Influence of Flow Swirling and Exit Shape of Barrel Nozzle on Cold Spraying |
| |
Authors: | S V Klinkov V F Kosarev V N Zaikovskii |
| |
Affiliation: | (1) Khristianovich Institute of Theoretical and Applied Mechanics, Siberian Branch of Russian Academy of Sciences (ITAM SB RAS), Novosibirsk, Russia; |
| |
Abstract: | Traditionally, in cold spray two-phase supersonic jet formed with the help of converging-diverging nozzle are used. In this
study an alternative design of cold spray nozzle is proposed in which a high velocity two-phase flow is created using an intense
flow swirling in a constant section barrel (cylinder) with double-edged bevel exit. As a result, a high velocity gas-powder
mixture jet is produced presenting a fan-shaped jet spreading at a large angle in one plane and approximately of equal size
along the normal to this plane. This results in greater angles of particle deposition and, hence, in larger deposition widths,
with the maximum width of deposition spot reaching 25 barrel diameters. The performed experimental study proves the new nozzle
design to be appropriate for deposition of cold-sprayed coatings. |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|