摘要
为了研究硬质合金表面激光微织构对其表面润湿性的影响,利用光纤激光不同功率(3,5,7,9,10W)及不同加工次数(1,2,3,4,5)加工微凹坑,采用VHX1000c超景深三维显微镜、光学显微镜分析微凹坑形貌,利用CAM 200光学接触角仪测量表面微织构(微凹坑直径、深度和织构密度)与润湿性之间的关系。结果表明:随着激光功率的增大,微凹坑深度增加,直径变化不明显;硬质合金表面的亲水性能随着微凹坑深度的增加而减小;随着微凹坑直径的增大,亲水性增强;随着微织构密度的增加,亲水性出现极值。
In order to study the influence of laser micro texture carbide surface on its surface wettability, this paper uses the optical fiber laser power（3,5,7,9,10 W） and machining number （1,2,3,4,5） to get different micro-pores and then uses cultra depth three-dimensional microscopy and optical microscopy to analyze their microscopy. Optical contact angle meter is used to dis cuss the relationships between micro-textured surface （diameter, depth and density of micro-pores） and its wettability. The results show that with the increase of the laser power, the micro indentation depth increases while the diameter variation is not obvious, the hydrophilieity of the surface decreases with the increase of micro indentation depth, increases with the increase of the micro-pore diameter and reaches the extremum with the increase of the density of the micro-textured surface.
出处
《强激光与粒子束》
EI
CAS
CSCD
北大核心
2014年第2期299-302,共4页
High Power Laser and Particle Beams
基金
国家自然科学基金项目(51175237)
中国博士后基金项目(20100481096)
江苏省博士后基金项目(1002029C)
江苏大学高级人才启动基金项目(09JDG090)
江苏省普通高校研究生科研创新计划项目(CXLX12_0621)
关键词
硬质合金
微织构
光纤激光
微凹坑
润湿性
cemented carbide
micro-texture
fiber laser
micro pore
wettability
