Sep 2026· Archives of Foundry Engineering· 0 citations· 16 references
Abstract
The paper presents the results of material properties investigations (nanoindentation test) of an Al2O3-TiO2 coating with a NiAl interlayer, deposited by the APS (Atmospheric Plasma Spraying) method on an AlSi7Mg alloy casting. The scope of research included the analysis of the microstructure and chemical composition of the substrate material, powders, and coatings, substrate surface preparation, coating fabrication, and the analysis of nanoindentation test results, determined according to the Oliver-Pharr method. The analysis of the nanoindentation test results indicates significantly higher values of material properties, including hardness and elastic modulus, for the Al2O3-TiO2 coating and the NiAl interlayer compared to the AlSi7Mg alloy substrate, with a gradual increase in properties observed from the substrate toward the auter ceramic layer. The obtained results confirm the possibility of using the Al2O3-TiO2 coating as TBC – Thermal Barrier Coatings to improve the operational durability of internal combustion engine components made of Al-Si alloy.
The paper presents the results of nanoindentation testing of AZ91 magnesium alloy and a WCCoCr coating deposited by Air Plasma Spraying (APS). In order to determine the material properties of individual components of the microstructure of the AZ91 alloy and the WCCoCr coating, i.e., Vickers hardness – HVIT, indentation...
S. Olszewska, M. Mróz· Archives of Foundry Engineer...· 0 citations
This study investigates the effect of the mass ratio of aluminum to aluminum oxide on the structure and properties of Al–Al2O3 composite coatings deposited by cold spray deposition onto AISI 316L stainless steel substrates. Powder mixtures containing 70, 35, 30, and 20 wt.% Al2O3 were used to form the coatings, and the...
B. Rakhadilov, A. Mural, D. Kakimzhanov et al.· Coatings· 0 citations
To enhance the surface hardness and wear resistance of TC4 titanium alloy, this paper systematically investigates the effects of voltage, time, and nano-ZrO2 particle concentration on the microstructure, phase composition, hardness, and wear resistance of ceramic coatings prepared by micro-arc oxidation (MAO) technolog...
This study investigates the microstructural, tribological, and corrosion properties of electrodeposited Zn-Co nanocomposite coatings reinforced with graphene and TiO2 nanoparticles on Selective Laser-Melted (SLM) Ti6Al4V alloy. Systematic characterization using XRD, SEM, and Raman spectroscopy revealed that the incorpo...
Al-Cu-Fe quasicrystalline coatings were deposited onto AISI 321 stainless steel substrates using the high-velocity oxygen fuel (HVOF) spraying method at oxygen pressures of 3.0 and 3.5 bar. The effect of oxygen pressure on the phase composition, microstructure, porosity, corrosion behavior, and thermal stability of the...
D. Baltabayeva, S. Kurbanbekov, A. Tussupzhanov et al.· Central Asian Transactions o...· 0 citations
This study aims to synthesize (Cu-Al-Ni-Fe) alloy composite coatings reinforced with alumina (Al2O3) particles at weight fractions of 0 wt%, 3 wt %, and 6 wt%, deposited on AISI 304L stainless steel substrates using the flame thermal spraying technique. The coatings were evaluated by measuring surface roughness and adh...
Haneen S.Abdulwahid, Rafea A.Munef· International Journal of Mul...· 0 citations
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