利用激光表面处理技术研究钢铁表面的润湿性和结冰问题

IF 4.3 3区材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Materials Chemistry and Physics Pub Date : 2024-10-23 DOI:10.1016/j.matchemphys.2024.130079

Seungeun Baek , Dongkyoung Lee

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引用次数: 0

摘要

结冰会影响各种行业和应用的正常功能。为了解决结冰问题，人们正在对疏水表面进行研究。在这项研究中，使用纳秒激光在 SM490A 上制造了疏水表面。观察了表面微观结构的变化。激光照射后立即观察到亲水性，随着时间的推移，接触角增大，从而产生疏水性。为了解释润湿性的变化，使用了 X 射线光电子能谱 (XPS) 来观察表面化学成分和元素键合的变化。据观察，激光照射后，铁和 O 的含量立即增加，导致表面氧化。由于氧化物具有较高的表面能，它们有助于形成超亲水性表面。由于 C-C（H）键的表面能较低，非极性的 C-C（H）键和 C 的含量随着时间的推移而增加，接触角也随之增大。在表面滴下液滴后观察冰的形状时，接触角较高的试样减少了附着面积。因此，使用纳秒激光进行表面处理可在 SM490A 试样上形成疏水表面，从而解决冰附着问题。

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Investigation of wettability and icing on the steel surface using laser surface treatment

Icing impairs normal functionality for a variety of industries and applications. Research on hydrophobic surfaces is being conducted to solve the icing problem. In this study, a hydrophobic surface was fabricated on SM490A using a nanosecond laser. The change in surface microstructure was observed. Hydrophilicity was immediately observed right after laser irradiation, and the contact angle increased over time, resulting in hydrophobicity. To explain the wettability conversion, X-Ray Photoelectron Spectroscopy (XPS) was used to observe changes in surface chemical composition and element bonding. It was observed that the level of

Fe

and

O

increased immediately after laser irradiation, resulting in surface oxidation. Since the presence of oxides has high surface energies, they contribute to super hydrophilic surfaces. Since the

C - C (H)

bond has low surface energy and the content of nonpolar

C - C (H)

bonds and

C

increased over time, the contact angle subsequently increases over time. When the ice shape was observed after dropping a droplet on the surface, the higher contact angle specimen reduced the attached area. Therefore, the surface treatment using a nanosecond laser can produce a hydrophobic surface on the SM490A specimens so that it may solve ice adhesion problems.

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来源期刊

Materials Chemistry and Physics 工程技术-材料科学：综合

CiteScore

8.70

自引率

4.30%

发文量

1515

审稿时长

69 days

期刊介绍： Materials Chemistry and Physics is devoted to short communications, full-length research papers and feature articles on interrelationships among structure, properties, processing and performance of materials. The Editors welcome manuscripts on thin films, surface and interface science, materials degradation and reliability, metallurgy, semiconductors and optoelectronic materials, fine ceramics, magnetics, superconductors, specialty polymers, nano-materials and composite materials.