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Crystal growth in the direction of the temperature gradient during laser etching

Author name: 
Prveen Bidare
Affiliation: 
Heriot-watt University
Description: 
The mechanism was observed during laser etching of stainless steel material with 60W CW fiber Laser. This picture shows crystal growth and liquid metal surface tension.
Equipment used: 
Research Stereo Microscope from Visual Inspection Technology - WLD 20

Crystal growth in the direction of the temperature gradient during laser etching