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Metals
Special Issues
Progress in Laser Additive Manufacturing on Metal Material
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Progress in Laser Additive Manufacturing on Metal Material

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

Deadline for manuscript submissions: closed (31 December 2023) | Viewed by 1837

Special Issue Editors

Dr. Jayaraj Jayamani

E-Mail Website
Guest Editor
Materials Technology, School of Information and Engineering, Dalarna University, Falun, Sweden
Interests: microstructure, corrosion, and tribo-corrosion behavior of metallic and composites products produced by additive manufacturing and conventional techniques
Prof. Dr. Prashanth Konda Gokuldoss

E-Mail Website
Guest Editor
Department of Mechanical and Industrial Engineering, Tallinn University of Technology, Ehitajate Tee 5, 19086 Tallinn, Estonia
Interests: powder metallurgy; additive manufacturing; selective laser melting; meta-stable materials; amorphous alloys
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Laser additive manufacturing (LAM) has gained popularity in recent years where metallic materials are fabricated in 3D/4D using different laser-based processes like laser power-bed fusion (LPBF)/Selective laser melting (SLM), direct energy deposition (DED), laser-engineering near net shaped processing (LENS), selective laser sintering (SLS), direct metal laser sintering (DMLS), etc. With an increasing demand for both materials (development of new materials aligned with the processing conditions) and processes (improvement in processing conditions), the advances in the present field of LAM take place at a rapid pace. Hence, it warrants a Special Issue focusing on the progress in laser additive manufacturing of metal material with improved properties.

Scientific contributions are invited from scientists, researchers, engineers, and industry to disseminate recent inventions and developments in the areas of progress in laser additive manufacturing of metal materials, including alloy design for laser additive manufacturing, in situ process monitoring, process optimization, laser modulation, properties, machine learning, artificial intelligence, and big data analysis on laser additive manufacturing processes. Manuscripts on computational aspects, including simulations/modeling, are also welcome.

Dr. Jayaraj Jayamani
Prof. Dr. Prashanth Konda Gokuldoss
Guest Editors

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

  • alloy design for laser additive manufacturing
  • in situ process monitoring
  • process optimization
  • laser modulation
  • big data analysis on laser additive manufacturing processes
  • machine learning/artificial intelligence
  • materials characterization and testing
  • process modeling/simulation

Published Papers (1 paper)

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Research

12 pages, 2381 KiB  
Article
Effect of Annealing and Hot Isostatic Pressing on the Structure and Hydrogen Embrittlement Resistance of Powder-Bed Fusion-Printed CoCrFeNiMn High-Entropy Alloys
by Shulu Feng, Zhijiu Ai, Jiayi He, Bangjian Yang, Guoqing Gou and Lei Han
Metals 2023, 13(3), 630; https://doi.org/10.3390/met13030630 - 22 Mar 2023
Viewed by 1437
Abstract
As an additive-manufacturing (AM) technique, powder-bed fusion (PBF) shows tremendous potential in both the research and industrial communities. Research on the post-treatment of PBF-prepared products is a hot topic. Hydrogen embrittlement (HE) resistance is a practical necessity, especially in microstructures. Here, the effect [...] Read more.
As an additive-manufacturing (AM) technique, powder-bed fusion (PBF) shows tremendous potential in both the research and industrial communities. Research on the post-treatment of PBF-prepared products is a hot topic. Hydrogen embrittlement (HE) resistance is a practical necessity, especially in microstructures. Here, the effect of annealing and hot isostatic pressing (HIP) on the properties of PBF technology-printed CoCrFeNiMn high-entropy alloys (HEAs) is investigated. The results show that these two post-thermal treatment approaches can release residual stress (from approximately 338 to 44 MPa) from PBF-printed samples, which is the main reason for declines in hardness (from approximately 211 to 194 HV). In addition, both annealing and HIP can reduce HE sensitivity, thus improving resistance to HE, with elongation increasing by 75.4% and 85.4% after annealing and HIP, respectively. In summary, both post-thermal treatments are of great significance to the development of HEAs with optimized structures and protection against HE, which can contribute to the development of these behaviors during application. Full article
(This article belongs to the Special Issue Progress in Laser Additive Manufacturing on Metal Material)
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