Advances in Laser Cladding and Laser-Aided Additive Manufacturing Technology

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

Deadline for manuscript submissions: 31 October 2024 | Viewed by 1816

Special Issue Editor


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Guest Editor
School of Mechanical and Electrical Engineering, China University of Mining and Technology, Xuzhou 221116, China
Interests: laser material processing; tribology; surface modification; additive manufacturing; materials science

Special Issue Information

Dear Colleagues,

Metals for industrial applications require several properties, such as ductility, malleability, hardness, strength, wear and corrosion resistance, thermal expansion, availability, reusability, etc. When it comes to mechanical and tribological applications, structural, hardness, strength, roughness and surface properties are the primary necessities. However, achieving all the properties in a single metal is not easy.

Lasers are used in many industries, and their application in various fields is only growing with time. Laser-assisted machinery highlights how lasers have helped us reach the forefront of technology making rapid changes possible, including the improvement of metallurgical, mechanical and tribological properties, a battle many scientists throughout the world battle with to limit energy and material losses. Lasers have become a significant and impressive tool for additive manufacturing and various surface modification methods, such as hardening, melting, alloying, cladding, texturing, etc. Laser cladding and laser-aided additive manufacturing techniques offer extensive promises to accomplish preferred mechanical and tribological properties.

Challenges in laser cladding, laser-aided additive manufacturing and mechanical and tribological issues are difficult and interesting. People are working with enthusiasm, tenacity and dedication to develop novel techniques/methods of analysis to provide excellent solutions. In this new age of global interconnectivity and interdependence, it is necessary to provide the latest research outcomes, with state-of-the art knowledge on the frontiers in laser cladding and laser-aided additive manufacturing techniques. This Special Issue is a good step in that direction.

Dr. Natarajan Jeyaprakash
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. Metals is an international peer-reviewed open access monthly journal published by MDPI.

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Keywords

  • laser material processing
  • laser cladding
  • additive manufacturing
  • mechanical properties
  • wear
  • corrosion
  • roughness
  • material science
  • characterization

Published Papers (1 paper)

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Research

20 pages, 5317 KiB  
Article
Mechanism Correlating Microstructure and Wear Behaviour of Ti-6Al-4V Plate Produced Using Selective Laser Melting
by Natarajan Jeyaprakash, Che-Hua Yang, Govindarajan Prabu and Nachimuthu Radhika
Metals 2023, 13(3), 575; https://doi.org/10.3390/met13030575 - 13 Mar 2023
Cited by 4 | Viewed by 1133
Abstract
In the present study, a dry sliding wear test has been conducted to analyse the wear rate of Ti-6Al-4V alloy specimens which were fabricated using selective laser melting and conventional methods. Microstructure, micro- and nanohardness, and wear behaviour of selective laser melting specimens [...] Read more.
In the present study, a dry sliding wear test has been conducted to analyse the wear rate of Ti-6Al-4V alloy specimens which were fabricated using selective laser melting and conventional methods. Microstructure, micro- and nanohardness, and wear behaviour of selective laser melting specimens were investigated and compared with commercially available conventionally fabricated Ti-6Al-4V specimens. The mechanism correlating microstructure and wear behaviour of conventional and selective laser melting based Ti-6Al-4V specimens have been explained. The microhardness of the selective laser melting specimen was improved by around 22.4% over the specimen from the conventional method. The selective laser melting specimen showed broadened peaks and an increase in intensity height greater than that of the conventional specimen due to the presence of the martensite phase. The selective laser melting specimen possessed 41.4% higher nanohardness than that of the conventional specimen. The selective laser melting specimen had a 62.1% lower wear rate when compared to that of the conventional specimen. The selective laser melting specimen exhibited 62.7% less coefficient of friction than that of the conventional specimen at a 50 N load with 1.2 m/s sliding velocities. The finer needle-like microstructures of the specimen produced using the selective laser melting process had higher wear resistance, as it had higher hardness than the conventional specimen. Full article
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