Novel Insights into Welding and Joining Technologies of Metallic Materials

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

Deadline for manuscript submissions: 30 November 2025 | Viewed by 110

Special Issue Editors


E-Mail Website
Guest Editor
State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology, Harbin 150001, China
Interests: welding and joining of materials; metal materials; surface modification of materials

E-Mail Website
Guest Editor
State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology, Harbin 150001, China
Interests: welding and joining of materials; composite materials

Special Issue Information

Dear Colleagues,

Welding, a crucial process in material engineering, has been widely applied across diverse industrial sectors, including aerospace, energy, and transportation. With the development of new materials and technologies, such as electronics, computers, and robotics, welding science has achieved remarkable progress. However, new materials and components pose higher demands on welding processes and materials, spurring innovation in traditional techniques for new materials, along with the development of new welding processes and connection technologies.

In this Special Issue, we welcome a variety of research works on innovative welding materials, novel welding processes, additive manufacturing, and in-depth exploration of the microstructure, performance, and interface behavior of welded joints to enhance the quality and reliability of welded structures.

Dr. Haifeng Yang
Dr. Meirong Wang
Guest Editors

Manuscript Submission Information

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Keywords

  • welding technology
  • welded joints
  • new materials
  • connection

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Published Papers (1 paper)

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Research

18 pages, 8946 KB  
Article
Dissimilar Resistance Spot Weld of Ni-Coated Aluminum to Ni-Coated Magnesium Using Cold Spray Coating Technology
by Mazin Oheil, Dulal Saha, Hamid Jahed and Adrian Gerlich
Metals 2025, 15(9), 940; https://doi.org/10.3390/met15090940 - 24 Aug 2025
Abstract
Direct fusion welding of aluminum (Al) to magnesium (Mg) results in the formation of brittle intermetallic compounds (IMCs) that significantly restrict the application of these joints in structural applications. In this study, cold spray, a promising solid-state coating deposition technology, was employed to [...] Read more.
Direct fusion welding of aluminum (Al) to magnesium (Mg) results in the formation of brittle intermetallic compounds (IMCs) that significantly restrict the application of these joints in structural applications. In this study, cold spray, a promising solid-state coating deposition technology, was employed to introduce a nickel (Ni) interlayer to facilitate joining of Al to Mg sheets by means of resistance spot welding (RSW). The ability of cold spraying to deposit metallic powder on the substrate without melting proves beneficial in mitigating the formation of the Al-Mg IMCs. The Ni-coated coupons were subsequently welded via resistance spot welding at optimized parameters: 27 kA for 15 cycles in two pulses with a 5-cycle inter-pulse delay. Scanning electron microscopy confirmed metallurgical bonding between the Al, Mg, and Ni coatings in the fusion zone. It is shown that the bonding between the three elements inhibits the formation of deleterious IMCs. Tensile shear testing showed joint strength exceeding 4.2 kN, highlighting the potential of the proposed cold spray RSW approach for dissimilar joining in structural applications. Full article
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