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Advances in Welding Process and Materials (2nd Edition)
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Advances in Welding Process and Materials (2nd Edition)

A special issue of Materials (ISSN 1996-1944). This special issue belongs to the section "Manufacturing Processes and Systems".

Deadline for manuscript submissions: closed (20 March 2024) | Viewed by 2381

Special Issue Editors

Dr. Cosmin Codrean

E-Mail Website
Guest Editor
Mechanical Faculty, Politehnica University of Timşoara, Bd. MihaiViteazu Nr.1, 300222 Timişoara, Romania
Interests: processing and characterization of advanced materials; amorphous and nanocrystalline alloys; metals and alloys; welding and brazing of advanced materials
Special Issues, Collections and Topics in MDPI journals
Dr. Carmen Opriș

E-Mail Website
Guest Editor Assistant
Department of Materials and Manufacturing Engineering, Polytechnic University of Timisoara, 300222 Timişoara, Romania
Interests: advanced materials; material characterization; composite material; electron microscope; metal analysis alloys; biomedical alloys; materials engineering; materials testing; failure analysis
Dr. Anamaria Feier

E-Mail Website
Guest Editor Assistant
Materials and Manufacturing Engineering Department, Politehnica University Timișoara, Bd. Mihai Viteazu Nr. 1, 300222 Timișoara, Romania
Interests: joining, manufacturing engineering; advanced welding and joining technologies; welding and joining of similar and dissimilar metals, additive manufacturing, metal-polymer hybrid joints, friction riveting, stress concentrations, fatigue

Special Issue Information

Dear Colleagues,

Recent developments in the engineering industry require new and advanced materials with special properties. Welding and joining these new materials present a major challenge to engineers and technicians involved in product design and manufacturing. Therefore, new material research should be conducted hand in hand with work on weldability and joining capacity aspects, as well as the development of new welding techniques. At the same time, a better understanding of the relationship between the microstructure and mechanical properties of the brazed or welded joints will provide useful information for material development activities both in conventional and new material areas.

The aim of this Special Issue is to provide a platform for researchers, engineers, academicians, and industrial professionals from all over the world to present their research results and development activities in the field of the welding and joining of both advanced and conventional engineering materials. You can view the first volume here: https://www.mdpi.com/journal/materials/special_issues/BG1CJRFSY4

For this Special Issue, research areas may include (but are not limited to) the following:

  • New joining technologies
  • Quality of welded joints and welded structures
  • Modeling and simulation of welding processes
  • Specific problems in advanced materials joining
  • Mechanical and structural characterization of advanced materials and joints
  • Engineering applications of surface coatings
  • Damage to metal and non-metal structures

Dr. Cosmin Codrean
Guest Editor

Dr. Anamaria Feier
Dr. Carmen Opriș
Guest Editor Assistants

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

  • joining technologies
  • welding process
  • quality of welded joints
  • modelling and simulation
  • advanced materials
  • microstructure
  • mechanical properties
  • surface coatings

Related Special Issue

Published Papers (3 papers)

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Research

10 pages, 5749 KiB  
Communication
Effect of Welding Current on Corrosion Resistance of Heat-Affected Zones of HDR Duplex Stainless Steel
by Xin Liu, Yulong Hu and Nian Liu
Materials 2024, 17(9), 1986; https://doi.org/10.3390/ma17091986 - 25 Apr 2024
Viewed by 184
Abstract
This paper examines the corrosion behavior of the welding heat-affected zone (HAZ) of HDR (high chromium, duplex, corrosion-resistant) duplex stainless steel, which currently faces corrosion-related challenges in marine seawater systems. The corrosion behavior of the HAZ was studied using microstructure analysis, polarization curve [...] Read more.
This paper examines the corrosion behavior of the welding heat-affected zone (HAZ) of HDR (high chromium, duplex, corrosion-resistant) duplex stainless steel, which currently faces corrosion-related challenges in marine seawater systems. The corrosion behavior of the HAZ was studied using microstructure analysis, polarization curve experiments, and double-loop potentiodynamic reactivation experiments. The results show that (1) the covering welding current can promote the formation of austenite in the HAZ, and that the covering welding current has no strict correspondence with the formation of austenite; (2) increasing the welding gap properly can facilitate the formation of austenite; (3) increasing the covering welding current enhances the material’s pitting resistance, and a covering welding current of 70 A, coupled with a covering welding current of 100 A, represents a reasonable choice in terms of achieving a stronger pitting resistance; (4) in terms of intergranular corrosion resistance, increasing the covering welding current is not conducive to the intergranular corrosion resistance of the material, as the covering current will promote the precipitation of the secondary phase at the grain boundary, thus reducing its intergranular corrosion resistance; and (5) reducing the welding current appropriately contributes to improving the stability of the grain boundary. Full article
(This article belongs to the Special Issue Advances in Welding Process and Materials (2nd Edition))
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16 pages, 6304 KiB  
Article
The Influence of Various Welding Methods on the Microstructure and Mechanical Properties of 316Ti Steel
by Piotr Noga, Tomasz Skrzekut, Maciej Wędrychowicz, Marek St. Węglowski and Marcel Wiewióra
Materials 2024, 17(7), 1681; https://doi.org/10.3390/ma17071681 - 06 Apr 2024
Viewed by 385
Abstract
Austenitic stainless steels are very popular due to their high strength properties, ductility, excellent corrosion resistance and work hardening. This paper presents the test results for joining AISI 316Ti austenitic steel. The technologies used for joining were the most popular welding techniques such [...] Read more.
Austenitic stainless steels are very popular due to their high strength properties, ductility, excellent corrosion resistance and work hardening. This paper presents the test results for joining AISI 316Ti austenitic steel. The technologies used for joining were the most popular welding techniques such as TIG (welding with a non-consumable electrode in the shield of inert gases), MIG (welding with a consumable electrode in the shield of inert gases) as well as high-energy EBW welding (Electron Beam Welding) and plasma PAW (plasma welding). Microstructural examinations in the face, center and root areas of the weld revealed different contents of delta ferrite with skeletal or lathy ferrite morphology. Additionally, the presence of columnar grains at the fusion line and equiaxed grains in the center of the welds was found. Microstructural, X-ray and ferroscope tests showed the presence of different delta ferrite contents depending on the technology used. The highest content of delta ferrite was found in the TIG and PAW connectors, approximately 5%, and the lowest in the EBW connector, approximately 2%. Based on the tests carried out on the mechanical properties, it was found that the highest properties were achieved by the MIG joint (Rm, 616, Rp0.2 = 335 MPa), while the lowest were achieved by the PAW joint (Rm = 576, Rp0.2 = 315 MPa). Full article
(This article belongs to the Special Issue Advances in Welding Process and Materials (2nd Edition))
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23 pages, 9320 KiB  
Article
Tungsten Inert Gas Welding of 6061-T6 Aluminum Alloy Frame: Finite Element Simulation and Experiment
by Yang Hu, Weichi Pei, Hongchao Ji, Rongdi Yu and Shengqiang Liu
Materials 2024, 17(5), 1039; https://doi.org/10.3390/ma17051039 - 23 Feb 2024
Viewed by 427
Abstract
In order to address the irregularity of the welding path in aluminum alloy frame joints, this study conducted a numerical simulation of free-path welding. It focuses on the application of the TIG (tungsten inert gas) welding process in aluminum alloy welding, specifically at [...] Read more.
In order to address the irregularity of the welding path in aluminum alloy frame joints, this study conducted a numerical simulation of free-path welding. It focuses on the application of the TIG (tungsten inert gas) welding process in aluminum alloy welding, specifically at the intersecting line nodes of welded bicycle frames. The welding simulation was performed on a 6061-T6 aluminum alloy frame. Using a custom heat source subroutine written in Fortran language and integrated into the ABAQUS environment, a detailed numerical simulation study was conducted. The distribution of key fields during the welding process, such as temperature, equivalent stress, and post-weld deformation, were carefully analyzed. Building upon this analysis, the thin-walled TIG welding process was optimized using the response surface method, resulting in the identification of the best welding parameters: a welding current of 240 A, a welding voltage of 20 V, and a welding speed of 11 mm/s. These optimal parameters were successfully implemented in actual welding production, yielding excellent welding results in terms of forming quality. Through experimentation, it was confirmed that the welded parts were completely formed under the optimized process parameters and met the required product standards. Consequently, this research provides valuable theoretical and technical guidance for aluminum alloy bicycle frame welding. Full article
(This article belongs to the Special Issue Advances in Welding Process and Materials (2nd Edition))
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