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Special Issue "Laser Materials Processing"

A special issue of Materials (ISSN 1996-1944).

Deadline for manuscript submissions: 31 March 2018

Special Issue Editors

Guest Editor
Prof. Dr. Frank A. Müller

Friedrich Schiller University Jena, Otto Schott Institute of Materials Research (OSIM), Colloids, Surfaces, and Interfaces (CSI), Löbdergraben 32, 07743 Jena, Germany
Website | E-Mail
Interests: bio-inspired materials; biomaterials; biomineralization; laser materials processing; additive manufacturing; surface modification; nanoparticles
Guest Editor
Dr. Stephan Gräf

Friedrich Schiller University Jena, Otto Schott Institute of Materials Research (OSIM), Colloids, Surfaces, and Interfaces (CSI), Löbdergraben 32, 07743 Jena, Germany
Website | E-Mail
Interests: bio-inspired materials; laser materials processing; functional surfaces; surface structuring; laser-induced periodic surface structures (LIPSS)

Special Issue Information

Dear Colleagues,

Nowadays, industrial production processes are inconceivable without lasers. Lasers have been established in numerous areas of materials processing, like cutting, drilling and welding. A broad variety of available laser systems with different wavelengths, pulse durations, and intensities facilitate the processing of almost all types of materials, including metals, ceramics, semiconductors, polymers, and composites. The main advantages of laser-based technologies include their high flexibility and efficiency, the reproducible adjustability of processing parameters, and the excellent quality of processed products. The required amount of energy can be provided in a well-defined, locally limited volume with negligible heat transfer to surrounding components. These unique properties are continuously stimulating new applications of lasers as a tool in materials processing. Consequently, novel processing routes in surface engineering (micro- and nanostructuring; laser induced periodic surface structures), additive manufacturing (stereolithography; selective laser sintering), coating techniques (pulsed laser deposition; matrix assisted pulsed laser evaporation), and nanoparticle synthesis (laser ablation; laser vaporisation) are on their way from research to industrial application.

This Special Issue covers the whole spectrum of laser materials processing, ranging from novel trends in well-established industrial processing techniques like cutting and drilling, via the synthesis of functional nanoparticles and coatings, the fabrication of sub-wavelength surface structures up to additive manufacturing techniques for the preparation of 3D scaffolds. The performance and application of laser-processed materials in the fields of biomaterials, optics, energy and environmental technologies will be discussed. In addition, fundamental research concerning the interaction between laser radiation and matter, as well as simulations and modeling of formation processes and structure-property relations will be topics of specific interest.

It is our pleasure to invite you to submit a manuscript for this Special Issue. Full papers, short communications, as well as reviews, would be greatly appreciated.

Prof. Dr. Frank A. Müller
Dr. Stephan Gräf
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. Materials 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 1500 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

  • interaction between laser radiation and matter
  • novel trends in laser materials processing
  • micro- and nanoscale structures
  • laser induced periodic surface structures
  • selective laser sintering stereolithography
  • pulsed laser deposition
  • laser-based nanoparticle synthesis
  • strategies for the fabrication of bio-inspired materials
  • application of laser processed materials
  • simulation and modeling

Published Papers (1 paper)

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Research

Open AccessArticle Effects of Pulse Parameters on Weld Microstructure and Mechanical Properties of Extra Pulse Current Aided Laser Welded 2219 Aluminum Alloy Joints
Materials 2017, 10(9), 1091; doi:10.3390/ma10091091
Received: 18 August 2017 / Revised: 9 September 2017 / Accepted: 11 September 2017 / Published: 15 September 2017
PDF Full-text (32700 KB) | HTML Full-text | XML Full-text
Abstract
In order to expand the application range of laser welding and improve weld quality, an extra pulse current was used to aid laser-welded 2219 aluminum alloy, and the effects of pulse current parameters on the weld microstructure and mechanical properties were investigated. The
[...] Read more.
In order to expand the application range of laser welding and improve weld quality, an extra pulse current was used to aid laser-welded 2219 aluminum alloy, and the effects of pulse current parameters on the weld microstructure and mechanical properties were investigated. The effect mechanisms of the pulse current interactions with the weld pool were evaluated. The results indicated that the coarse dendritic structure in the weld zone changed to a fine equiaxed structure using an extra pulse current, and the pulse parameters, including medium peak current, relatively high pulse frequency, and low pulse duty ratio benefited to improving the weld structure. The effect mechanisms of the pulse current were mainly ascribed to the magnetic pinch effect, thermal effect, and electromigration effect caused by the pulse current. The effect of the pulse parameters on the mechanical properties of welded joints were consistent with that of the weld microstructure. The tensile strength and elongation of the optimal pulse current-aided laser-welded joint increased by 16.4% and 105%, respectively, compared with autogenous laser welding. Full article
(This article belongs to the Special Issue Laser Materials Processing)
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