Advanced Laser Processing of Alloys

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

Deadline for manuscript submissions: closed (31 August 2021) | Viewed by 3078

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Guest Editor
Aerospace and Mechanics, Faculty of Applied Science, Université de Liège, Quartier Polytech 1, Allée de la Découverte, 13A, B 4000 Liège, Belgium
Interests: additive manufacturing; friction stir processing; light alloys; metal matrix composites; tribology; thermal properties; microstructures; surface modification
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Special Issue Information

Dear Colleagues,

Advanced laser processing of alloys encompasses a wide variety of technologies. Indeed, these include not only the complete manufacturing of components by, e.g., laser-based additive manufacturing technologies, but also welding and joining, post-processing, or surface treatments. This large variety of processes provides limitless ways to tailor the microstructures of metallic alloys—in particular by allowing for the synthesis of strongly refined and/or out-of-equilibrium microstructures requiring specific characterization methods—and thus to optimize alloys’ usage properties.

An in-depth understanding of the microstructural evolution induced by the various advanced laser processing techniques and of the correlations between process parameters–microstructure–properties is key in order to reach the full potential of metallic alloys for a large number of applications, e.g., in the aeronautics, automotive, medical, energy, or chemical industry.

This Special Issue of Metals welcomes contributions on various topics in relation to advanced laser processing of alloys (please see the Keywords/Topics below). Particular attention will be given to microstructures in advanced laser processes, including experimental investigations as well as modeling of the thermal, thermo-mechanical, and thermo-metallurgical aspects of these processes.

Prof. Dr. Anne Mertens
Guest Editor

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Keywords

  • laser-based additive manufacturing
  • surface treatment
  • post-processing
  • welding and joining
  • microstructure
  • modeling
  • characterization
  • mechanical and tribological properties
  • thermal history

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Published Papers (1 paper)

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Research

13 pages, 7687 KiB  
Article
The Relationship between the Model of the Laser Biomimetic Strengthening of Gray Cast Iron and Matching between Different Brake Pads
by Haiyang Yang, Qingnian Wang, Ti Zhou and Hong Zhou
Metals 2020, 10(2), 184; https://doi.org/10.3390/met10020184 - 27 Jan 2020
Cited by 6 | Viewed by 2697
Abstract
When the surface of gray cast iron is subjected to laser irradiation and melted and then re-solidified, a material can be obtained that has a superior structure and properties to the base metal. On the surface of gray iron brake drums, the surface [...] Read more.
When the surface of gray cast iron is subjected to laser irradiation and melted and then re-solidified, a material can be obtained that has a superior structure and properties to the base metal. On the surface of gray iron brake drums, the surface of the raw material can be processed into a bionic coupling surface with different shapes, structures, and soft and hard tissues similar to the surface of an organism. The wear resistance and fatigue resistance of brake drum surfaces can be greatly improved. However, the relative wear characteristics of the friction pairs in brake systems show that performance improvements in brake systems are the result of appropriately matching the brake drum and brake pad. This paper studies the wear relationship between three kinds of commonly-used brake pads (semi-metallic, organic asbestos-free, and ceramic) and different biomimetic models of brake drum samples. The interaction mechanism and failure mode between three kinds of brake pads and bionic samples were determined. According to the wear test results, the matching relationship between the brake pads and the brake drum was analyzed and determined, which provides a basis for the application of bionic brake drums. Full article
(This article belongs to the Special Issue Advanced Laser Processing of Alloys)
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