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Open AccessFeature PaperArticle

Modeling of Erosion Response of Cold-Sprayed In718-Ni Composite Coating Using Full Factorial Design

1
Department of Management and Production Engineering, Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129 Torino, Italy
2
Mechanical and Industrial Engineering Department, University of Rome “ROMA TRE”, Via Vasca Navale 79, 00146 Rome, Italy
3
Department of Mechanical and Manufacturing Engineering, Trinity College Dublin, The University of Dublin, Parsons Building, Dublin 2 D02 PN40, Ireland
*
Authors to whom correspondence should be addressed.
Coatings 2020, 10(4), 335; https://doi.org/10.3390/coatings10040335
Received: 9 March 2020 / Revised: 25 March 2020 / Accepted: 27 March 2020 / Published: 1 April 2020
(This article belongs to the Special Issue Cold Gas Spray Coatings: Fundamentals and Applications)
In this work, the cold-spray technique was used to deposit Inconel 718–nickel (1:1) composite coatings on stainless steel substrate. A general full factorial design was adopted to identify the statistically significant operating variables, i.e., impingement angle, erodent size, and feed rate on the coating erosion response. Erodent feed rate, impingement angle, and the interaction between impingement angle and erodent size were identified as the highly significant variables on the erosion rate. Then, a model correlating the identified variables with the erosion rate was derived. The best combination of control variables for minimum erosion loss with respect to erodent feed rate, erodent size, and impingement angle was 2 mg/min, 60 μm, and 90°, respectively. To analyze the erosion mechanism, the erodent samples were finally observed using Scanning Electron Microscope (SEM). View Full-Text
Keywords: cold spray; inconel 718; nickel; erosion; design of experiment; general full factorial design cold spray; inconel 718; nickel; erosion; design of experiment; general full factorial design
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MDPI and ACS Style

Verna, E.; Biagi, R.; Kazasidis, M.; Galetto, M.; Bemporad, E.; Lupoi, R. Modeling of Erosion Response of Cold-Sprayed In718-Ni Composite Coating Using Full Factorial Design. Coatings 2020, 10, 335.

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