Laser-Induced Surface Modification of Light Metal Alloys for Structural Applications

A special issue of Metals (ISSN 2075-4701). This special issue belongs to the section "Additive Manufacturing".

Deadline for manuscript submissions: closed (15 April 2023) | Viewed by 1647

Special Issue Editor


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Guest Editor
Laboratory for Material Surface Layer Analysis, Faculty of Mechanical Engineering, Regensburg University of Applied Sciences, 93053 Regensburg, Germany
Interests: materials engineering; surface treatment; microscopic analysis; additive manufacturing; residual stress; NDT methods

Special Issue Information

Dear Colleagues,

Due to the ever-increasing prices of fossil fuels, structural applications that use metallic components must further stress the minimization of payloads to save money. As a result, there is a growing demand for light metal alloys to replace components traditionally utilized in structural applications. As the surface of a component is the most exposed part during service, it is essential to improve the surface properties relative to the bulk of a material. Significant advancements in laser systems within recent years have highlighted laser technology as an economical and viable option for the surface treatment of metallic materials. Therefore, the laser processing of light metal alloys is expected to enhance the service performance of fabricated components together with the payload reduction.

This Special Issue of Metals focuses on laser-induced surface modification as a suitable post processing strategy to enhance the surface properties of light metal alloys used in structural applications. Emphasis is also given to the laser surface treatment of different contour shapes and the internal features of complex geometry components. Your valuable contribution from ongoing research investigations will help us to present a recent update on the progress in this field and to ascertain the further scope for research in this domain. Therefore, we would be grateful if you could contribute from your investigations regarding the effect of laser surface treatment on the modification and enhancement of the surface properties of light metal alloys used in structural applications.

Dr. Naresh Nadammal
Guest Editor

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Keywords

  • surface treatment
  • laser processing
  • aluminium alloys
  • magnesium alloys
  • titanium alloys
  • residual stresses

Published Papers (1 paper)

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Research

10 pages, 5964 KiB  
Article
Laser Cladding of Al 102 Powder on Al 4047 with Direct Energy Deposition
by Iksu Kim, Minsu Kim, Hyuntae Kim, Moon-Gu Lee and Yongho Jeon
Metals 2023, 13(5), 856; https://doi.org/10.3390/met13050856 - 28 Apr 2023
Cited by 1 | Viewed by 1369
Abstract
Large-scale serial production industries such as automotive and aerospace have focused on reducing weight to improve fuel economy, and many parts are manufactured from various aluminum alloys. Due to the ease of recycling of aluminum alloys, research on remanufacturing has not been very [...] Read more.
Large-scale serial production industries such as automotive and aerospace have focused on reducing weight to improve fuel economy, and many parts are manufactured from various aluminum alloys. Due to the ease of recycling of aluminum alloys, research on remanufacturing has not been very active. On the other hand, laser cladding on aluminum alloys is a surface modification and repair process that deposits a thin layer on a substrate using a laser beam whose output can be easily controlled. This makes it suitable for remanufacturing processes where thin layers of damaged parts can be easily repaired, and helps to save energy. In this study, laser cladding was performed using aluminum alloy powder (Al-102) containing Si to improve the surface hardness of Al 4047 used as automotive engine parts and repair damaged parts. Several experimental studies have been conducted regarding the effect on laser power and powder flow rate. In addition, the improvement effect through the hardness analysis of the cladded layer and the change of the microstructure through the cross-section analysis of the clad part are discussed. Finally, the experimental conditions analyzed in this study suggest a suitability for the actual remanufacturing process through multi-pass cladding through overlapping. Full article
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