Tribological performance of quenched diamond coatings on pure titanium under dry sliding conditions

IF 2.7 4区材料科学 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY

Materials Letters Pub Date : 2025-09-30 DOI:10.1016/j.matlet.2025.139592

Mahmoud Talaat Youssef , Mohamed Ragab Diab , Ahmed Hamed Oraby , Tomohiro Yoshida , Tsuyoshi Yoshitake , Abdelrahman Zkria Ahmed

引用次数: 0

Abstract

Titanium's use in demanding tribological applications is limited by its high friction and low wear resistance. This study demonstrates that quenched diamond (Q-dia) coatings, deposited via coaxial arc plasma deposition, substantially improve titanium's performance under dry sliding. The Q-dia coating achieved a low friction coefficient of 0.25 and an exceptionally low wear rate of 4.04 × 10⁻⁶ mm³/N·m under dry sliding conditions, representing an 88.3 % improvement in wear resistance at 10 N compared with uncoated pure titanium. These enhancements are attributed to the coating's nanodiamond/amorphous carbon composite structure, which combines high hardness with the formation of a lubricious tribo-film. The results highlight Q-dia coatings as a promising solution for extending titanium's lifespan in high-load, lubrication-free environments.

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干滑动条件下纯钛表面淬火金刚石涂层的摩擦学性能

钛在要求苛刻的摩擦学应用中受到其高摩擦和低耐磨性的限制。该研究表明，淬火金刚石（Q-dia）涂层，通过同轴电弧等离子沉积，大大提高了钛在干滑动下的性能。在干滑动条件下，Q-dia涂层的摩擦系数低至0.25，磨损率极低，为4.04 × 10−6 mm3/N·m，与未涂层的纯钛相比，10 N时的耐磨性提高了88.3%。这些增强归功于涂层的纳米金刚石/非晶碳复合结构，该结构结合了高硬度和形成的有色摩擦膜。结果表明，Q-dia涂层是一种在高负荷、无润滑环境下延长钛寿命的有前途的解决方案。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Materials Letters 工程技术-材料科学：综合

CiteScore

5.60

自引率

3.30%

发文量

1948

审稿时长

50 days

期刊介绍： Materials Letters has an open access mirror journal Materials Letters: X, sharing the same aims and scope, editorial team, submission system and rigorous peer review. Materials Letters is dedicated to publishing novel, cutting edge reports of broad interest to the materials community. The journal provides a forum for materials scientists and engineers, physicists, and chemists to rapidly communicate on the most important topics in the field of materials. Contributions include, but are not limited to, a variety of topics such as: • Materials - Metals and alloys, amorphous solids, ceramics, composites, polymers, semiconductors • Applications - Structural, opto-electronic, magnetic, medical, MEMS, sensors, smart • Characterization - Analytical, microscopy, scanning probes, nanoscopic, optical, electrical, magnetic, acoustic, spectroscopic, diffraction • Novel Materials - Micro and nanostructures (nanowires, nanotubes, nanoparticles), nanocomposites, thin films, superlattices, quantum dots. • Processing - Crystal growth, thin film processing, sol-gel processing, mechanical processing, assembly, nanocrystalline processing. • Properties - Mechanical, magnetic, optical, electrical, ferroelectric, thermal, interfacial, transport, thermodynamic • Synthesis - Quenching, solid state, solidification, solution synthesis, vapor deposition, high pressure, explosive