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Foundry Aluminum Alloys: Casting Metallurgy and Processes

A special issue of Materials (ISSN 1996-1944). This special issue belongs to the section "Metals and Alloys".

Deadline for manuscript submissions: closed (10 July 2022) | Viewed by 2242

Special Issue Editors


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Guest Editor
Department of Engineering (DE), University of Ferrara, Via Saragat 1, 44122 Ferrara, Italy
Interests: microstructural characterization; mechanical properties; heat treatments; aluminum alloys; surface engineering
Special Issues, Collections and Topics in MDPI journals

E-Mail Website
Guest Editor
Department of Engineering, University of Ferrara, Via Saragat 1/E, 44122 Ferrara, Italy
Interests: metallography; surface modification; heat treatments; tribology
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Al foundry alloys are broadly used in the automotive field and, to date, casting technologies are still the most popular means for forming aluminum. In this respect, the proper selection of the casting process parameters is crucial since it affects the microstructural properties and, in turn, the castings' performance in-service conditions. Nonetheless, alloy composition together with melt and heat treatments has a strong influence on the mechanical strength, dimensional stability and overall durability of components.

Even though the casting processes of Al alloys are well-established and the current production of primary aluminum amounts to 65 million tons worldwide, achieving optimal mechanical and metallurgical properties during casting is still a challenging task.

This Special Issue is devoted to experimental and numerical research concerning the foundry processes and sub-processes of foundry aluminum alloys, along with the evaluation of the microstructural and mechanical properties of castings.

Contributions from industry and/or academia dealing with cutting-edge development in foundry processes and technologies, both as original research papers and review articles, will be highly appreciated.

Topics of interest include:

  • Casting process improvements devoted to both technological innovation and sustainable manufacturing;
  • Case studies on or failure analysis of cast aluminum alloys;
  • Investigations on the melt treatments, solidification processes and heat treatments of foundry aluminum alloys and their effect on microstructure and mechanical behavior;
  • Development of new alloys: microstructural, chemical and physical properties evaluation and/or numerical simulation.

Dr. Mattia Merlin
Dr. Annalisa Fortini
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Materials is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • aluminum alloys
  • casting processes
  • foundry technologies and manufacturing
  • solidification
  • microstructure
  • mechanical properties

Published Papers (1 paper)

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Research

15 pages, 2819 KiB  
Article
Aluminum Melt Degassing Process Evaluation Depending on the Design and the Degree of the FDU Unit Graphite Rotor Wear
by Martin Podaril, Tomáš Prášil, Jan Majernik, Rudolf Kampf, Ladislav Socha, Karel Gryc and Martin Gráf
Materials 2022, 15(14), 4924; https://0-doi-org.brum.beds.ac.uk/10.3390/ma15144924 - 15 Jul 2022
Cited by 2 | Viewed by 1535
Abstract
One of the most important indicators of casting quality is porosity. The formation of pores is largely conditioned by the presence of hydrogen in the batch and subsequently in the melt. The gasification of the melt is the primary factor increasing the porosity [...] Read more.
One of the most important indicators of casting quality is porosity. The formation of pores is largely conditioned by the presence of hydrogen in the batch and subsequently in the melt. The gasification of the melt is the primary factor increasing the porosity of casts. This paper addresses the issue of reducing the melt gasification by using FDU (Foundry Degassing Unit) unit. The gas content in the melt is evaluated by determining the Dichte Index depending on the geometry and the degree of the FDU unit rotor wear. For experiments performed under the operating conditions, three types of graphite rotors with different geometries are used. The extent of melt gasification and the Dichte Index are monitored during the rotor wear, at a rate of 0%, 25%, 50%, 75% and 100% rotor wear. Secondly, the chemical composition of the melt is monitored depending on the design and wear of the rotor. It is proven that the design and the degree of rotor wear do not have significant effect on the chemical composition of the melt and all evaluated samples fell within the prescribed quality in accordance with EN 1706. With regard to the overall comparison of the geometry and wear of individual rotor types, it has been proven that, in terms of efficiency, the individual rotors are mutually equivalent and meet the requirements for melt degassing throughout the service life. Full article
(This article belongs to the Special Issue Foundry Aluminum Alloys: Casting Metallurgy and Processes)
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