Liquid atomization into gas–solid fluidized beds—A review spanning the micro- to macro-scale

Khani, Zahra; Patience, Gregory S.

doi:10.1016/j.powtec.2023.119242

Cited by 1 publication

(1 citation statement)

References 178 publications

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“…Therefore, the alloy liquid is more easily broken into fine metal droplets over a given period, resulting in a reduction in the particle size of the alloy powder. Additionally, with the increase in the velocity V g of the atomization gas, the Weber number W e also increases, causing the fragmentation of the metal melt to transition from bag fragmentation to shear fragmentation [ 21 ]. As a result, the atomization and fragmentation effect on the alloy melt becomes more pronounced, leading to an increase in the fine powder content in the atomized alloy powder.…”

Section: Resultsmentioning

confidence: 99%

Study on Flowability Regulation of Vacuum Gas-Atomized Fe-Cr-Ni-W-B Spherical Powder

Yu,

Li,

Liu

2024

Materials

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High-quality Fe-Cr-Ni-W-B spherical powder is crucial for the powder metallurgy preparation of high-strength and tough Fe-Cr-Ni-W-B alloys. In this study, the controlled preparation of high-quality Fe-Cr-Ni-W-B spherical powder was achieved using the vacuum gas atomization method. The effects and mechanisms of atomization gas pressure, the melt nozzle inner diameter, and heat treatment temperature on the microstructure and flowability of Fe-Cr-Ni-W-B spherical powder were systematically investigated. By optimizing process parameters, spherical Fe-Cr-Ni-W-B powder with a sphericity of 95.1% and a flowability of 15.88 s/50 g was obtained, laying the foundation for the powder metallurgy preparation of high-strength and tough Fe-Cr-Ni-W-B alloys.

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Section: Resultsmentioning

confidence: 99%