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Cold-Sprayed Al6061 coatings: Online spray monitoring and influence of process parameters on coating properties

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Cold-Sprayed Al6061 coatings : Online spray monitoring and influence of process parameters on coating properties. / Koivuluoto, Heli; Larjo, Jussi; Marini, Danilo; Pulci, Giovanni; Marra, Francesco.

In: Coatings, Vol. 10, No. 4, 348, 2020.

Research output: Contribution to journalArticleScientificpeer-review

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Koivuluoto, Heli ; Larjo, Jussi ; Marini, Danilo ; Pulci, Giovanni ; Marra, Francesco. / Cold-Sprayed Al6061 coatings : Online spray monitoring and influence of process parameters on coating properties. In: Coatings. 2020 ; Vol. 10, No. 4.

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@article{bf9be0fb82de41f6a086c805bb92d4e3,
title = "Cold-Sprayed Al6061 coatings: Online spray monitoring and influence of process parameters on coating properties",
abstract = "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 theHWCS2 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.",
keywords = "Al6061, Aluminum, Coatings, Cold spray, Diagnostics, Online monitoring, Process parameters",
author = "Heli Koivuluoto and Jussi Larjo and Danilo Marini and Giovanni Pulci and Francesco Marra",
year = "2020",
doi = "10.3390/coatings10040348",
language = "English",
volume = "10",
journal = "Coatings",
issn = "2079-6412",
publisher = "MDPI",
number = "4",

}

RIS (suitable for import to EndNote) - Download

TY - JOUR

T1 - Cold-Sprayed Al6061 coatings

T2 - Online spray monitoring and influence of process parameters on coating properties

AU - Koivuluoto, Heli

AU - Larjo, Jussi

AU - Marini, Danilo

AU - Pulci, Giovanni

AU - Marra, Francesco

PY - 2020

Y1 - 2020

N2 - 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 theHWCS2 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.

AB - 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 theHWCS2 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.

KW - Al6061

KW - Aluminum

KW - Coatings

KW - Cold spray

KW - Diagnostics

KW - Online monitoring

KW - Process parameters

U2 - 10.3390/coatings10040348

DO - 10.3390/coatings10040348

M3 - Article

VL - 10

JO - Coatings

JF - Coatings

SN - 2079-6412

IS - 4

M1 - 348

ER -