Search for Articles:
Title / Keyword
Author / Affiliation / Email
Journal
Article Type
 
 
Advanced Search
 
Section
Special Issue
Volume
Issue
Number
Page
 
4.9
2.6
Journals
Metals
Special Issues
Development of Metallic Material Laser Additive Manufacturing
share announcement

Development of Metallic Material Laser Additive Manufacturing

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

Deadline for manuscript submissions: closed (31 January 2025) | Viewed by 4024

Special Issue Editor

Dr. Liuwei Zheng

E-Mail Website
Guest Editor
School of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, China
Interests: additive manufacturing; hydrogen embrittlement; microstructure characterization

Special Issue Information

Dear Colleagues,

Laser-based additive manufacturing (AM) processes for metallic materials generally have a complex non-equilibrium physical and chemical metallurgical properties, which are related to the materials and processes. A deep understanding of the relationship between materials, processes, microstructures, and properties is the key to developing advanced additive manufacturing technology for metallic materials.

This Special Issue of Metals, titled Development of Metallic Material Laser Additive Manufacturing, will focus on the new developments in the various aspects of metallic material additive manufacturing (AM). Specifically, we aim to understand the process–microstructure–property correlation of all major AM processes for metallic materials.

We strongly encourage the submission of articles that may include the following: (a) design and process of gradient structure or variable component for AM metallic materials; (b) multi-scale characterization and simulations for AM metallic materials; (c) microstructure–property correlation of AM metallic materials via in situ experimental methods; (d) AM metallic materials for special environmental applications, etc.

Dr. Liuwei Zheng
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.

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

  • laser additive manufacturing
  • microstructure
  • mechanical properties
  • laser powder bed melting
  • direct energy deposition
  • metallic materials

Benefits of Publishing in a Special Issue

  • Ease of navigation: Grouping papers by topic helps scholars navigate broad scope journals more efficiently.
  • Greater discoverability: Special Issues support the reach and impact of scientific research. Articles in Special Issues are more discoverable and cited more frequently.
  • Expansion of research network: Special Issues facilitate connections among authors, fostering scientific collaborations.
  • External promotion: Articles in Special Issues are often promoted through the journal's social media, increasing their visibility.
  • e-Book format: Special Issues with more than 10 articles can be published as dedicated e-books, ensuring wide and rapid dissemination.

Further information on MDPI's Special Issue policies can be found here.

Published Papers (3 papers)

Download All Papers
Order results
Result details
Show export options expand_more Show export options expand_less
Select all
Export citation of selected articles as:

Research

Jump to: Review

16 pages, 9704 KiB  
Article
Research on the Microstructure and Properties of QT400-18 Laser Cladding Remanufacturing
by Jiakai Yan, Peng Dong, Hongxia Zhang, Xujing Niu, Chen Liang and Kewei Li
Metals 2025, 15(3), 312; https://doi.org/10.3390/met15030312 - 13 Mar 2025
Viewed by 378
Abstract
To address the failure issue of local wear in QT400-18 transition shafts used in high-speed trains, laser cladding remanufacturing of a ductile cast iron surface was carried out using 45 wt.%Fe + 55 wt.% Inconel625 powder. The phase composition, microhardness, interfacial bonding strength, [...] Read more.
To address the failure issue of local wear in QT400-18 transition shafts used in high-speed trains, laser cladding remanufacturing of a ductile cast iron surface was carried out using 45 wt.%Fe + 55 wt.% Inconel625 powder. The phase composition, microhardness, interfacial bonding strength, and wear resistance of the cladding layer were analyzed. The results show that the cladding layer is primarily composed of a γ (Ni, Fe) solid solution and a small amount of eutectic carbides. The microstructure of the cladding layer forms columnar dendrites, cellular dendrites, and equiaxed crystals from bottom to top. The microstructure of the single-layer, single-pass interface consists of ferrite, acicular martensite, and ledeburite, while the multi-layer, multi-pass interface consists of ferrite, granular pearlite, and discontinuous ledeburite. The average microhardness of the single-layer, single-pass cladding layer is approximately 350 HV0.5, and the hardness of the fine-grained and coarse-grained regions of the multi-layer, multi-pass cladding layer is approximately 330 HV0.5 and 250 HV0.5, respectively. The interfacial bonding strength reaches 96.5% of the base material strength. The wear mechanism of the cladding layer is mainly mild abrasive wear, with significantly better wear resistance than the base material. Full article
(This article belongs to the Special Issue Development of Metallic Material Laser Additive Manufacturing)
►▼ Show Figures

Figure 1

33 pages, 44902 KiB  
Article
Additive Manufacturing of Tungsten Carbide (WC)-Based Cemented Carbides and Niobium Carbide (NbC)-Based Cermets with High Binder Content via Laser Powder Bed Fusion
by Fabio Miranda, Marcelo Otavio dos Santos, Rodrigo Condotta, Nathalia Marina Gonçalves Pereira, Daniel Rodrigues, Suzilene Real Janasi, Fernando dos Santos Ortega, Marcello Vertamatti Mergulhão, Rodrigo Santiago Coelho, René Ramos de Oliveira, Luis Gallego Martinez and Gilmar Ferreira Batalha
Metals 2024, 14(12), 1333; https://doi.org/10.3390/met14121333 - 25 Nov 2024
Viewed by 1753
Abstract
The additive manufacturing technique performed via laser powder bed fusion has matured as a technology for manufacturing cemented carbide parts. The parts are built by additive consolidation of thin layers of a WC and Co mixture using a laser, depending on the power [...] Read more.
The additive manufacturing technique performed via laser powder bed fusion has matured as a technology for manufacturing cemented carbide parts. The parts are built by additive consolidation of thin layers of a WC and Co mixture using a laser, depending on the power and scanning speed, making it possible to create small, complex parts with different geometries. NbC-based cermets, as the main phase, can replace WC-based cemented carbides for some applications. Issues related to the high costs and dependence on imports have made WC and Co powders emerge as critical raw materials. Furthermore, avoiding manufacturing workers’ health problems and occupational diseases is a positive advantage of replacing WC with NbC and alternative binder phases. This work used WC and NbC as the main carbides and three binders: 100% Ni, 100% Co, and 50Ni/50Co wt.%. For the flowability and spreadability of the powders of WC- and NbC-based alloy mixtures in the powder bed with high cohesiveness, it was necessary to build a vibrating container with a pneumatic turbine ranging from 460 to 520 Hz. Concurrently, compaction was promoted by a compacting system. The thin deposition layers of the mixtures were applied uniformly and were well distributed in the powder bed to minimize the defects and cracks during the direct sintering of the samples. The parameters of the L-PBF process varied, with laser scanning speeds from 25 to 125 mm.s─1 and laser power from 50 to 125 W. Microstructural aspects and the properties obtained are presented and discussed, seeking to establish the relationships between the L-PBF process variables and compare them with the liquid phase sintering technique. Full article
(This article belongs to the Special Issue Development of Metallic Material Laser Additive Manufacturing)
►▼ Show Figures

Figure 1

Review

Jump to: Research

36 pages, 8289 KiB  
Review
On the Use of Green and Blue Laser Sources for Powder Bed Fusion: State of the Art Review for Additive Manufacturing of Copper and Its Alloys
by Mankirat Singh Khandpur, Alberto Giubilini, Luca Iuliano and Paolo Minetola
Metals 2024, 14(12), 1464; https://doi.org/10.3390/met14121464 - 22 Dec 2024
Viewed by 1491
Abstract
Additive manufacturing (AM) is a layerwise production process that creates three-dimensional objects according to a digital model. This technology has demonstrated to be a promising alternative to conventional manufacturing methods for various industrial sectors, such as aerospace, automotive, biomedical, and energy. AM offers [...] Read more.
Additive manufacturing (AM) is a layerwise production process that creates three-dimensional objects according to a digital model. This technology has demonstrated to be a promising alternative to conventional manufacturing methods for various industrial sectors, such as aerospace, automotive, biomedical, and energy. AM offers several advantages, like design flexibility, material efficiency, functional integration, and rapid prototyping. As regards metal parts, conventional AM techniques using infrared laser sources face some limitations in processing high-reflectivity and high-conductivity materials or alloys, such as aluminum, copper, gold, and silver. These materials have low absorption of infrared radiation, which results in unstable and shallow melt pools, poor surface quality, and high porosity. To overcome these challenges, green and blue laser sources have been proposed for AM processes. This review provides an overview of the recent developments and applications of green and blue laser sources for powder bed fusion of copper and its alloys, focusing on the effects of process parameters on the melt pool dynamics, microstructure formation, and thermal and electrical properties of the fabricated parts. This review also presents the main applications of AM of copper and its alloys together with potential opportunities for future developments. Full article
(This article belongs to the Special Issue Development of Metallic Material Laser Additive Manufacturing)
►▼ Show Figures

Figure 1

Show export options expand_more Show export options expand_less
Select all
Export citation of selected articles as:
 
Displaying articles 1-3
Back to TopTop