@inproceedings{51e210ab04d4489eb2281bd2375ec28c,
title = "Simulation of vaporization in low fluence nanosecond laser ablation of aluminum alloy",
abstract = "This paper presents a multi-phase flow model for the nanosecond laser ablation of aluminum alloy at a low fluence based on finite volume method, considering gravity, recoil pressure, buoyancy and surface tension to describe vaporization. Actual morphology of ablation crater was measured by a laser scanning confocal microscope to verify the model. Results show that vaporization is the main ablation mechanism for 100ns laser ablation at low fluences, and the peak temperature is only 50\% of critical temperature. Both the experimental and calculated crater have a wall-like bulge around the rim, as a result of impact of recoil pressure and resolidification of pushed liquid metal. The calculated depth and diameter of crater are in good agreement with the corresponding experimental measurement indicating the feasibility of the model.",
keywords = "Ablation crater, Aluminum alloy, Fiber laser, Laser ablation, Vaporization",
author = "Chaoqun Song and Shiyun Dong and Shixing Yan and Enzhong Li and Binshi Xu and Peng He",
note = "Publisher Copyright: {\textcopyright} 2018 SPIE.; Young Scientists Forum 2017 ; Conference date: 24-11-2017 Through 26-11-2017",
year = "2018",
doi = "10.1117/12.2317638",
language = "英语",
series = "Proceedings of SPIE - The International Society for Optical Engineering",
publisher = "SPIE",
editor = "Kunchi Peng and Jianwei Pan and Junhao Chu",
booktitle = "Young Scientists Forum 2017",
address = "美国",
}