RT info:eu-repo/semantics/article T1 Influence of Atmospheric Plasma Spray Parameters (APS) on the Mechanical Properties of Ni-Al Coatings on Aluminum Alloy Substrate A1 Lorenzo Bañuelos, Miriam A1 Díaz Portugal, Andrés A1 Rodríguez, David A1 Cuesta Segura, Isidoro Iván A1 Fernández, Adrián A1 Alegre Calderón, Jesús Manuel K1 Thermal spray K1 APS K1 Small punch test (SPT) K1 Ni-Al coating K1 Aluminum alloy K1 Ingeniería mecánica K1 Mechanical engineering K1 Electrotecnia K1 Electrical engineering K1 Ingeniería civil K1 Civil engineering K1 Resistencia de materiales K1 Strength of materials AB Thermal spray is one of the most widely used coating techniques to improve wear, surfacefatigue or corrosion properties. In the atmospheric plasma spray (APS) process, a powdered materialis melted by hydrogen and argon combustion and is propelled at high speed onto the target substrate.The high impact energy of the particles produces a dense and resistant coating layer. Mechanicaland surface properties of the obtained coating depend on various spraying parameters, such asgas flow, traverse speed and spraying distance, among others. In this research, the influence ofthese manufacturing parameters on the thickness, hardness and resistance of the coating obtainedfrom a Ni-Al alloy sprayed onto an aluminum alloy substrate was studied. In order to analyze theeffect of these parameters on the coating properties, an extensive experimental program was carriedout. A metallographic analysis, hardness and strength measurements were carried out using thesmall punch test to locally study the mechanical properties of the coating surface. The design ofexperiments and the response surface methodology facilitate the assessment of the optimal set ofspraying parameters. PB MDPI YR 2021 FD 2021-04 LK http://hdl.handle.net/10259/8405 UL http://hdl.handle.net/10259/8405 LA eng NO The authors gratefully acknowledge financial support from the Junta of Castile and Leon by funding Recognized Research Groups through grant no. BU033G18, starting from 2018. DS Repositorio Institucional de la Universidad de Burgos RD 15-may-2024