ageing Procedure on the Age Hardening Response of Al-Mg-Si 6101 Alloy

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

Precipitation Behavior during Aging Operations in an Ultrafine-Grained Al–Cu–Mg Alloy Produced by High-Strain-Rate Processing

Contact Info

Product

Resources

About