Impact Treatment of the Surface of Oxygen-Free Copper with Nanosecond Laser Pulses in Water

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发表日期：

2024年9月1日

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V. Yu. Zheleznov,
T. V. Malinskiy,
S. I. Mikolutskiy,
V. E. Rogalin,
Yu. V. Khomich,
V. A. Yamshchikov,
A. A. Sergeev,
S. V. Ivakin,
I. A. Kaplunov,
A. I. Ivanova

摘要

Abstract—

The surface of oxygen-free copper has been modified by a focused beam of a nanosecond solid-state laser under a water layer at energy densities W_p in the range 20–32 J/cm², using uncoated copper and samples having absorbing coating. Laser treatment of the uncoated surface to an energy density of 32 J/cm² produced pits about 2.75 μm deep, whereas the pit depth on the coated surface was as large as 5 μm. The pit depth was determined as a function of laser pulse energy density. The effect of impact treatment of oxygen-free copper with a single high-power nanosecond laser pulse has been examined.