应用激光蚀刻不同微织构表面的润湿性

Using laser micro - texturing technology, by controlling parameters such as the shape, spacing, and depth of micro - pits, a group of specimens with the same surface arithmetic mean deviation but different surface micro - structures were prepared on the surface of 45# steel. The surface was measured using a Talysulf CCI Lite non - contact three - dimensional optical profilometer, and its morphology was characterized by ISO 25178 three - dimensional topography characterization parameters. Wettability tests were carried out on 32# turbine oil using an SL200KS optical solid - liquid contact angle and interfacial tension meter. The effects of factors such as temperature, droplet volume, and surface structure characteristics on wettability were analyzed. Moreover, with the help of some parameters in ISO 25178, a quantitative study was conducted on the correlation between the random characteristics of the solid - surface morphology and its wettability. Based on the fact that the intrinsic solid - liquid contact angle is an acute angle, the research results show that: during the wetting process, the solid - liquid contact angle decreases rapidly first and then gradually stabilizes; the solid - liquid equilibrium contact angle decreases with the increase of temperature, and first increases and then decreases with the increase of droplet volume; laser micro - texturing can change the surface wettability. For the same surface, both the shape and direction of the micro - texture affect the surface wettability. When the groove direction of the grooved micro - textured surface is consistent with the droplet spreading direction, the wetting effect is optimal. Among the ISO 25178 series of three - dimensional topography characterization parameters, amplitude parameters (Sku, Ssk), spatial parameters (Str, Sal), hybrid parameters (Sdq, Sdr) have a strong correlation with surface wettability: the larger the Sku, Sal, Sdr, and the smaller the Ssk, Str, Sdq, the smaller the solid - liquid equilibrium contact angle, and the better the surface wettability. 你提供的内容本身就是中文呀，我猜你是不是想要英文翻译呢？如果不是，请你明确一下需求。

运用激光微织构技术，通过控制微凹坑形状、间距、深度等参数，在45＃钢表面制备了一组表面算术平均偏差相同但表面微观结构不同的试件．使用Talysulf CCI Lite非接触式三维光学轮廓仪对表面进行测量，采用ISO 25178三维形貌表征参数对其形貌进行表征．在SL200KS光学法固液接触角和界面张力仪上针对32#汽轮机油进行润湿性试验，分析了温度、液滴体积、表面结构特征等因素对润湿性的影响，并借助ISO 25178中部分参数对固体表面形貌随机特征与其润湿性之间的关联性进行了量化研究．基于固液本征接触角为锐角，研究结果表明：固液接触角在润湿过程中先迅速减小，之后逐渐趋于稳定；固液平衡接触角随温度的升高而减小，随液滴体积的增大先增大后减小；激光微织构能够改变表面润湿性，相同的表面，微织构形状、方向均影响表面润湿性，当槽状微织构表面的槽方向与液滴铺展方向一致时，润湿效果最优．ISO 25178系列三维形貌表征参数中幅度参数（Sku，Ssk）、空间参数（Str，Sal）、混合参数（Sdq，Sdr）、与表面润湿性之间具有较强的关联性：Sku，Sal，Sdr越大，Ssk，Str，Sdq越小的表面，固液平衡接触角越小，表面润湿性越好．