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Influence of Laser Processing on Materials Properties
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Influence of Laser Processing on Materials Properties

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 1860

Special Issue Editor

Dr. Damian Przestacki

E-Mail Website
Guest Editor
Faculty of Mechanical Engineering, Institute of Mechanical Technology, Poznan University of Technology, ul. Piotrowo 3, 61-138 Poznan, Poland
Interests: laser technology; laser-assisted machining; laser cladding; machining; turning; laser-assisted milling; laser-assisted turning; surface engineering; laser materials processing; laser surface alloying with boron; laser modification of surface layers
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

We are pleased to invite you to submit a manuscript to a Special Issue of the journal Materials, “Influence of Laser Processing on Materials Properties”.

Lasers are increasingly becoming the light source of choice for a large range of scientific and industrial applications thanks to their inherent technological advantages. In addition to being employed as a technological application tool, lasers provide an active platform for investigating a wide range of phenomena, allowing us to advance our understanding of general processes in nature and develop novel solutions for applications. This Special Issue aims to provide an overview of the new advances in this field, ranging from fundamental process phenomena to applications.

The main aim of this Special Issue is to present discussions on laser processing materials, the control of materials quality, and process simulation/modelling. It also covers the whole spectrum of new-generation materials, such as composites, cemented carbides, and superalloys and alloys with laser surface alloying to build tailored composition structures and properties. Therefore, feedstock powders, interactions between heat sources and feedstock, the parametric study of processes, developed microstructures and their defects, and the mechanical and physical properties of the new generation of engineering materials are also topics of particular interest to this Special Issue.

Dr. Damian Przestacki
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 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

  • laser cladding
  • laser-assisted machining
  • laser forming
  • functional properties
  • laser-based processing
  • microstructure
  • mechanical and nanomechanical properties of the surface layers
  • laser-assisted milling
  • laser-assisted turning
  • surface engineering
  • laser materials processing
  • laser surface alloying with boron

Published Papers (2 papers)

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Research

15 pages, 4521 KiB  
Article
High-Performance Organic Field-Effect Transistors of Liquid Crystalline Organic Semiconductor by Laser Mapping Annealing
by Luying Huang, Fenghua Liu, Jiachen Bao, Xiaoman Li and Weiping Wu
Materials 2024, 17(6), 1395; https://doi.org/10.3390/ma17061395 - 19 Mar 2024
Viewed by 789
Abstract
Organic semiconductors (OSCs), especially small molecule semiconductors, have received increasing attention due to their good designability and variability. Phase transitions and interfacial properties have a decisive influence on device performance. Here, 2-Dodecyl-7-phenyl[1]benzothieno[3,2-b][1]benzothiophene (Ph-BTBT-12) devices are treated with low-power laser annealing, which [...] Read more.
Organic semiconductors (OSCs), especially small molecule semiconductors, have received increasing attention due to their good designability and variability. Phase transitions and interfacial properties have a decisive influence on device performance. Here, 2-Dodecyl-7-phenyl[1]benzothieno[3,2-b][1]benzothiophene (Ph-BTBT-12) devices are treated with low-power laser annealing, which is able to avoid the influence of the dewetting effect on the hole mobility of organic semiconductor materials. Ultraviolet ozone treatment and self-assembled monolayer treatment can improve the performance and stability of the device. Moreover, after low-temperature thermal annealing, the hole mobility of the device can even reach as high as 4.80 cm2 V−1 s−1, and we tested the optical response of the device to the ultraviolet wavelength and found that its maximum optical responsivity was 8.2 AW−1. Full article
(This article belongs to the Special Issue Influence of Laser Processing on Materials Properties)
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16 pages, 160789 KiB  
Article
The Influence of Selected Laser Engraving Parameters on Surface Conditions of Hybrid Metal Matrix Composites
by Michał Szymański, Damian Przestacki and Paweł Szymański
Materials 2023, 16(19), 6575; https://doi.org/10.3390/ma16196575 - 6 Oct 2023
Viewed by 864
Abstract
Hybrid metal matrix composites (HMMCs) are a special type of material, possessing combined properties that belong to alloys and metals according to market demands. Therefore, they are used in different areas of industry and the properties of this type of material are useful [...] Read more.
Hybrid metal matrix composites (HMMCs) are a special type of material, possessing combined properties that belong to alloys and metals according to market demands. Therefore, they are used in different areas of industry and the properties of this type of material are useful in engineering applications, e.g., in aircraft engines and electrotechnical parts. The structure of the material requires a number of scientific studies to develop an appropriate processing technology. The paper presents the susceptibility of material from the HMMCs group with the EN AC-44300 (AISi12(Fe)) aluminum alloy matrix with a two-component reinforcement made of alumina particles (AP) and aluminosilicate fibers (AF) to thermal treatment with a laser beam. During this process, laser engraving of the researched material with variable beam power Pav and variable speed of the laser head vl were carried out. A metallographic analysis of the material was carried out. After laser engraving, surface structural changes of the material were determined. The properties of the surface geometric structure of processed material were also examined. Presented studies concern laser engraving on the surface of composite from the HMMC group, which was made by vacuum infiltration. Thanks to this method, it is possible both to produce shaped and precise composite castings with saturated reinforcement and to consequently minimize machining losses. Metal–ceramic composites from the HMMC group are hard-to-machine materials which create problems during machining. The aim of these studies was to develop a laser engraving technology with Al matrix composite with the addition of Al2O3 particles and aluminosilicate fibers, which constitute the reinforcement. The focus was on the selection of engraving parameters (beam power and speed of movement of the laser head). Clear examples of engraving, suitable for macro-assessment, were obtained with minimal change in the initial surface structure of the composite. Full article
(This article belongs to the Special Issue Influence of Laser Processing on Materials Properties)
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