Femtosecond and Nanosecond Laser Peening of Stainless Steel
Femtosecond and Nanosecond Laser Peening of Stainless Steel
复制标题
不锈钢的飞秒和纳秒激光喷丸
DOI：
10.2961/jlmn.2010.02.0014
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发表时间：
2010
影响因子：
1.1
通讯作者：
H. Nakano
中科院分区：
文献类型：
--
作者：
H. Nakano
我们比较了飞秒激光和纳秒激光的冲击强化效果。试验样品采用商用SUS304不锈钢。样品在水约束的等离子体中进行飞秒或纳秒激光冲击加载。采用维氏显微硬度试验对激光强化引起的塑性变形对试样的加工硬化进行了评价。不锈钢表面硬度随激光能量的增加呈线性增加。研究结果表明，飞秒激光强化和纳秒激光强化的加工硬化程度相似。
We have compared the results of laser shock peening obtained by using a femtosecond laser with those obtained by using a nanosecond laser. Commercial SUS304 stainless steel was used as the test sample. The sample was subject to femtosecond or nanosecond laser-shock loading in a plasma confined by water. The Vickers microhardness test was used to evaluate the work hardening in the sample due to the plastic deformation induced by the laser peening. The surface hardness of stainless steel increased linearly with laser energy. The results of this study indicate that the extent of work hardening is similar for both femtosecond and nanosecond laser peening.