Abstract
The wetting and spreading of distilled water droplets on abrasion-treated aluminum alloy AlMg 6 surfaces were studied. Using the shadow method, the dependences of the dynamic contact angle and hysteresis on the arithmetic mean of the profile deviation were obtained. Based on the analysis of the height and hybrid 3D roughness parameters, a relationship between the texture and spreading of the droplet is established.
Highlights
Wetting and spreading is central to many natural phenomena and industrial operations such as coating, spray cooling, lubrication etc. [1,2,3,4]
The lastmentioned characterize only chosen profile and do not allow to evaluate the change in the relief along the surface in two coordinate directions. Another phenomenon influenced by the surface roughness is the contact angle hysteresis (CAH) [13], which is the difference between the advancing and receding dynamic contact angles (DCA)
The CAH is possible to use for estimating the state of a solid surface
Summary
Wetting and spreading is central to many natural phenomena and industrial operations such as coating, spray cooling, lubrication etc. [1,2,3,4]. One of the most important scientific direction is to study wetting of engineering metal surfaces used in different industrial applications and liquid spreading over them. The lastmentioned characterize only chosen profile and do not allow to evaluate the change in the relief along the surface in two coordinate directions. Another phenomenon influenced by the surface roughness is the contact angle hysteresis (CAH) [13], which is the difference between the advancing and receding dynamic contact angles (DCA). It is important to study spreading of a liquid droplet over rough surfaces taking into account the value of the CAH, which can vary depending on the roughness and irregularity locations
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
