The effect of quenching rates on microstructure and mechanical properties of an Al-Si-Cu-Mg alloy

Piao, Yi-Nan; Jia, Hai-Long; Zha, Min; Ma, Peijun; Gao, Dan; Yin, Chaoran; Yang, Zhi-Zheng; Wang, Huiyuan

doi:10.1016/j.matchar.2022.112609

Cited by 5 publications

(1 citation statement)

References 57 publications

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“…The main intermetallic phases in the current alloy that can be dissolved during solution heat treatment and then precipitate during aging are Al 2 Cu (θ) and Al 5 Cu 2 Mg 8 Si 6 (Q) phases. [ 35,36 ] Figure shows formation temperatures and fractions of the phases in the studied alloy as well as the fractions of Q and θ phases at different temperatures under equilibrium conditions calculated using Thermo‐Calc software. As expected with increased temperature, the amount of intermetallics decreases.…”

Section: Resultsmentioning

confidence: 99%

Heat Treatment Conditions for High‐Performance High‐Pressure Die‐Cast Al–Si–Cu–Mg Alloy

Demirtaş,

Karakulak,

Babu

2023

Adv Eng Mater

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Random porosity in high‐pressure die castings of aluminum alloys poses additional challenges in the form of blistering during follow‐on heat treatment process. To avoid blisters, the current industrial practice is to lower solution temperature, but this compromises the strength. Herein, kinetics of eutectic Si spheroidization and coarsening during various solution treatment conditions and maximizing the dissolution of much needed Al2Cu and Al5Cu2Mg8Si6 phases, followed by formation of their precipitates in the aging stage with higher particle number densities, are studied and then higher tensile strength of 435 MPa in most commonly used high‐pressure die‐cast Al–Si–Cu–Mg alloy without causing blisters is demonstrated.

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Section: Resultsmentioning

confidence: 99%