Please use this identifier to cite or link to this item:
Title: Alumina Reinforcement of Inconel 625 Coatings by Cold Gas Spraying
Author: Dosta Parras, Sergi
Cinca i Luis, Núria
Silvello, A. (Alessio)
García Cano, Irene
Keywords: Revestiments
Corrosió i anticorrosius
Corrosion and anti-corrosives
Issue Date: 18-Sep-2020
Publisher: MDPI
Abstract: Reinforced Inconel 625 coatings have been successfully deposited by means of cold gas spray (CGS). Alumina has been simultaneously sprayed achieving a homogeneous distribution along the deposit with good cohesion between particles. The aim of this study was to investigate whether ceramic reinforcement could improve the mechanical and tribological properties of Inconel625 cold-sprayed coatings, while keeping the oxidation and corrosion resistance capacity. Furthermore, alumina particles were found to improve the spraying feasibility, by avoiding WC nozzle clogging during the process. A proper optimization of the spraying conditions was carried out in order to obtain the lowest possible porosity and best embedment of the alumina. Then, the mechanical and tribological properties as well as corrosion and oxidation behavior were characterized. Alumina acts as a reinforcement, improving the effects of abrasive and sliding wear. Regarding the oxidation and corrosion behavior, the coatings exhibit reasonably good oxidation resistance at temperatures up to 900 °C. The electrochemical corrosion performance in NaCl solution showed potentially lower noble corrosion values and corrosion current densities than bulk Inconel.
Note: Reproducció del document publicat a:
It is part of: Metals, 2020, vol. 10, num. 9, p. 1263
Related resource:
ISSN: 2075-4701
Appears in Collections:Articles publicats en revistes (Ciència dels Materials i Química Física)

Files in This Item:
File Description SizeFormat 
704876.pdf7.2 MBAdobe PDFView/Open

This item is licensed under a Creative Commons License Creative Commons