The Effect of Barrel Configurations on the Porosity During HVAF Thermal Spray Ni-Based Amorphous Coatings: Numerical Simulation and Experiment

• Autorzy: Wu Nianchu , Li Tingting , Su Xiaotian

Identyfikatory

DOI

10.24425/amm.2024.151395

• Języki publikacji: EN

Abstrakty

EN

The relationship between barrel configurations and porosity of a Ni-based amorphous coating (AM) that is fabricated using a high-velocity air fuel (HVAF) process was revealed by both numerical and experimental methods. A computational fluid dynamics model was applied to investigate the gas-flow field and the behavior of in-flight particles with various barrel configurations. It is found that barrel length obviously affects the particle velocity and temperature while it has a slight influence on the particle velocity and temperature. The longer the barrel length (diameter), the higher the flame (particle) velocity and temperature. By analyzing both particle velocity and temperature, the optimal barrel configuration (4E) to achieve low-porosity coatings was predicted. These calculations were experimentally verified by the production of a low-porosity (2.09%) Ni-based AM that was fabricated by HVAF using the predicted optimal barrel configuration.

Słowa kluczowe

EN

Ni-based amorphous coating; porosity; HVAF; computational simulation; barrel configuration

• Wydawca: Institute of Metallurgy and Materials Science of Polish Academy of Sciences ; Committee of Materials Engineering and Metallurgy of Polish Academy of Sciences
• Czasopismo: Archives of Metallurgy and Materials
• Rocznik: 2024
• Tom: Vol. 69, iss. 4
• Strony: 1323--1332
• Opis fizyczny: Bibliogr. 25 poz., fot., rys., tab., wzory

Twórcy

autor

Wu Nianchu

• Liaoning Petrochemical University, School of Mechanical Engineering, Fushun, 113001, P.R. China

• https://orcid.org/0000-0001-6607-0763

autor

Li Tingting

• Liaoning Petrochemical University, School of Mechanical Engineering, Fushun, 113001, P.R. China

autor

Su Xiaotian

• Liaoning Petrochemical University, School of Mechanical Engineering, Fushun, 113001, P.R. China

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Uwagi

This work was supported by Educational Commission of Liaoning Province of China under Grant No. L2020021; Fushun Revitalization Talents Program under Grant No. FSYC202107011.