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Volume 11
Issue 2
10.3390/coatings11020168
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Article

The Influence of the Powder Characteristics on 316L Stainless Steel Coatings Sprayed by Cold Gas Spray

by
Rodolpho F. Vaz
*,
Alessio Silvello
,
Javier Sanchez
,
Vicente Albaladejo
and
Irene García Cano
Thermal Spray Center CPT, University of Barcelona, Martí i Franqués 1, 7a Planta, 08028 Barcelona, Spain
*
Author to whom correspondence should be addressed.
Coatings 2021, 11(2), 168; https://doi.org/10.3390/coatings11020168
Submission received: 11 December 2020 / Revised: 22 January 2021 / Accepted: 27 January 2021 / Published: 31 January 2021
(This article belongs to the Section Surface Characterization, Deposition and Modification)
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Abstract

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.
Keywords: 316L; cold gas spray; powder shape; corrosion; wear 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 Style

Vaz, Rodolpho F., Alessio Silvello, Javier Sanchez, Vicente Albaladejo, and Irene García 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

APA Style

Vaz, R. F., Silvello, A., Sanchez, J., Albaladejo, V., & Cano, I. G. (2021). The Influence of the Powder Characteristics on 316L Stainless Steel Coatings Sprayed by Cold Gas Spray. Coatings, 11(2), 168. https://doi.org/10.3390/coatings11020168

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