Cold gas dynamic spray technology: A comprehensive review of processing conditions for various technological developments till to date

Raoelison, Rija Nirina; Xie, Yingchun; Sapanathan, Thaneshan; Planche, Marie-Pierre; Kromer, Robin; Costil, S.; Langlade, C.

doi:10.1016/j.addma.2017.07.001

Cited by 107 publications

(60 citation statements)

References 203 publications

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“…The particle velocities as a function of pressure and temperature are presented in Figure 4. When pressure and temperature increase, particle velocity increases as stated in many studies [12,13,25,26,32]. In the present study, temperature has a higher influence on particle Figure 3.…”

Section: Particle Velocity Measurementssupporting

confidence: 69%

Cold-Sprayed Al6061 Coatings: Online Spray Monitoring and Influence of Process Parameters on Coating Properties

Koivuluoto

Larjo²,

Marini

et al. 2020

Coatings

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Process optimization and quality control are important issues in cold spraying and coating development. Because the cold spray processing is based on high kinetic energy by high particle velocities, online spray monitoring of particle inflight properties can be used as an assisting process tool. Particle velocities, their positions in the spray jet, and particle size measurements give valuable information about spraying conditions. This, in turn, improves reproducibility and reliability of coating production. This study focuses on cold spraying of Al6061 material and the connections between particle inflight properties and coating characteristics such as structures and mechanical properties. Furthermore, novel 2D velocity scan maps done with the HW CS2 online spray monitoring system are presented as an advantageous powder and spray condition controlling tool. Cold spray processing conditions were similar using different process parameters, confirmed with the online spray monitoring prior to coating production. Higher particle velocities led to higher particle deformation and thus, higher coating quality, denser structures, and improved adhesions. Also, deposition efficiency increased significantly by using higher particle velocities.

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Section: Particle Velocity Measurementssupporting

confidence: 69%

Cold-Sprayed Al6061 Coatings: Online Spray Monitoring and Influence of Process Parameters on Coating Properties

Koivuluoto

Larjo²,

Marini

et al. 2020

Coatings

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“…Materials 2020, 13, x FOR PEER REVIEW Cold spray (CS) process was originally developed as a solid-state coating method for improving surface properties [95]. In CS process (known as dynamic gas cold spray) a supersonic gas jet (normally velocity of 300 to 1200 m/s) is used to accelerate powdered materials (diameter of 1-50 μm) through a de-Laval or similar converging/diverging nozzle and spray them onto a substrate.…”

Section: Cold Spray Am (Csam)mentioning

confidence: 99%

Beamless Metal Additive Manufacturing

2020

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The propensity to manufacture functional and geometrically sophisticated parts from a wide range of metals provides the metal additive manufacturing (AM) processes superior advantages over traditional methods. The field of metal AM is currently dominated by beam-based technologies such as selective laser sintering (SLM) or electron beam melting (EBM) which have some limitations such as high production cost, residual stress and anisotropic mechanical properties induced by melting of metal powders followed by rapid solidification. So, there exist a significant gap between industrial production requirements and the qualities offered by well-established beam-based AM technologies. Therefore, beamless metal AM techniques (known as non-beam metal AM) have gained increasing attention in recent years as they have been found to be able to fill the gap and bring new possibilities. There exist a number of beamless processes with distinctively various characteristics that are either under development or already available on the market. Since this is a very promising field and there is currently no high-quality review on this topic yet, this paper aims to review the key beamless processes and their latest developments.

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“…Major innovative development began In the 1950s by Rochevill, using a gas flow at a velocity higher than those obtained with the existing methods at that time. The flow of gas through a nozzle called the De Laval Nozzle produces a uniform thin coating [1][2][3].…”

Section: Introductionmentioning

confidence: 99%

A comparative review on cold gas dynamic spraying processes and technologies

Oyinbo

Jen

2019

Manufacturing Rev.

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Cold gas dynamic spraying (CGDS) is a relatively new technology of cold spraying techniques that uses converging-diverging (De Laval) nozzle at a supersonic velocity to accelerate different solid powders towards a substrate where it plastically deforms on the substrate. This deformation results in adhesion to the surface. Several materials with viable deposition capability have been processed through cold spraying, including metals, ceramics, composite materials, and polymers, thereby creating a wide range of opportunities towards harnessing various properties. CGDS is one of the innovative cold spraying processes with fast-growing scientific interests and industrial applications in the field of aerospace, automotive and biotechnology, over the past years. Cold gas spraying with a wide range of materials offers corrosion protection and results in increases in mechanical durability and wear resistance. It creates components with different thermal and electrical conductivities than that substrates would yield, or produces coatings on the substrate components as thermal insulators and high fatigue-strength coatings, and for clearance control, restoration and repairing, or prostheses with improved wear, and produces components with attractive appearances. This review extensively exploits the latest developments in the experimental analysis of CGDS processes. Cold gas dynamic spraying system, coating formation and deposit development, description of process parameter and principles, are summarized. Industrial applications and prospectives of CGDS in future research are also commented.

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Cold gas dynamic spray technology: A comprehensive review of processing conditions for various technological developments till to date

Cited by 107 publications

References 203 publications

Cold-Sprayed Al6061 Coatings: Online Spray Monitoring and Influence of Process Parameters on Coating Properties

Cold-Sprayed Al6061 Coatings: Online Spray Monitoring and Influence of Process Parameters on Coating Properties

Beamless Metal Additive Manufacturing

A comparative review on cold gas dynamic spraying processes and technologies

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