Advances in Laser Processing of Metals and Alloys

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

Deadline for manuscript submissions: 30 July 2026 | Viewed by 745

Special Issue Editor


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Guest Editor
Department of Physics, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
Interests: atomic and molecular optical spectroscopy; laser materials microprocessing; laser ablation; laser-induced plasma plume; nanocomposites; nanomagnetism; semiconductor optoelectronics; thin films technology
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Special Issue Information

Dear Colleagues,

The laser processing of metals and alloys utilizes a focused, high-energy laser beam to precisely cut, weld, mark, or modify metal surfaces via sublimation, vaporization, or melting.

This technique has certain advantages compared to traditional material processing techniques, including a non-contact process, precise and fast processing, scalability, versatility, and adaptability. Furthermore, the laser-induced plasma can be used for material analysis and the elucidation of laser–material interaction mechanisms. It is used in various applications and industries from automotive to medical.

Metals invites papers for a Special Issue entitled “Advances in Laser Processing of Metals and Alloys.” Experimental and theoretical articles will be accepted. Topics of interest include, but are not limited to, the following:

  • Laser surface texturing;
  • Laser engraving;
  • Laser metal surface microfabrication;
  • Laser drilling and cutting;
  • Laser micromachining;
  • Laser ablation of thin metallic films;
  • Laser metallic coating removal;
  • Laser forming;
  • Laser hardening;
  • Laser amorphization;
  • Laser crystallization;
  • Laser cladding;
  • Laser ablation nanoparticles;
  • Laser material analysis;
  • Laser ablation of metal alloys;
  • Laser ablation of metallic molecular compounds.

Dr. Nikolaos G. Semaltianos
Guest Editor

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 250 words) can be sent to the Editorial Office for assessment.

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

  • laser materials processing
  • laser ablation
  • laser micro/nanofabrication
  • laser-induced plasma
  • laser-based material analysis

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Published Papers (1 paper)

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Research

16 pages, 6460 KB  
Article
On the Effect of Heat-Treatments in a PBF-LB/M Processed FeCrMnNi Medium-Entropy Alloy
by David Maximilian Diebel, Thomas Wegener, Zhengfei Hu and Thomas Niendorf
Metals 2026, 16(3), 351; https://doi.org/10.3390/met16030351 - 21 Mar 2026
Viewed by 264
Abstract
FeCrMnNi-based alloys, derived from the well-known Cantor high-entropy alloy, have attracted increasing attention due to their excellent strength–ductility balance. Additively manufactured FeCrMnNi variants are characterized by superior hardness compared to their conventionally processed counterparts. In the present study an optimized composition of the [...] Read more.
FeCrMnNi-based alloys, derived from the well-known Cantor high-entropy alloy, have attracted increasing attention due to their excellent strength–ductility balance. Additively manufactured FeCrMnNi variants are characterized by superior hardness compared to their conventionally processed counterparts. In the present study an optimized composition of the FeCrMnNi medium-entropy alloy was additively manufactured via laser-based powder bed fusion and subsequently subjected to systematic heat treatments. CALPHAD simulations were applied to select the specific composition and post-processing heat treatment conditions, where the latter aimed at promoting the evolution of a dual-phase microstructure. Experimental characterization included X-ray diffraction, scanning electron microscopy, energy-dispersive X-ray spectroscopy, and electron backscatter diffraction, as well as Vickers hardness and tensile testing. A microstructure could be established dominated by a face-centered cubic (FCC) phase with minor fractions of a secondary phase in the non-treated condition. The evolution of an additional body-centered cubic (BCC) phase upon heat treatment at and above 700 °C was observed. The emerging BCC phase as well as increasing fractions of the secondary phase were accompanied by significantly increased hardness and strength, surpassing the literature values of similar compositions. However, a heat treatment at 1000 °C resulted in recrystallization and an increase in grain size, while the decreasing fraction of the secondary phase eventually led to a reduction in strength. These findings underscore the combined potential of composition optimization and targeted post-processing to enhance the mechanical performance of additively manufactured FeCrMnNi alloys. Full article
(This article belongs to the Special Issue Advances in Laser Processing of Metals and Alloys)
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