Wettability of Sn alloys at metal interfaces: Metal surface treatment, interfacial temperature control and elemental modification

IF 5.3 2区材料科学 Q1 MATERIALS SCIENCE, COATINGS & FILMS

Surface & Coatings Technology Pub Date : 2025-02-28 DOI:10.1016/j.surfcoat.2025.131991

Yurong Wang , Wei Liu , Buwei Xiao , Xiaoyu Liang , Pengcheng Lv , Jun Zhou , Feng Lin

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引用次数: 0

Abstract

Controlling the wettability of metal surfaces has been extensively studied in advanced fields such as bio-manufacturing, metalworking, and aerospace, which determines interfacial properties such as corrosion resistance and heat transfer efficiency. Wettability is primarily determined by the physical and chemical properties of the metal surface, but can also be influenced by ambient temperature, surface morphology, and chemical composition. In this study, the surfaces of various metallic substrates (Ti6Al4V, 304 stainless steel, Inconel 718, aluminum, and copper) were polished, textured with a femtosecond laser, and surface coated. The wettability of Sn alloys (Sn-0.7Cu and Sn-0.7Cu-10Zn) on different metal surfaces was investigated within an appropriate temperature range and evaluated in terms of high-temperature contact angle (HTCA). The wettability of the alloy surface exhibits a tendency to decrease with increasing temperature. After polishing, Sn alloy exhibited the lowest HTCA of 102.41° on the copper substrate. Following femtosecond laser texturing, metal substrates with laser included laser-induced periodic surface (LIPSS) texture pattern demonstrated better wettability than those with a micro-pits texture. When the femtosecond laser exposure was 500, the HTCA of Sn-0.7Cu alloy on a Ti-6Al-4V alloy with a LIPSS texture (115.7°) was reduced by 5.9 % and 17.2 % compared to the polished surface (122.9°) and the surface with a micro-pits texture (139.6°), respectively. The addition of zinc to the Sn alloy significantly impacted the wettability of the 304 stainless steel substrates. The HTCA decreased by 7.6 % on the polished surface for the Sn-0.7Cu-10Zn alloy (116.8°) compared to the Sn-0.7Cu alloy (126.4°). Notably, the HTCA of the Sn-0.7Cu-10Zn alloy on the 304 SS substrate surface was as low as 12.33° when a Sn alloy coating was applied. In conclusion, the effect of modulation of wettability was realized in specific cases through various metal surface treatments in this work.

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来源期刊

Surface & Coatings Technology 工程技术-材料科学：膜

CiteScore

10.00

自引率

11.10%

发文量

921

审稿时长

19 days

期刊介绍： Surface and Coatings Technology is an international archival journal publishing scientific papers on significant developments in surface and interface engineering to modify and improve the surface properties of materials for protection in demanding contact conditions or aggressive environments, or for enhanced functional performance. Contributions range from original scientific articles concerned with fundamental and applied aspects of research or direct applications of metallic, inorganic, organic and composite coatings, to invited reviews of current technology in specific areas. Papers submitted to this journal are expected to be in line with the following aspects in processes, and properties/performance: A. Processes: Physical and chemical vapour deposition techniques, thermal and plasma spraying, surface modification by directed energy techniques such as ion, electron and laser beams, thermo-chemical treatment, wet chemical and electrochemical processes such as plating, sol-gel coating, anodization, plasma electrolytic oxidation, etc., but excluding painting. B. Properties/performance: friction performance, wear resistance (e.g., abrasion, erosion, fretting, etc), corrosion and oxidation resistance, thermal protection, diffusion resistance, hydrophilicity/hydrophobicity, and properties relevant to smart materials behaviour and enhanced multifunctional performance for environmental, energy and medical applications, but excluding device aspects.