What does this research mean for the field?

During nanosecond pulsed laser irradiation on aluminum, increased laser fluence advances and prolongs laser-induced phase explosion, increasing ablation penetration depth, while the resulting shock wave front velocity decays rapidly far from the surface. Novelty: ClaimNovelty.INCREMENTAL. Consensus alignment: ConsensusAlignment.NEUTRAL.

What question did this study set out to answer?

To investigate the physical mechanisms of laser-induced phase explosion and characterize the propagation velocity of shock wave fronts generated in ambient air by pulsed laser ablation of aluminum.

September 2, 2026International Journal of Damage Mechanics

Velocity characteristics of shock wave front in ambient air induced by nanosecond pulsed laser irradiation on aluminum

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Authors

CLChangli LiChangchun University of Science and Technology KHKehao HaoChangchun University of Science and Technology YWYaode WangChangchun University of Science and Technology

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Implication

Numerical and experimental study reveals phase explosion dynamics and shock wave front decay during pulsed laser irradiation on aluminum, suggesting ways to optimize laser processing efficiency.

Key Points

To investigate the physical mechanisms of laser-induced phase explosion and characterize the propagation velocity of shock wave fronts generated in ambient air by pulsed laser ablation of aluminum.
Developed a finite element numerical model coupling temperature and velocity fields to simulate liquid-phase superheating, homogeneous nucleation, and phase explosion.
Employed a multiwavelength high-speed shadow imaging system to capture ambient air shock wave front formation and measure propagation velocity under short pulsed laser irradiation.
Target surface temperature briefly stabilized at a peak of ~6350 K (0.95Tc) before declining rapidly due to strong convection driven by explosion products.
Increasing laser fluence advanced the onset of phase explosion, extended its duration, and shifted phase explosion deeper inside the target to increase ablation penetration depth.
Ambient air shock wave front propagation velocity decayed rapidly with increasing distance from the aluminum surface.

Cite This Study

Li et al. (2026) studied this question.

synapsesocial.com/papers/6a97e29ec562ede874ec6ce1 https://doi.org/10.1177/10567895261478700

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Implication

Numerical and experimental study reveals phase explosion dynamics and shock wave front decay during pulsed laser irradiation on aluminum, suggesting ways to optimize laser processing efficiency.

Velocity characteristics of shock wave front in ambient air induced by nanosecond pulsed laser irradiation on aluminum

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Member takes

Implication

Key Points

Cite This Study

Velocity characteristics of shock wave front in ambient air induced by nanosecond pulsed laser irradiation on aluminum

Discussion

Member takes

Implication

Key Points

Cite This Study

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