Open AccessTechnological and structural analysis of Al2O3 40TiO2 coating deposited on a shaft sleeve of hydraulic pump
Author(s) -
Cornelia Paleu,
Bogdan Istrate,
Viorel Paleu,
Corneliu Munteanu
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/724/1/012063
Subject(s) - materials science , coating , scanning electron microscope , ceramic , microstructure , corrosion , surface engineering , thermal spraying , deposition (geology) , metallurgy , layer (electronics) , energy dispersive x ray spectroscopy , composite material , impeller , thermal shock , mechanical engineering , engineering , paleontology , sediment , biology
In the last decades, mechanical engineering applications have extensive use in many subdomains. Many researchers have used Al2O3 40TiO2 (AMDRY6250) type coatings that have a wide use of plasma jets, significantly improving their wear, corrosion resistance and heat shock properties. It is especially used for hydraulic components such as pumps, impellers, and blowers. The performance of Al2O3 40TiO2 layer is conditioned by a number of technological parameters of deposition, powder granulation and deposition incidence angle. In the present study, the authors will make sequential depositions of Al 2 O 3 40TiO 2 on the surface of a material coming from a hydraulic system. Microstructural analysis of optical microscopy, scanning electron microscopy (SEM), and energy dispersive spectroscopy (EDAX) are performed both in the surface of the deposited material and in the section of the coated specimens, identifying the microstructure and the component phases. The authors highlighted the emergence of the “splat” type of formations that are specific to the ceramic coatings in the deposited layers and a good adhesion to the base material authorizing the use of this powder in the reconditioning of the hydraulic systems.