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New Perspectives in Welding and Joining Processes of Metallic Materials

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

Deadline for manuscript submissions: 20 October 2024 | Viewed by 902

Special Issue Editors


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Guest Editor
Department of Civil Engineering and Architecture, University of Catania, 96100 Catania, Italy
Interests: mechanical behavior and microstructural characterization of metallic alloys; methods for optimal material selection; metallurgy of mobile heat sources-based processes (laser welding, powder bed fusion additive manufacturing); solid-state joining (diffusion bonding); life cycle design; design for the environment
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Guest Editor
Department of Engineering, University of Messina, Contrada Di Dio, 98166 Messina, Italy
Interests: biomaterials; plastic and metals; physical and mechanical characterization; laser welding
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

In all fields of main engineering applications (process plant, aerospace, automotive industry, ship building, electronic equipment, construction and infrastructure), welding and joining techniques for metallic components play a key role in ensuring the required performance, quality and safety in service. They have a direct influence on the primary properties of metallic equipment and structures, which, more and more frequently, should satisfy an increasingly broad set of requirements and multiple functions under operating conditions, including not only mechanical properties (strength, stiffness, damage resistance, fracture toughness, damping, etc.) but also properties of other types, depending on the specific application (electrical and thermal properties, energy storage, self-healing capability, etc.).

The continuous development of new metal alloys promotes research on advanced welding and joining technologies. Given the vast and diverse range of requirements and functions to be satisfied, investigations into the compatibility and weldability of materials, and in the metallurgical effects of joining processes parameters on their final microstructure and properties, are an essential phase in selecting and setting the most efficient joining processes.

In this regard, research to thoroughly understand the process mechanisms and related metallurgical phenomena on a scientific basis is required to be continuously and intensively carried out, and further work is still required in this field to interpret the correlation between process parameters, material microstructure, and joint efficiency. In addition, the current strong push towards environmental protection policies also raises the question of how welding and joining technologies can fit into the more general framework of the environmental sustainability of manufacturing processes.

This Special Issue invites researchers from academia, research institutions, and industry to contribute perspectives, research articles, and reviews with the aim of providing an overview on recent advances in welding and joining processes of metallic materials and outlining the current perspectives in the field. Topics of interest include, but are not limited to, the following:

  • Modelling and simulation of welding and joining processes;
  • Metallurgical phenomena in joining processes;
  • Heat source–material interaction mechanism;
  • Weldability and metallurgical compatibility of materials;
  • Microstructure, properties and behaviour of metal alloys subjected to joining and welding processes;
  • Welding and joining parameters and optimization;
  • Post-weld treatments;
  • Developments of advanced welding and joining processes;
  • Environmental impact and sustainability of welding and joining processes.

Prof. Dr. Fabio Giudice
Dr. Cristina Scolaro
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

  • welding techniques
  • fusion welding
  • solid-state welding
  • process simulation and setting
  • weldability of metals
  • defects
  • residual stress and distortion
  • non-destructive testing
  • metallurgical characterization
  • mechanical properties
  • welding and joining sustainability

Published Papers (1 paper)

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Research

16 pages, 10621 KiB  
Article
Modeling and Experimental Investigation of the Impact of the Hemispherical Tool on Heat Generation and Tensile Properties of Dissimilar Friction Stir Welded AA5083 and AA7075 Al Alloys
by Ahmed R. S. Essa, Ramy I. A. Eldersy, Mohamed M. Z. Ahmed, Ali Abd El-Aty, Ali Alamry, Bandar Alzahrani, Ahmed E. El-Nikhaily and Mohamed I. A. Habba
Materials 2024, 17(2), 433; https://doi.org/10.3390/ma17020433 - 16 Jan 2024
Viewed by 630
Abstract
This study investigated the effect of a hemispherical friction stir welding (FSW) tool on the heat generation and mechanical properties of dissimilar butt welded AA5083 and AA7075 alloys. FSW was performed on the dissimilar aluminum alloys AA5083-H111 and AA7075-T6 using welding speeds of [...] Read more.
This study investigated the effect of a hemispherical friction stir welding (FSW) tool on the heat generation and mechanical properties of dissimilar butt welded AA5083 and AA7075 alloys. FSW was performed on the dissimilar aluminum alloys AA5083-H111 and AA7075-T6 using welding speeds of 25, 50, and 75 mm/min. The tool rotation rate was kept constant at 500 rpm. An analytical model was developed to calculate heat generation and temperature distribution during the FSW process utilizing a hemispherical tool. The experimental results were compared to the calculated data. The latter confirms the accuracy of the analytical model, demonstrating a high degree of agreement. Sound FSW dissimilar joints were achieved at welding speeds of 50 and 25 mm/min. Meanwhile, joints created at a welding speed of 75 mm/min exhibited a tunnel-like defect, which can be attributed to the minimal heat generated at this particular welding speed. At a lower welding speed of 25 mm/min, a higher tensile strength of the dissimilar FSWed joints AA5083 and AA7075 was achieved with a joint efficiency of over 97%. Full article
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