激光技术, 2006, 30 (5): 0511, 网络出版: 2010-06-03
激光冲击强化黄铜的实验研究
Experimental research of laser shock processing brass
摘要
为了研究激光冲击强化对黄铜材料性能的影响,利用Nd∶YAG激光器对试样进行冲击强化处理,对其表面硬度、表面形貌、粗糙度和残余应力进行了实验测试和分析对比。实验结果表明,黄铜表面的显微硬度可提高25%左右;材料表面产生的最大残余压应力可高达-200MPa~-250MPa。冲击区域表面质量良好;微观组织未发生明显变化。
Abstract
In order to study the effect on the properties of laser peened brass,a brass sample is processed with Nd∶YAG lasers and its hardness,residual stress,roughness and texture are examined and analyzed. The experimental results show that its hardness can be improved up to 25 % and the compressive residual stress can reach-200MPa~-250MPa. On the other hand,compared with the unshocked area,the surface smoothness and the microstructure have no remarkable change.
王飞, 姚振强. 激光冲击强化黄铜的实验研究[J]. 激光技术, 2006, 30(5): 0511. WANG fei, YAO Zhen-qiang. Experimental research of laser shock processing brass[J]. Laser Technology, 2006, 30(5): 0511.