Journal of Materials Engineering and Performance ( IF 2.2 ) Pub Date : 2023-06-12 , DOI: 10.1007/s11665-023-08374-7
Şefika Kasman , I. Can Uçar , Sertan Ozan
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This study used surface roughness and wettability tests to evaluate the texture created by laser processing parameters on the AISI 316LVM metal surface. On the metal surface, the texture was created using a nanosecond fiber laser according to the experiment series consisting of different levels of six different process parameters. The effect of the surface roughness of the processed texture and the laser texturing parameters on the wettability was associated with the contact angle. It has been determined that the movement of the laser beam during texture creation, i.e., the angle at which the laser beam moves on the defined geometry during texturing, significantly affected the changes in the wettability behavior of the surfaces. It was revealed that the surface roughness alone did not affect the wettability. The hatching strategy and the overlap ratios affected the surface roughness of the textured surface. It was revealed that surface wettability was affected by surface topography and roughness, which varied according to laser surface texturing parameters. The texture (E16), formed with the laser texturing parameters of 70% power, 1000 mm/s scan speed, 100 kHz frequency, 0.03 mm line spacing, and 75 ns pulse width, exhibited hydrophobic behavior with a contact angle of 114.5° and surface roughness (Sa) of 1.45 µm. E4, E6, E9, E11, E15, E17, and E18 surfaces exhibited a superhydrophilic behavior.
中文翻译:
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激光表面织构参数对生物医用级不锈钢表面特性的影响
本研究使用表面粗糙度和润湿性测试来评估激光加工参数在 AISI 316LVM 金属表面上产生的纹理。在金属表面,根据由六个不同工艺参数的不同级别组成的实验系列,使用纳秒光纤激光器创建纹理。加工纹理的表面粗糙度和激光纹理参数对润湿性的影响与接触角有关。已经确定,在纹理创建期间激光束的移动,即激光束在纹理化期间在定义的几何形状上移动的角度,显着影响表面润湿性行为的变化。结果表明,表面粗糙度本身并不影响润湿性。孵化策略和重叠率影响纹理表面的表面粗糙度。结果表明,表面润湿性受表面形貌和粗糙度的影响,表面形貌和粗糙度随激光表面纹理化参数而变化。采用 70% 功率、1000 mm/s 扫描速度、100 kHz 频率、0.03 mm 线间距和 75 ns 脉冲宽度的激光纹理化参数形成的纹理 (E16) 表现出疏水行为,接触角为 114.5° 和表面粗糙度 (Sa) 为 1.45 µm。E4、E6、E9、E11、E15、E17 和 E18 表面表现出超亲水行为。采用70%功率、1000 mm/s扫描速度、100 kHz频率、0.03 mm线间距和75 ns脉冲宽度的激光制绒参数形成,表现出疏水性,接触角为114.5°,表面粗糙度(Sa)为1.45 微米。E4、E6、E9、E11、E15、E17 和 E18 表面表现出超亲水行为。采用70%功率、1000 mm/s扫描速度、100 kHz频率、0.03 mm线间距和75 ns脉冲宽度的激光制绒参数形成,表现出疏水性,接触角为114.5°,表面粗糙度(Sa)为1.45 微米。E4、E6、E9、E11、E15、E17 和 E18 表面表现出超亲水行为。