2026-04-29T05:53:47Zhttps://riubu.ubu.es/oai/request

oai:riubu.ubu.es:10259/84052024-05-14T10:31:50Zcom_10259_4201com_10259_5086com_10259_2604col_10259_4505

Influence of Atmospheric Plasma Spray Parameters (APS) on the Mechanical Properties of Ni-Al Coatings on Aluminum Alloy Substrate Lorenzo Bañuelos, Miriam Díaz Portugal, Andrés Rodríguez, David Cuesta Segura, Isidoro Iván Fernández, Adrián Alegre Calderón, Jesús Manuel Thermal spray APS Small punch test (SPT) Ni-Al coating Aluminum alloy Ingeniería mecánica Electrotecnia Ingeniería civil Resistencia de materiales Mechanical engineering Electrical engineering Civil engineering Strength of materials Thermal spray is one of the most widely used coating techniques to improve wear, surface fatigue or corrosion properties. In the atmospheric plasma spray (APS) process, a powdered material is 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. Mechanical and surface properties of the obtained coating depend on various spraying parameters, such as gas flow, traverse speed and spraying distance, among others. In this research, the influence of these manufacturing parameters on the thickness, hardness and resistance of the coating obtained from a Ni-Al alloy sprayed onto an aluminum alloy substrate was studied. In order to analyze the effect of these parameters on the coating properties, an extensive experimental program was carried out. A metallographic analysis, hardness and strength measurements were carried out using the small punch test to locally study the mechanical properties of the coating surface. The design of experiments and the response surface methodology facilitate the assessment of the optimal set of spraying parameters. 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. 2024-01-19T11:49:54Z 2024-01-19T11:49:54Z 2021-04 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://hdl.handle.net/10259/8405 10.3390/met11040612 2075-4701 eng Metals. 2021, V. 11, n. 4, 612 https://doi.org/10.3390/met11040612 Atribución 4.0 Internacional http://creativecommons.org/licenses/by/4.0/ info:eu-repo/semantics/openAccess application/pdf MDPI