基于1060 nm MOPA激光器直接标识钛合金的工艺研究  

Research on the Technology of Directly Labeling Titanium Alloy Based on 1060 nm MOPA Laser

作　　者：陈媛[1,2] 张云飞 杨斯琦[3] Chen Yuan;Zhang Yunfeia;Yang Siqi(Shanghai Institute of Laser Technology Co.,Ltd.,Shanghai 200233,China;Shanghai DPM Traceability Engineering Research Center,Shanghai 200233,China;Collections Conservation Research Center,Shanghai Natural History Museum(Branch of Shanghai Science and Technology Museum),Shanghai 20004l,China)

机构地区：[1]上海市激光技术研究所有限公司,上海200233 [2]上海激光直接物标溯源工程技术研究中心,上海200233 [3]上海自然博物馆(上海科技馆分馆)藏品保护研究中心,上海200041

出　　处：《应用激光》2025年第1期68-74,共7页Applied Laser

基　　金：上海自然博物馆(上海科技馆分馆)激光直接物标DMP促进自博馆藏品数字化管理项目(FW-2022-121)。

摘　　要：激光着色不但能够提高材料表面的性能,还可赋予产品漂亮的外观或者实现消光等目的。采用单因素变量法在TC4合金材料表面进行激光着色试验,从而得出钛合金表面着色规律以及不同色系的能量密度阈值范围。选取稳定的4种着色效果进行着色表面SEM和元素成分分析,进一步了解激光着色的作用机理。试验结果表明:钛合金材料累计吸收能量密度的大小决定了激光表面着色的色彩呈现,能量密度越高,色彩越深,彩色标识能量密度阈值范围在1.25~20 J/mm^(2)。通过进一步研究可以得到,激光与钛合金材料相互作用形成的表面形貌以及氧化、碳化等的程度是决定着色效果呈现的内在原因。Laser coloring enhances material surface performance and imparts aesthetic appeal or achieves extinction effects.In this study,the single-factor variable method was employed to conduct laser coloring tests on the surface of TC4 alloy,aiming to determine the coloring behavior of titanium alloys and the energy density thresholds for various colors.Four stable coloring effects were selected for SEM and elemental composition analysis to elucidate the mechanism of laser coloring.The results indicate that the cumulative absorbed energy density of titanium alloy materials dictates the color appearance in laser surface coloring,with the color threshold energy density ranging from 1.25 J/mm^(2)to 20 J/mm^(2).Further investigation reveals that the surface morphology resulting from the interaction between the laser and titanium alloy materials,along with the extent of oxidation and carbonization,are the underlying factors determining the coloring effect.

关 键 词：激光着色 阈值 表面形貌 元素成分 

分 类 号：TN249[电子电信—物理电子学]