The splat boundary coalescence fraction of electric arc spray formed low carbon steel (Fe-0.06%C steel)
- The splat boundary coalescence fraction of electric arc spray formed low carbon steel (Fe-0.06%C steel)
- 석현광; P.S. Grant; 이재철; 이호인
- electric arc spray forming; microscopic model; thermal condition; splat boundary coalescence; Fe-0.06%C steel
- Issue Date
- 대한금속 . 재료학회지; Journal of the Korean Institute of Metals and Materials
- VOL 38, NO 8, 1084-1092
- During the electric arc spray forming(EASF) including Osprey forming, thermal spray forming and plasma spray forming, critical is the thermal condition of the deposit, especially at the deposition domain (footprint), where droplets impinge on a substrate or surface to form a deposit. Many experimentals show that the microstructure of the deposit depends on the thermal conditions at the footprint. In thin paper, microscopic model was presented to describe the splat boundary coalescence at the footprint, which estimates the fractional quantity of splat boundary coalescence at the footprint under the assumptions of average droplet size impinging on the deposit surface. This model was adopted to describe the microstructural evolution of the Fe-0.06%C steel ring EAS formed with a law substrate rotation velocity. The contents of splat boundary coalescence of the deposit, EAS formed on the substrate with a high rotation velocity or on the stationary substrate, were also estimated using the quantitative model.
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