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Special Issue "Laser-Assisted Processing of Metals and Alloys"

A special issue of Metals (ISSN 2075-4701).

Deadline for manuscript submissions: 31 March 2022.

Special Issue Editors

Dr. Andrei C. Popescu
E-Mail Website
Guest Editor
Center for Advanced Laser Technologies (CETAL), National Institute for Lasers, Plasma and Radiation Physics, 077125 Magurele, Romania
Interests: laser additive manufacturing; enhanced topology; metal matrix composites; laser processing; biocompatible materials; laser thin film deposition techniques
Special Issues and Collections in MDPI journals
Dr. Liviu Duta
E-Mail Website
Guest Editor
Lasers Department, National Institute for Lasers, Plasma and Radiation Physics, 077125 Magurele, Romania
Interests: thin film and nanoparticles synthesis; biocompatible and bioactive materials for medical applications; pulsed laser technologies
Special Issues and Collections in MDPI journals
Dr. Ion N. Mihailescu
E-Mail Website
Guest Editor
Lasers Department, National Institute for Lasers, Plasma and Radiation Physics, 077125 Magurele, Romania
Interests: pulsed laser deposition; modification and characterization of nanostructured thin coatings; matrix assisted pulsed laser evaporation (MAPLE); laser surface studies and processing; biomaterials thin layers; tissue engineering; biomimetic metallic implants; optoelectronics and sensors
Special Issues and Collections in MDPI journals

Special Issue Information

Dear Colleagues,

This is an open invitation to contribute to a Special Issue of Metals on Laser-Assisted Processing of Metals and Alloys.

We start from the premise that any material could be melted/vaporized under high intensity laser irradiation by either pulses or continuous beam. New top industrial applications can be envisaged and designed on this basis. Thus, one can tune the melting process to develop high-performance cutting, welding, marking or additive manufacturing technologies. As the laser beam can be focused in a very narrow spot, these operations can be conducted with a precision in the micrometric range. This is difficult to reach by other processing techniques.

On the other hand, laser beams can hardly process thick metal sheets because of the mandatory removal of large amounts of molten material from the irradiation site, and the inherent geometrical difficulties. Moreover, the most powerful laser sources in IR (e.g., CO2 at 10.6 μm) are incompatible with common metals used in industry (Al or Cu), due to the high reflectivity/low absorptivity (energy transfer) at these wavelengths.

New industrial challenges were proposed in recent years via various laser-assisted processes, such as welding of incompatible materials for cells of electrical batteries, relief marking by laser cladding, heterogeneous laser welding, thermal treatments by laser irradiation, laser microstructuring for improving surface properties or metal nanoparticles synthesis.

In additive manufacturing, laser beams are used for in situ building and alloying metal and metal matrix composite parts. Multilayer metal structures can be synthesized by laser melting deposition or configurations with enhanced topology and convoluted shapes, impossible to manufacture by conventional casting, become feasible via layer by layer build approaches.

This Special Issue is opened to specialists in materials science and metallurgy, where lasers stand for a processing tool of metallic materials. High quality, novel and original research papers or reviews that highlight the latest trends in laser-assisted processing of metallic materials will be welcomed to this Special Issue.

Waiting for your important contributions and wishing you prolific scientific achievements under these hard pandemic times!

Dr. Andrei C. Popescu
Dr. Liviu Duta
Dr. Ion N. Mihailescu
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 papers will be 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 1800 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

  • laser-assisted processing
  • laser additive manufacturing
  • laser cutting
  • laser welding
  • laser marking
  • laser microstructuring
  • in situ alloying
  • laser evaporation of metals
  • metal nanoparticles synthesis

Published Papers (1 paper)

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Research

Article
Ameliorative Corrosion Resistance and Microstructure Characterization of 2205 Duplex Stainless Steel by Regulating the Parameters of Pulsed Nd:YAG Laser Beam Welding
Metals 2021, 11(8), 1206; https://doi.org/10.3390/met11081206 - 28 Jul 2021
Cited by 3 | Viewed by 332
Abstract
Welding parameters can greatly affect the final product. In this study, there was a variation given on the pulse energy, i.e., heat input parameters. The microstructure was analyzed and presented in relation to the efficiency of corrosion. The microstructural study showed the changes [...] Read more.
Welding parameters can greatly affect the final product. In this study, there was a variation given on the pulse energy, i.e., heat input parameters. The microstructure was analyzed and presented in relation to the efficiency of corrosion. The microstructural study showed the changes of the fusion zone (FZ) and the heat-affected zone (HAZ) with an increase in pulse energy. The development of a prominent austenite process on the weld material had a prolonged effect on its corrosion resistance property. Electrochemical impedance spectroscopy (EIS) and potentiodynamic measurements were used to test the electrochemical activity of laser-weld 2205 duplex stainless steel in an aqueous 3.5% NaCl solution. Finally, the findings of the EIS analysis were supported by Raman spectroscopy. Based on the obtained results, the 2205 duplex stainless steel (DSS) weld obtained at a higher pulse energy showed higher corrosion resistance than the welded sample obtained at a low pulse energy. The impedance spectroscopy confirmed a smooth surface property with an increase in the pulse energy and the presence of an oxide layer, a finding also confirmed by the Raman spectroscopy measurements. Full article
(This article belongs to the Special Issue Laser-Assisted Processing of Metals and Alloys)
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Planned Papers

The below list represents only planned manuscripts. Some of these manuscripts have not been received by the Editorial Office yet. Papers submitted to MDPI journals are subject to peer-review.

Title: Qualitative defects assessment in laser welded AlMg alloys by correlations with high speed imaging analyses
Authors: S. Mihai; D. Chioibasu; L. Duta; M. Leparoux; A. C. Popescu
Affiliation: National Institute for Lasers, Plasma and Radiation Physics, 077125 Magurele, Romania

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