Advanced Cold Spraying Technology II

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

Deadline for manuscript submissions: closed (31 May 2024) | Viewed by 3065

Special Issue Editors

Institute of New Materials, Guangdong Academy of Sciences, Guangzhou 510651, China
Interests: cold spray; thermal spray; additive manufacturing; metal coatings; metal matrix composite coatings; anti-corrosion coatings; tribological properties
Special Issues, Collections and Topics in MDPI journals
Institute of New Materials, Guangdong Academy of Sciences, Guangzhou, China
Interests: cold spray; metal-matrix composites; joining processes; corrosion properties; powder processing

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Guest Editor
School of Mechanical and Aerospace Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore
Interests: metal additive manufacturing; thermal spray technology; metallic and composite coatings; micro- and nanostructure, and mechanical analysis
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

We would like to invite you to submit your original contributions to this Special Issue entitled “Advanced Cold Spraying Technology II”. Cold spray is a solid-state, powder-based advanced coating and additive manufacturing (AM) technology. Cold spray utilizes a high-pressure gas stream to accelerate micron-sized particles through a de-Laval nozzle to supersonic speed and impact substrates and generate dense and high-performance deposits. Cold spray has many unique attributes (e.g., high deposition rate, high adhesion strength, solid-state bonding at low temperatures) in contrast to popular fusion-based AM techniques, which has led it open up new opportunities in various niche industrial markets. After over thirty years of rapid development, cold spray technology has been successfully applied in surface repair, surface enhancement, functional coating and additive manufacturing in many fields including aerospace, weaponry, energy and power, electronic power, and medical equipment. The introduction of hybrid cold spray and the combination of cold spray with post-processing techniques resolve its many inherent drawbacks (e.g., lack of ductility, insufficient cohesion) and further promote the deployment of cold spray. The integration of artificial intelligence (AI) technology in cold spray helps to better realize toolpath and process optimization as well as process control for industrial production campaigns. Finally, the supersonic projectile behaviors of micron-sized particles in cold spray allows researchers to look into many fundamental material phenomena under extreme conditions, e.g., “size-effect” in mechanics, dynamic recrystallization, and phase transformation.

For this Special Issue, we welcome original research papers and review articles that provide state-of-the-art knowledge on advanced cold spray technology covering both academic and industrial aspects. The topics of interest for this Special Issue include, but are not limited to, the following:

  • Cold spray additive manufacturing;
  • Cold spray repair and restoration;
  • Cold spray fundamentals;
  • Cold spray powders;
  • Cold spray of novel and functional materials;
  • Hybrid cold spray and post-processing techniques;
  • Artificial intelligence in cold spray.

Dr. Wen Sun
Dr. Xin Chu
Dr. Adrian Wei Yee Tan
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

  • cold spray technology
  • additive manufacturing
  • powder processing
  • functional coatings
  • fundamental aspects
  • artificial intelligence

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Published Papers (2 papers)

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Research

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10 pages, 4386 KiB  
Article
Preparation of Dense TiAl Intermetallics by Cold Spraying the Precursor–Hot Isostatic Pressing
by Jiayan Ma, Xin Chu, Yingchun Xie, Jizhan Li, Min Liu and Jiwu Huang
Coatings 2024, 14(8), 999; https://doi.org/10.3390/coatings14080999 - 7 Aug 2024
Viewed by 858
Abstract
In this study, based on the element powder metallurgy method, a new hybrid method is proposed, which firstly prepares TiAl-based deposit precursors by the cold spraying of mixed Ti and Al powders and then combines this with hot isostatic pressing to achieve the [...] Read more.
In this study, based on the element powder metallurgy method, a new hybrid method is proposed, which firstly prepares TiAl-based deposit precursors by the cold spraying of mixed Ti and Al powders and then combines this with hot isostatic pressing to achieve the preparation of TiAl-based alloys. This paper explores the effects of deposition parameters on deposition efficiency and coating composition and investigates the evolution of the microstructure and properties of TiAl-based alloys by different hot isostatic pressing parameters. The results show that the prepared TiAl deposits are dense and free of microstructural defects; a high deposition efficiency (75%) and small deviation of coating composition (3 at %) are obtained under the spraying parameters of 5 MPa, 500 °C. The TiAl-based alloy with a dense microstructure can be prepared by controlling the parameters such as temperature, pressure, and heating rate of subsequent hot isostatic pressing. Full article
(This article belongs to the Special Issue Advanced Cold Spraying Technology II)
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Review

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39 pages, 7661 KiB  
Review
Remarkable Potential of Cold Spray in Overlay Restoration for Power Plants: Key Challenges, Recent Developments, and Future Prospects
by Nurfanizan Afandi, Savisha Mahalingam, Adrian Wei-Yee Tan, Abreeza Manap, Salmi Mohd Yunus, Wen Sun, Asiah Zulkipli, Xin Wei Chan, Adrian Ian-Xiang Chong, Nur Irmawati Om and Ayan Bhowmik
Coatings 2023, 13(12), 2059; https://doi.org/10.3390/coatings13122059 - 8 Dec 2023
Viewed by 1880
Abstract
Cold spray has become a prominent deposition technology for coating, repair, and restoration in many industries, such as the aerospace, automotive, and power generation industries. It also has the potential to be used as an alternative overlay restoration for power plant components as [...] Read more.
Cold spray has become a prominent deposition technology for coating, repair, and restoration in many industries, such as the aerospace, automotive, and power generation industries. It also has the potential to be used as an alternative overlay restoration for power plant components as it has minimal thermal distortion phase changes, as compared to conventional welding and thermal spray. This article aims to bridge the gap in the scientific literature by presenting a comprehensive review of cold spray in the context of power plant components. Firstly, this review examines the challenges of cold spray and subsequently elucidates effective mitigation strategies. Secondly, the review analyses the recent development of cold spray in the field of coating application. Moving forward, it investigates the integration of cold spray technology in repair applications, focusing on practical implementation and effectiveness. Finally, the review presents the overall impact of cold spray, its current outlook, and discusses future prospects. As such, the review will provide the community with a broad understanding of cold spray applications in the power plant sector. Full article
(This article belongs to the Special Issue Advanced Cold Spraying Technology II)
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