TY - JOUR
T1 - Optimization of the Si3N4 coating formation through plasma spraying on Inconel 738
AU - Najafizadeh, Mojtaba
AU - Ghasempour-Mouziraji, Mehran
AU - Shahrani, Sajad
AU - Bozorg, Mansoor
AU - Goulas, Constantinos
AU - Hosseinzadeh, Morteza
AU - Cavaliere, Pasquale
AU - Perrone, Angelo
AU - Perrone, Serena
N1 - Publisher Copyright:
© 2023 Institute of Materials, Minerals and Mining and Informa UK Limited, trading as Taylor & Francis Group.
PY - 2023/10/2
Y1 - 2023/10/2
N2 - In the present study, the deposition of silicon nitride (Si3N4) coating on Inconel 738 through plasma spray has been investigated. For producing the Si3N4 coating, different times (6, 8 and 10 s), different distances of the plasma spray torch from the substrate (30, 35 and 40 mm) and different currents for plasma spraying (3000, 3250 and 3500 A) were employed. For the characterisation of the coatings, SEM (thickness), XRD, micro-hardness and adhesion of the samples were measured. The coatings’ surface morphology was investigated through SEM. Based on the experimental results, by using a spraying time of 10 s, a distance of the torch of 40 mm and a current of 3500 A, high microhardness and adhesion of the coatings are obtained. On the other hand, the thickness of the coating increased by reducing the distance and increasing spray time and current.
AB - In the present study, the deposition of silicon nitride (Si3N4) coating on Inconel 738 through plasma spray has been investigated. For producing the Si3N4 coating, different times (6, 8 and 10 s), different distances of the plasma spray torch from the substrate (30, 35 and 40 mm) and different currents for plasma spraying (3000, 3250 and 3500 A) were employed. For the characterisation of the coatings, SEM (thickness), XRD, micro-hardness and adhesion of the samples were measured. The coatings’ surface morphology was investigated through SEM. Based on the experimental results, by using a spraying time of 10 s, a distance of the torch of 40 mm and a current of 3500 A, high microhardness and adhesion of the coatings are obtained. On the other hand, the thickness of the coating increased by reducing the distance and increasing spray time and current.
KW - coatings
KW - hardness
KW - Inconel 738
KW - multi-objective optimisation
KW - Plasma spray coating
KW - response surface methodology
KW - SiN coating
KW - superalloys
KW - 2024 OA procedure
UR - http://www.scopus.com/inward/record.url?scp=85168124729&partnerID=8YFLogxK
U2 - 10.1080/17515831.2023.2245999
DO - 10.1080/17515831.2023.2245999
M3 - Comment/Letter to the editor
AN - SCOPUS:85168124729
SN - 1751-5831
VL - 17
SP - 338
EP - 351
JO - Tribology - Materials, Surfaces and Interfaces
JF - Tribology - Materials, Surfaces and Interfaces
IS - 4
ER -