Studies on High-Performance Aluminium Alloys

A special issue of Metals (ISSN 2075-4701). This special issue belongs to the section "Metal Casting, Forming and Heat Treatment".

Deadline for manuscript submissions: 15 December 2026 | Viewed by 194

Editor


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Guest Editor
Faculty of Mathematics and Physics, Charles University, Ke Karlovu 5, 121 16 Prague, Czech Republic
Interests: aluminium alloys; aluminium–steel joining; microstructure; phase transformations; electron microscopy

Special Issue Information

Dear Colleagues,

High-performance aluminium alloys play a crucial role in modern engineering applications, particularly in the aerospace, automotive, and energy sectors, where the demand for lightweight materials with superior mechanical properties continues to grow. As performance requirements become increasingly stringent, a deeper understanding of alloy design, microstructural evolution, and processing–property relationships is essential to support ongoing technological advancements. The development of next-generation aluminium alloys relies on the optimisation of chemical composition, innovative processing routes, and precise control of the microstructure to achieve enhanced strength, ductility, fatigue resistance, and environmental stability.

The aim of this Special Issue is to provide the readership of Metals with the most up-to-date research on high-performance aluminium alloys. Contributions focusing on alloy development, microstructure–property relationships, advanced processing techniques, mechanical and functional properties, corrosion and surface engineering, as well as sustainability aspects, are particularly welcome. Both original research articles and review papers are encouraged.

Dr. Michaela Šlapáková
Guest Editor

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Keywords

  • aluminium alloys
  • microstructure
  • mechanical properties
  • processing
  • sustainability

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Published Papers (1 paper)

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Research

33 pages, 43250 KB  
Article
Influence of Zn and Cr Additions on the Microstructure and Mechanical Properties of Al–Mg–Si–Zr–Cu Multicomponent HPDC Alloys
by Ester Villanueva Viteri, Iban Vicario Gómez, Ignacio Crespo Camino, Iñaki Hurtado Hurtado and Joseba Albizuri Irigoyen
Metals 2026, 16(8), 850; https://doi.org/10.3390/met16080850 - 4 Aug 2026
Viewed by 45
Abstract
This study develops novel multicomponent Al–Mg–Si–Zr–Cu-based alloys for high-pressure die casting (HPDC) with improved mechanical properties and thermal stability. Four compositions were designed through Zn and Cr additions, supported by thermodynamic modelling. XRD and SEM/EDS analysed phase formation and microstructure, while density, electrical [...] Read more.
This study develops novel multicomponent Al–Mg–Si–Zr–Cu-based alloys for high-pressure die casting (HPDC) with improved mechanical properties and thermal stability. Four compositions were designed through Zn and Cr additions, supported by thermodynamic modelling. XRD and SEM/EDS analysed phase formation and microstructure, while density, electrical conductivity, hardness, and mechanical behaviour under tensile and compressive loading at room temperature and 200 °C were evaluated. Hardness increased from 166 to 214 HV3 with Zn and Cr due to the formation of complex intermetallic phases. The Al–Mg–Si–Zr–Cu alloy showed the best balance of strength and ductility under tensile loading, whereas Zn and Cr additions reduced tensile performance. In compression, Zn significantly improved strength, reaching the ultimate compressive strength of 697 MPa. Compared with the reference AlSi9Cu3 alloy, the new alloys achieved up to 30% higher yield strength, 13% higher ultimate tensile strength, and improved thermal stability. Among the studied compositions, Al72Mg10Si5Zr3Cu10 showed the best overall performance, while Al67Mg10Si5Zr3Cu10Zn10 was optimal for compression-dominated applications. Full article
(This article belongs to the Special Issue Studies on High-Performance Aluminium Alloys)
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