Studies on High temperature erosion behavior of NiCrBSi-Flyash-MoTi sprayed composite coating
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Date
2024
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Publisher
NHCE
Abstract
The study investigates the high-temperature erosion behavior of NiCrBSi-Flyash-MoTi sprayed composite coatings, focusing on their potential applications in industrial environments where materials are subject to extreme thermal and erosive conditions. The composite coatings were deposited using thermal spraying techniques to create a uniform and adherent layer on the substrate.
To evaluate the performance of the coatings, a series of erosion tests were conducted at varying temperatures, simulating real-world operational conditions The mass loss of the coatings was measured to assess their resistance to erosive wear Scanning electron microscopy (SEM) and energy-dispersive X-ray spectroscopy (EDX) analyses were performed to examine the surface morphology and elemental composition of the eroded surfaces
The results indicate that the NiCrBSi-Flyash-MoTi composite coating exhibits superior erosion resistance at high temperatures compared to conventional coatings. The inclusion of fly ash and MoTi particles within the NiCrBSi matrix contributes to enhanced hardness and toughness, thereby reducing material loss during erosion. The coatings also displayed excellent thermal stability, maintaining their integrity and protective properties under prolonged exposure to high temperatures.
These findings suggest that NiCrBSi-Flyash-MoTi composite coatings could significantly insperve the lifespan and performance of components in high-temperature erosive environments, such as those found in power plants, aerospace, and other heavy industries. Further research could explore optimizing the composite formulation and deposition parameters to maximize the coatings' protective capabilities.