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Metals
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New Advances in Dissimilar Material Joining
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New Advances in Dissimilar Material Joining

A special issue of Metals (ISSN 2075-4701). This special issue belongs to the section "Welding and Joining".

Deadline for manuscript submissions: closed (31 May 2023) | Viewed by 3974

Special Issue Editors

Dr. Koen Faes

E-Mail Website
Guest Editor
Belgian Welding Institute, Zwijnaarde, Belgium
Interests: fusion and solid-state welding processes; real-time quality monitoring
Prof. Dr. Wim De Waele

E-Mail Website
Guest Editor
Faculty of Engineering and Architecture, Department of Electromechanical, Systems and Metal Engineering, Universiteit Gent, 9000 Ghent, Belgium
Interests: fatigue; fracture; metals; welds; experimental and numerical analysis

Special Issue Information

Dear Colleagues,

Global trends force the industry to manufacture lighter, safer, more environmentally friendly, more performant, and cheaper products. Combining conventional materials with others or even new materials offers designers solutions where a design consisting out of one material fails. A multi-material design exploits the potential of tailored properties for each part of the component or product.

The joining of different materials is recognized as a challenge for the development of new structural components within the production industry. Multi-material design is mainly hindered by challenges in the field of joining technology. The prerequisite for the production of such multi-material components is the availability of suitable joining technologies. 

This Special Issue will provide an overview of the recent advances in the welding and joining of dissimilar materials, in terms of processing, microstructure, and mechanical properties, to provide an up-to-date overview of the current state-of-the-art and the future directions of welding and joining dissimilar materials.

The focus of the Special Issue is on, but is not limited to, non-conventional joining processes for joining metals to other metals or to non-metallic materials, such as composites, ceramics, or more advanced materials (including hybrid metal-composite materials, metal foams, etc.).

Dr. Koen Faes
Prof. Dr. Wim De Waele
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. Metals is an international peer-reviewed open access monthly 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
  • joining
  • dissimilar materials
  • multi-material components
  • hybrid components

Published Papers (2 papers)

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Research

18 pages, 7827 KiB  
Article
Influence of the Duration and Temperature of the Al-Fin Process for the Cast Iron Insert on the Microstructure of the Bimetallic Joint Obtained in the Piston Casting Process
by Krzysztof Szwajka, Joanna Zielińska-Szwajka and Tomasz Trzepieciński
Metals 2023, 13(5), 897; https://doi.org/10.3390/met13050897 - 05 May 2023
Viewed by 1469
Abstract
The aim of this work was to determine the effect of the duration and temperature of the Al-Fin process for casting the bimetallic joint on the formation of the metallurgical bond between the AlSi9 aluminium alloy piston and the cast iron insert. Knowledge [...] Read more.
The aim of this work was to determine the effect of the duration and temperature of the Al-Fin process for casting the bimetallic joint on the formation of the metallurgical bond between the AlSi9 aluminium alloy piston and the cast iron insert. Knowledge about the formation of individual bonding layers has a direct impact on the bonding strength between the aluminium alloy and the EN-GJLA-XNiCuCr15-6-2 austenitic cast iron ring. In the performed tests, the Al-Fin casting process was carried out for different temperatures of the liquid AlSi9 alloy. The temperature of the AlSi9 aluminium alloy varied in the range 700–950 °C in steps of 50 °C. The duration of the Al-Fin process ranged from 1 to 10 min. An optical microscope and a scanning electron microscope were used to study the microstructure of the bimetallic joints. The analysis of the microstructure of the bimetallic bond showed that characteristic layers are formed between the aluminium alloy piston and the cast iron insert: a transition layer, in which iron and aluminium atoms from both joined materials are mixed, and a diffusion layer, in which aluminium and silicon atoms penetrate the surface layer of the joined metals. The thickness of the intermetallic diffusion layer formed between the aluminium alloy and the cast iron insert is thinner and does not depend on the heating time of the aluminium insert in the bath. However, there is a significant effect of both the annealing time and the temperature of the AlSi9 aluminium alloy on the thickness of the transition zone. Full article
(This article belongs to the Special Issue New Advances in Dissimilar Material Joining)
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19 pages, 5547 KiB  
Article
Friction Stir Lap Welding of Inconel 625 and a High Strength Steel
by Elisangela Pelizzari Bossle, Buchibabu Vicharapu, Guilherme Vieira Braga Lemos, Cleber Rodrigo de Lima Lessa, Luciano Bergmann, Jorge Fernandez dos Santos, Thomas Gabriel Rosauro Clarke and Amitava De
Metals 2023, 13(1), 146; https://doi.org/10.3390/met13010146 - 10 Jan 2023
Cited by 2 | Viewed by 1658
Abstract
The joining of dissimilar hard metals such as high-strength steel and nickel-based alloy is required for shipbuilding and offshore applications to enhance the strength, fracture toughness, and corrosion resistance of the exposed parts. However, the joining of these dissimilar alloys has remained a [...] Read more.
The joining of dissimilar hard metals such as high-strength steel and nickel-based alloy is required for shipbuilding and offshore applications to enhance the strength, fracture toughness, and corrosion resistance of the exposed parts. However, the joining of these dissimilar alloys has remained a major challenge due to the limited solubility of Fe and Ni in each other, which commonly results in the formation of brittle intermetallic compounds. We present here a novel investigation on the joining of overlapped nickel-based alloy 625 and marine-grade GL E36 steel plates by friction stir lap welding (FSLW). The interface microstructure and its influence on joint strength are rigorously tested. The main bonding mechanism is found to be the mechanical mixing of Fe and Ni along the interface. The interface thermal cycles are computed by a three-dimensional numerical heat transfer model and their effects on the microstructure are examined. Multiple micro tensile specimens are extracted from the stir zone to examine the through-thickness variation in the stir zone properties. The welded joint is characterized further by evaluating the interface microhardness distribution, lap-shear strength, and surface residual stresses. Full article
(This article belongs to the Special Issue New Advances in Dissimilar Material Joining)
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