Effect of PTFE in the Ni–P–MoS2 Alloy Based Composite Coating on Corrosion and Wear Resistance

IF 0.8 4区材料科学 Q3 METALLURGY & METALLURGICAL ENGINEERING

Protection of Metals and Physical Chemistry of Surfaces Pub Date : 2026-02-06 DOI:10.1134/S2070205125701084

Li Tianle, Wang Shuai, Huo Yongchao, Geng Guoying, Qiu Wenxiu, Li Chunling, Sun Shuangqing

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引用次数: 0

Abstract

Ni–P–MoS₂ composite coatings often suffer from reduced corrosion resistance despite their excellent lubricating properties. To address this limitation, this study developed a novel Ni–P–MoS₂–PTFE composite coating via electrodeposition, incorporating hydrophilic-modified MoS₂ nanosheets and oxidized PTFE particles to enhance co-deposition and dispersion. Electrochemical tests, salt spray exposure, and mechanical characterization demonstrated significantly improved properties. The optimized coating with 3 g L^–1 PTFE exhibited superior corrosion resistance, showing a maximum electrochemical impedance of 118 300 Ω cm² after 20 days of salt spray testing. It also displayed excellent mechanical performance with a Vickers hardness of 774.4 HV and a low friction coefficient of 0.1128. The synergistic effect of PTFE and MoS₂ effectively densified the coating structure, providing enhanced barrier protection and lubrication. This work offers a practical strategy for designing high-performance anti-corrosion and wear-resistant coatings suitable for demanding industrial environments.

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PTFE对Ni-P-MoS2合金基复合镀层耐蚀磨损性能的影响

尽管Ni-P-MoS2复合涂层具有优异的润滑性能，但其耐腐蚀性往往降低。为了解决这一限制，本研究通过电沉积方法开发了一种新型Ni-P-MoS2-PTFE复合涂层，将亲水性改性MoS2纳米片和氧化PTFE颗粒结合在一起，以增强共沉积和分散。电化学测试、盐雾暴露和力学表征表明，性能得到了显著改善。采用3 g L-1 PTFE对涂层进行盐雾测试后，涂层的最大电化学阻抗为118 300 Ω cm2，具有较好的耐蚀性。同时表现出优异的力学性能，维氏硬度为774.4 HV，摩擦系数为0.1128。聚四氟乙烯和二硫化钼的协同作用有效地致密了涂层结构，提供了增强的屏障保护和润滑。这项工作为设计适用于苛刻工业环境的高性能防腐耐磨涂层提供了实用策略。

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来源期刊

Protection of Metals and Physical Chemistry of Surfaces 工程技术-冶金工程

CiteScore

1.90

自引率

18.20%

发文量

审稿时长

4-8 weeks

期刊介绍： Protection of Metals and Physical Chemistry of Surfaces is an international peer reviewed journal that publishes articles covering all aspects of the physical chemistry of materials and interfaces in various environments. The journal covers all related problems of modern physical chemistry and materials science, including: physicochemical processes at interfaces; adsorption phenomena; complexing from molecular and supramolecular structures at the interfaces to new substances, materials and coatings; nanoscale and nanostructured materials and coatings, composed and dispersed materials; physicochemical problems of corrosion, degradation and protection; investigation methods for surface and interface systems, processes, structures, materials and coatings. No principe restrictions exist related systems, types of processes, methods of control and study. The journal welcomes conceptual, theoretical, experimental, methodological, instrumental, environmental, and all other possible studies.