Surface Modification, Repairing and Forming of Metallic Materials by Additive Manufacturing

A special issue of Coatings (ISSN 2079-6412). This special issue belongs to the section "Surface Characterization, Deposition and Modification".

Deadline for manuscript submissions: 31 January 2025 | Viewed by 325

Special Issue Editor


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Guest Editor
School of Mechanical Engineering, Dalian Jiaotong University, Dalian 116028, China
Interests: additive manufacturing

Special Issue Information

Dear Colleagues,

With the development of heavy-haul and high-speed trains, the failures of parts in rail traffic must be responded to in a serious and effective manner. In order to prolong the service life of parts, performance strengthening via the creation of coatings on the surface of parts in their development, and the repairing of the damaged parts based on the additive manufacturing (AM) following any failure both play an increasingly important role in rail transit. In addition, with the increasing global attention being devoted to environmental protection and the concept of green development, ensuring parts are lightweight in rail transit has become an important way for the improving of rail transit operation efficiency, energy saving, emission reduction, and the promotion of material technology innovation. However, applying AM technology to rail transit still poses a significant challenge due to the difficulty of precision-property coordinated controlling and the current high demand. Research on the application of AM in rail transit requires continuous efforts.

In this Special Issue, we are accepting manuscripts that report on the recent developments in this area. Research areas may include (but are not limited to) the following: the design, processing, and characterization of coatings, novel approaches of material design and AM processing for rail transit, lightweight design, and the performance of parts in rail transit.

We look forward to receiving your contributions.

Dr. Xinlin Wang
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. Coatings 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 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

  • rail transit
  • additive manufacturing
  • coatings
  • repairing
  • lightweight of parts

Published Papers (1 paper)

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Research

14 pages, 5459 KiB  
Article
Effects of ZrW2O8 Content on the Microstructures and Properties of Composite Coatings Produced by Laser Cladding
by Pengxian Zhang, Chang Liu and Yibin Pang
Coatings 2024, 14(5), 649; https://doi.org/10.3390/coatings14050649 - 20 May 2024
Abstract
Addressing the issue of cracking in laser-cladding Ni-based composite coatings with WC particles, this study explored an approach to fabricating a crack-free coating by incorporating ZrW2O8 powder. The influence of varying ZrW2O8 contents on the crack susceptibility, [...] Read more.
Addressing the issue of cracking in laser-cladding Ni-based composite coatings with WC particles, this study explored an approach to fabricating a crack-free coating by incorporating ZrW2O8 powder. The influence of varying ZrW2O8 contents on the crack susceptibility, microstructure, microhardness, wear resistance, and corrosion resistance of Ni60/WC composite coatings was systematically examined. The findings indicate that the ZrW2O8 content significantly impacts the microstructure and functional properties of the coating. Furthermore, it is suggested that the main contributors to preventing crack formation and diffusion are believed to be the pressure interaction caused by the negative expansion effect of ZrW2O8, as well as the in situ phase transition and diffusion toughening of ZrO2 during its decomposition process. The feasibility of achieving crack selfhealing through the addition of specific amounts of ZrW2O8 powder has been conclusively demonstrated. Full article
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