TC4钛合金样品硬度对激光诱导等离子体温度的影响研究  

Effect of hardness of TC4 titanium alloy samples on laser‐induced plasma temperature

作　　者：杨楠[1] 程天乐 史广源 皮雨欣 崔敏超 YANG Nan;CHENG Tianle;SHI Guangyuan;PI Yuxin;CUI Minchao(Key Laboratory of High Performance Manufacturing for Aero Engine,Ministry of Industry and Information Technology,Northwestern Polytechnical University,Xi'an 710072,China;School of Mechanical Engineering,Northwestern Polytechnical University,Xi'an 710072,China)

机构地区：[1]西北工业大学航空发动机高性能制造工业和信息化部重点实验室,陕西西安710072 [2]西北工业大学机电学院,陕西西安710072

出　　处：《量子电子学报》2024年第3期522-532,共11页Chinese Journal of Quantum Electronics

基　　金：国家自然科学基金(62375221,62005218);陕西省秦创原引用高层次创新创业人才项目(QCYRCXM-2022-132);陕西省科技创新团队(2022TD-60)。

摘　　要：钛合金具有密度小、强度高、耐腐蚀等优良特性,目前已被广泛应用于压气机盘和叶片制造等航空制造领域。然而,钛合金材料的硬度较低,在服役过程中极易出现摩擦损耗等问题,从而降低部件的使用寿命。因此,原位、实时的硬度监测对钛合金部件在使用过程中的性能评估具有重要意义。本工作利用激光诱导击穿光谱(LIBS)对TC4钛合金样品热处理后的不同硬度进行了表征。实验结果发现,随着样品硬度增大,材料的激光诱导等离子体温度呈上升趋势,表明激光诱导等离子体温度可以作为金属硬度的重要表征参数。研究还进一步探究了材料硬度变化对等离子体温度影响的内在机理。Titanium alloy has excellent properties such as low density,high strength and corrosion resistance.It has been widely used in aviation manufacturing fields such as compressor disks and blades manufacturing.However,as the hardness of titanium alloy materials is low,friction loss and other problems are prone to occur during service,which reduces the service life of components.Therefore,in‑situ and real-time hardness monitoring is of great significance for the performance evaluation of titanium alloy components during use.The different hardness of TC4 titanium alloy samples after heat treatment was characterized by laser-induced breakdown spectroscopy(LIBS)in this work.The experimental results showed that the laser-induced plasma temperature of the material increases with the increase of the sample hardness,indicating that laser-induced plasma temperature can be used as an important characterization parameter of metal hardness.Furthermore,the internal mechanism of the influence of material hardness change on plasma temperature was revealed.

关 键 词：光谱学 硬度检测 激光诱导击穿光谱 等离子体温度 TC4钛合金 

分 类 号：O433[机械工程—光学工程]