Femtosecond laser machining characteristics in a single-crystal superalloy

被引：0
|
作者：
Wei Zhang
Guanghua Cheng
Qiang Feng
Lamei Cao
机构：
[1] University of Science and Technology Beijing,State Key Laboratory for Advanced Metals and Materials
[2] Xi’an Institute of Optics and Precision Mechanics of Chinese Academy of Sciences,State Key Laboratory of Transient Optics and Photonics
[3] University of Science and Technology Beijing,National Center for Materials Service Safety
[4] Beijing Institute of Aeronautical Materials,National Key Laboratory of Science and Technology on Advanced High Temperature Structural Materials
来源：
Rare Metals | 2011年 / 30卷
关键词：
femtosecond laser; nanosecond laser; machining; threshold; single-crystal superalloy;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Femtosecond laser machining characteristics of a nickel-base single-crystal superalloy were investigated as a function of laser fluence and the number of laser pulses. The significant decrease of recast layer for femtosecond laser machining was observed compared with that for nanosecond laser machining. The ablation thresholds for 1, 10, and 100 femtosecond pulse exposure were measured. Two ablation regions of the ablated crater were observed. The change of the ablation diameter and depth depended on the laser fluence and the number of laser pulses. And higher laser fluence could enable a faster rate of laser-machining.
引用
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页码：639 / 642
页数：3
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