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← ScienceWhich consequence results when pulsed laser surface treatment induces overheating?
A)Material phase explosion and ablation.✓
B)Marangoni convection cells stabilize.
C)Subsurface ductile crack propagation.
D)Recrystallization with finer grain growth.
💡 Explanation
Overheating causes material to vaporize rapidly, resulting in phase explosion and subsequent ablation, because the thermal energy exceeds the material's capacity. This removal occurs rather than stable convection, because temperatures peak too quickly; therefore, explosive ablation occurs.
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