Heat Treatment Conditions for High-Performance High-Pressure Die-Cast Al–si–cu–mg Alloy

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Bibliographic Details
Title: Heat Treatment Conditions for High-Performance High-Pressure Die-Cast Al–si–cu–mg Alloy
Authors: Karakulak,E., Demirtaş,H., Babu,N.H.
Publisher Information: John Wiley and Sons Inc
Publication Year: 2024
Subject Terms: silicon spheroidization, mechanical properties, high-pressure die casting, heat treatments, blistering, Al–Si–Cu–Mg alloys
Description: 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. © 2023 The Authors. Advanced Engineering Materials published by Wiley-VCH GmbH. ; The Future Liquid Metal Engineering Research Hub, (EP/N007638/1); Engineering and Physical Sciences Research Council, EPSRC; Türkiye Bilimsel ve Teknolojik Araştırma Kurumu, TÜBİTAK, (2219)
Document Type: article in journal/newspaper
Language: English
Relation: Advanced Engineering Materials; Makale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı; https://hdl.handle.net/20.500.11851/11674; https://doi.org/10.1002/adem.202301196; 26; Q2
DOI: 10.1002/adem.202301196
Availability: https://hdl.handle.net/20.500.11851/11674
https://doi.org/10.1002/adem.202301196
Rights: open
Accession Number: edsbas.75DC7C6E
Database: BASE
Description
Abstract: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. © 2023 The Authors. Advanced Engineering Materials published by Wiley-VCH GmbH. ; The Future Liquid Metal Engineering Research Hub, (EP/N007638/1); Engineering and Physical Sciences Research Council, EPSRC; Türkiye Bilimsel ve Teknolojik Araştırma Kurumu, TÜBİTAK, (2219)
DOI:10.1002/adem.202301196