Abstract
Fluid flow behaviour during ultrasonic gas atomization was studied. The gas velocity was determined by total pressure measurement and Schlieren photography, and the metal powder particle velocity was calculated. The gas velocity reaches about 1700 m s −1 (Mach. 1.7) in the supersonic flow region for helium gas at a backing pressure of 6.9 M Pa. An Al5wt.%Mn2.5wt.%Cr powder particle 15 μm in diameter is accelerated to a maximum velocity of about 1200 m s −1, while a particle 150 μm in diameter of the same alloy reaches a maximum velocity of about 400 m s −1. Solidification studies were carried out by collecting powder particles at different flight distances from the atomization nozzle. A comparison between a theoretical solidification model and the experimental result shows good agreement.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
