Cold Gas Spray Inner Diameter Coatings and Their Properties

Due to recent developments, cold gas spraying technology can now be used to create inner diameter coatings for cylinder inner diameters > 70 mm. The present investigations focus on the process optimization and the specific properties of cold gas spray inner diameter coatings created with three di...

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Veröffentlicht in:Journal of thermal spray technology 2022, Vol.31 (5), p.1712-1724
Hauptverfasser: Meeß, Joachim, Anasenzl, Manuel, Ossenbrink, Ralf, Michailov, Vesselin, Singh, Reeti, Kondas, Jan
Format: Artikel
Sprache:eng
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Zusammenfassung:Due to recent developments, cold gas spraying technology can now be used to create inner diameter coatings for cylinder inner diameters > 70 mm. The present investigations focus on the process optimization and the specific properties of cold gas spray inner diameter coatings created with three different alloy steel powder variants. The cold gas spray coating properties were compared with the corresponding properties of coatings created with twin wire arc technology. The particle velocities and deposition efficiencies were measured with the aim of optimizing the process parameters. The most suitable process parameters were used to analyze the microstructure of the deposited coating in terms of porosity and interface quality. Furthermore, the hardness and adhesion strength properties of the coatings were measured. In addition, the different liners were honed, and the achievable surface roughness of each was determined. Finally, wear resistance was evaluated using ball-on-disk testing. The results reveal that with the maximum process parameters, the cold gas spray coating properties are comparable to the twin wire arc coating properties. Further investigations are necessary to determine whether cold gas spraying is a feasible alternative to the current series production process for cylinder surface coatings.
ISSN:1059-9630
1544-1016
DOI:10.1007/s11666-022-01365-5