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Which 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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