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← ScienceWhich outcome occurs when a high-power pulsed laser ablates steel?
A)Plasma formation and material ejection✓
B)Increased martensite formation throughout metal
C)Uniform, volumetric heating throughout the block
D)Decreased overall heat affected zone (HAZ)
💡 Explanation
Plasma formation and material ejection occur due to rapid heating and ionization; this is caused by inverse Bremsstrahlung absorption. An ablation process involves rapid surface vaporization, producing plasma, therefore material is ejected, rather than deeper martensitic transformation or bulk heating effects.
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