Search for Articles:
Title / Keyword
Author / Affiliation / Email
Journal
Article Type
 
 
Advanced Search
 
Section
Special Issue
Volume
Issue
Number
Page
 
4.7
3.4
Journals
Coatings
Special Issues
Surface Engineering Treatments and Innovative Coatings for Additive Manufacturing Materials
share announcement

Surface Engineering Treatments and Innovative Coatings for Additive Manufacturing Materials

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

Deadline for manuscript submissions: 20 July 2024 | Viewed by 4419

Special Issue Editors

Dr. Okan Unal

E-Mail Website
Guest Editor
Department of Mechanical Engineering, Karabuk University, Karabuk 78100, Turkey
Interests: fatigue; surface engineering; additive manufacturing; railway engineering; failure retardation; nanomaterials; severe plastic deformation
Special Issues, Collections and Topics in MDPI journals
Dr. Erfan Maleki

E-Mail Website
Guest Editor
National Center for Additive Manufacturing Excellence (NCAME), Department of Mechanical Engineering, Auburn University, Auburn, AL 36849, USA
Interests: additive manufacturing; fatigue; fracture mechanics; surface engineering; nanostructured materials

Special Issue Information

Dear Colleagues,

In recent years, parts produced by additive manufacturing instead of traditional manufacturing have been selected more widely in industrial applications. The manufacturing of mechanical components with a wide variety of chemical compounds and complex geometries has placed the additive manufacturing process on the agenda of the entire scientific and industrial community in a short time.

Due to the widespread use of manufacturing in recent years, in areas such as coatings and surface engineering applications, mechanical and thermal surface treatments have become remarkable as post-processes with which to eliminate some performance deficiencies. Combining the advantages of additive manufacturing with surface engineering applications, contributing to the goal of competing with materials manufactured by conventional methods, has been seen as an important field of study for scientists in recent years.

This scope of this Special Issue will serve as a forum for papers addressing the following concepts:

  • Manufacturing characterization and the determination of the mechanical properties of additive manufacturing based on a theoretical and/or practical simulation;
  • Determination of the service life performance of additive manufacturing parts;
  • Mechanical/thermal surface treatments and coating operations for additive manufacturing parts;
  • Manufacturing and performance optimization of additive manufacturing;
  • Optimization of surface engineering and coating processes of additive manufacturing;
  • Innovative coating and surface engineering applications and optimization;
  • Innovative coating and surface engineering application modeling, finite element analysis, and optimization.

Dr. Okan Unal
Dr. Erfan Maleki
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. 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

  • additive manufacturing
  • surface engineering
  • coatings
  • nanostructured materials
  • performance optimization

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

28 pages, 17574 KiB  
Article
The Effect of Laser Shock Peening (LSP) on the Surface Roughness and Fatigue Behavior of Additively Manufactured Ti-6Al-4V Alloy
by Krista Dyer, Samira Ghadar, Sanin Zulić, Danijela Rostohar, Ebrahim Asadi and Reza Molaei
Coatings 2024, 14(1), 110; https://doi.org/10.3390/coatings14010110 - 15 Jan 2024
Viewed by 861
Abstract
Laser shock peening (LSP) uses plasma shock waves to induce compressive residual stress at the surface of a component which has the potential to improve its fatigue properties. For AM parts, the existence of internal defects, surface roughness, and tensile residual stresses leads [...] Read more.
Laser shock peening (LSP) uses plasma shock waves to induce compressive residual stress at the surface of a component which has the potential to improve its fatigue properties. For AM parts, the existence of internal defects, surface roughness, and tensile residual stresses leads to noticeably lower fatigue strength compared to materials produced through conventional processes. Furthermore, there is a tendency for greater scatter in the fatigue behavior of these parts when compared to traditionally manufactured components. In this study, the effect of LSP on the roughness and fatigue behavior of Ti-6Al-4V alloy constructed through Laser Powder Bed Fusion (L-PBF) technique was investigated. Two types of samples were designed and tested: as-built surface air foil samples for four-point bending tests and machined surface straight gage samples for uniaxial fatigue testing. Two sets of process parameters, optimized and non-optimized, were also used for the fabrication of each sample type. It was found that LSP had negative effects on the smooth (i.e., machined) surface samples, whereas for as-built surfaces the roughness was enhanced by decreasing the sharpness of the deep valleys and partially remelting the loosely bonded particles on the peaks. It was found that the scatter of the fatigue data decreased for optimized machined samples, while no clear improvement was observed in their lives. However, all non-optimized samples showed improvements in fatigue lives after the LSP process. Full article
(This article belongs to the Special Issue Surface Engineering Treatments and Innovative Coatings for Additive Manufacturing Materials)
►▼ Show Figures

Figure 1

18 pages, 13890 KiB  
Article
Aluminium-Based Dissimilar Alloys Surface Composites Reinforced with Functional Microparticles Produced by Upward Friction Stir Processing
by Filipe Moreira, Pedro M. Ferreira, Rui J. C. Silva, Telmo G. Santos and Catarina Vidal
Coatings 2023, 13(5), 962; https://doi.org/10.3390/coatings13050962 - 21 May 2023
Cited by 5 | Viewed by 1501
Abstract
Surface metal matrix composites offer an excellent solution for applications where surface properties play a crucial role in components’ performance and durability, such as greater corrosion resistance, better wear resistance, and high formability. Solid-state processing techniques, such as friction surfacing and friction stir [...] Read more.
Surface metal matrix composites offer an excellent solution for applications where surface properties play a crucial role in components’ performance and durability, such as greater corrosion resistance, better wear resistance, and high formability. Solid-state processing techniques, such as friction surfacing and friction stir welding/processing, offer several advantages over conventional liquid-phase processing methods. This research investigated the feasibility of producing surface composites of aluminium-based dissimilar alloys reinforced with functional microparticles through experimental validation, determined the process parameters that resulted in a more homogeneous distribution of the particles in the surface composites, and enhanced the understanding of Upward Friction Stir Processing (UFSP) technology. The production of aluminium-based dissimilar alloys (AA 7075-T651 and AA 6082-T651) surface composites reinforced with SiC particles was studied, and it was concluded that the macrography and micrography analyses, scanning electron microscopy (SEM) analysis, microhardness measurements, and eddy currents technique reveal an extensive and homogeneous incorporation of SiC particles. In the stirred zone, a decrease of approximately 20 HV 0.5 in hardness was observed compared to the base material. This reduction is attributed to the weakening effect caused by low-temperature annealing during UFSP, which reduces the strengthening effect of the T651 heat treatment. Additionally, the presence of particles did not affect the surface composite hardness in the stirred zone. Furthermore, despite the presence of significant internal defects, SEM analyses revealed evidence of the lower alloy merging with the upper zone, indicating that the lower plate had a role beyond being merely sacrificial. Therefore, the production of bimetallic composites through UFSP may offer advantages over composites produced from a monometallic matrix. The results of the eddy currents testing and microhardness measurements support this finding and are consistent with the SEM/EDS analyses. Full article
(This article belongs to the Special Issue Surface Engineering Treatments and Innovative Coatings for Additive Manufacturing Materials)
►▼ Show Figures

Figure 1

13 pages, 3304 KiB  
Article
Effects of Laser Shock Peening on Corrosion Resistance of Additive Manufactured AlSi10Mg
by Erfan Maleki, Okan Unal, Shuai Shao and Nima Shamsaei
Coatings 2023, 13(5), 874; https://doi.org/10.3390/coatings13050874 - 06 May 2023
Cited by 1 | Viewed by 1599
Abstract
Mechanical properties of Al alloys make them an ideal candidate for different sections of marine, aerospace, automotive, etc. industries. Recently taking the advantages of additive manufacturing (AM), many complex infrastructures/components can be fabricated with very high design freedom via Al alloys. Although Al [...] Read more.
Mechanical properties of Al alloys make them an ideal candidate for different sections of marine, aerospace, automotive, etc. industries. Recently taking the advantages of additive manufacturing (AM), many complex infrastructures/components can be fabricated with very high design freedom via Al alloys. Although Al alloys have good natural corrosion resistance, however improving this property attracts lots of attention in the past few years. Post-processing methods can play a key role for addressing the issues related to internal and surface anomalies associated with as-built AM parts. Generally, these anomalies have detrimental effects on mechanical properties. In the present study, the effect of laser shock peening (LSP) treatment with different laser pulse overlaps and energies was investigated comprehensively on microstructure, surface texture, porosity, hardness, residual stresses as well as corrosion resistance of laser powder bed fused (L-PBF) AlSi10Mg samples. LSP provides strain deformation on the surface, and the deformation enhances by laser beam energy. LSP1 (laser energy of 1.5 J and 50% overlap) and LSP3 (laser energy of 4.5 J and 50% overlap) introduce maximum local strain of 7.5 and 10.7, respectively. The surface roughness of as-built state µm in terms of Rv was effectively diminished to 16.33 after LSP6 (laser energy of 4.5 J and 75% overlap). The results indicated that due to the modified surface texture, improved hardness and induced high compressive residual stresses in the surface layer. (surface hardness improvement and inducing high surface compressive residual stresses were obtained after LSP6 up to 26% and −289 MPa, respectively); the LSP treated samples exhibited higher corrosion resistance with the corrosion rate decreasing down to 50% as compared to the as-built state. Full article
(This article belongs to the Special Issue Surface Engineering Treatments and Innovative Coatings for Additive Manufacturing Materials)
►▼ 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