Fabrication of Ag-bearing stainless steel coatings using friction surfacing with lattice structured consumable bars

IF 6.1 2区材料科学 Q1 MATERIALS SCIENCE, COATINGS & FILMS

Surface & Coatings Technology Pub Date : 2025-10-06 DOI:10.1016/j.surfcoat.2025.132758

Kun Liu , Guochong Rao , Shiye Li , Junfei Zhang , Lap Mou Tam , Kin Ho Lo , Hongze Wang , Valentino A.M. Cristino , Chi Tat Kwok

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Abstract

This study explores the applicability of the integration of laser powder bed fusion (LPBF) with friction surfacing for the fabrication of Ag-bearing stainless steel coatings. The methodology is based on a comparative analysis of the microstructure, hardness, corrosion resistance and antibacterial efficacy of coatings deposited from friction surfacing using LPBFed lattice structured and pre-drilled commercial bars, both filled with the same pre-mixed AISI 316L stainless steel and pure Ag powder. The results indicated that the coatings deposited from both types of consumable bars showed an antibacterial efficacy above 99 %. In addition, the coatings deposited with LPBFed lattice structured consumable bars presented a more uniform distribution of fine Ag particles, reduced grain size, improved hardness and corrosion properties, illustrating the potential of this technique for the fabrication of thick coatings from the metallic materials with low mutual solubility.

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用摩擦堆焊法制备含银不锈钢涂层

本研究探讨了激光粉末床熔合（LPBF）与摩擦堆焊相结合在含银不锈钢涂层制备中的适用性。该方法是基于对LPBFed晶格结构和预钻商业棒材摩擦表面沉积的涂层的微观结构、硬度、耐腐蚀性和抗菌效果的比较分析，两者都填充了相同的预混合AISI 316L不锈钢和纯银粉。结果表明，两种材料的抗菌效果均在99%以上。此外，LPBFed点阵结构可消耗棒材沉积的镀层呈现出细小银颗粒分布更均匀、晶粒尺寸减小、硬度和腐蚀性能提高的特点，说明了该技术在低互溶性金属材料制备厚镀层方面的潜力。

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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.