Abstract
A mechanism is proposed for the motion of liquid within the melt pool produced by the laser surface alloying (LSA) and laser cladding (LC). LSA and LC were conducted by direct injection of alloying powders into the melt pool. CW-CO2 laser was used for surface melting. The mechanism for stirring the liquid within the melt pool is considered. When active evaporation doesn't occur, a melt is mixed up due to the pressure of gas transporting the injected particles, the gravity and the surface tension. Estimation was done for motion rates of liquid within the melt pool. It was shown that when deep melt pool appeared, a multiple stirring of moving melt (300-350 cm/s) prevailed a plane parallel to the laser beam movement.
| Original language | English |
|---|---|
| Pages (from-to) | 305-314 |
| Number of pages | 10 |
| Journal | Lasers in Engineering |
| Volume | 10 |
| Issue number | 4 |
| State | Published - 2000 |
UN SDGs
This output contributes to the following UN Sustainable Development Goals (SDGs)
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SDG 9 Industry, Innovation, and Infrastructure
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics
- Industrial and Manufacturing Engineering
- Electrical and Electronic Engineering
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