The Influence of the Powder Characteristics on 316L Stainless Steel Coatings Sprayed by Cold Gas Spray
Thermal Spray Center CPT, University of Barcelona, Martí i Franqués 1, 7a Planta, 08028 Barcelona, Spain
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Author to whom correspondence should be addressed.
Academic Editor: Cecilia Bartuli
Coatings 2021, 11(2), 168; https://doi.org/10.3390/coatings11020168
Received: 11 December 2020
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Revised: 22 January 2021
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Accepted: 27 January 2021
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Published: 31 January 2021
(This article belongs to the Section Surface Characterization, Deposition and Modification)
Thermally sprayed 316L stainless steel coatings are commonly used on metallic structures due to their corrosion and wear resistance when compared to carbon steel. Cold Gas Spray (CGS) is a convenient thermal spray process to deposit 316L coatings, producing thick and very dense coatings, with almost no deleterious changes on the feedstock properties to the coating condition. The powder characteristics have influence on the microstructure of the coating, such as porosity and oxide contents, which alter its corrosion and wear behavior. CGS is an efficient technique to reduce the problems associated with material melting commonly found in other conventional thermal spray methods. In this work, different 316L powders, produced by different manufacturers, were deposited by CGS, applying the same equipment and parameters, with the objective to evaluate the relation between the powders’ characteristics and coating properties. Their microstructure, adherence, hardness, as well as the performance on corrosion and wear testing were evaluated. The water atomized powders presented in general better results than gas atomized powders.
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Keywords:
316L; cold gas spray; powder shape; corrosion; wear
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MDPI and ACS Style
Vaz, R.F.; Silvello, A.; Sanchez, J.; Albaladejo, V.; Cano, I.G. The Influence of the Powder Characteristics on 316L Stainless Steel Coatings Sprayed by Cold Gas Spray. Coatings 2021, 11, 168. https://doi.org/10.3390/coatings11020168
AMA Style
Vaz RF, Silvello A, Sanchez J, Albaladejo V, Cano IG. The Influence of the Powder Characteristics on 316L Stainless Steel Coatings Sprayed by Cold Gas Spray. Coatings. 2021; 11(2):168. https://doi.org/10.3390/coatings11020168
Chicago/Turabian StyleVaz, Rodolpho F., Alessio Silvello, Javier Sanchez, Vicente Albaladejo, and Irene G. Cano. 2021. "The Influence of the Powder Characteristics on 316L Stainless Steel Coatings Sprayed by Cold Gas Spray" Coatings 11, no. 2: 168. https://doi.org/10.3390/coatings11020168
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