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← ScienceWhich outcome arises when a high-power laser rapidly heats a metal?
A)Ablation causes localized material removal✓
B)Annealing increases surface grain size
C)Tempering increases hardness uniformly
D)Quenching decreases crystalline structure
💡 Explanation
Ablation results since rapid heating causes a phase transition from solid to plasma. The metal is vaporized at the surface because the laser's energy overwhelms conductive heat transfer, therefore ablation occurs rather than slower thermal processes.
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