Improved corrosion resistance and tribological properties of MXene/NCDs coatings on the Ti6Al4V alloys

IF 5.3 1区工程技术 Q1 ENGINEERING, MECHANICAL

Wear Pub Date : 2024-09-21 DOI:10.1016/j.wear.2024.205540

Yuan Wang , Panpan Tian , Hao Cao , Yanan Li , Xin Zhao , Sheng Han , Chenchen Wang

引用次数: 0

Abstract

The poor tribological performances of titanium alloy as bone implants has important influence on its implantation failure. In this investigation, nitrogen-doped carbon quantum dots (NCDs) modified MXene (MXene/NCDs) composite coatings with “dual-action” effects were meticulously fabricated on the Ti6Al4V surface through grafting silane coupling agent and dopamine adhesion layers via chemical self-assembly techniques. The friction coefficient and wear rate of MXene/NCDs coated titanium alloy in SBF lubricant significantly decreased by 31.7 %and 91.6 %, might due to the double effect of MXene sheet slipping and NCDs rolling. Furthermore, the enhanced anticorrosion properties of MXene/NCDs coating were attributed to the ionic reaction between the surface of coating and SBF, effective shielding mechanism against the infiltration of active ions within the solution, indicated that the coating is expected to be applied in artificial joint system.

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改善 Ti6Al4V 合金上 MXene/NCDs 涂层的耐腐蚀性和摩擦学特性

钛合金作为骨植入物的摩擦学性能较差，这对其植入失败有重要影响。本研究通过化学自组装技术在 Ti6Al4V 表面接枝硅烷偶联剂和多巴胺粘附层，精心制作了具有 "双效 "效应的氮掺杂碳量子点修饰 MXene（MXene/NCDs）复合涂层。MXene/NCDs涂层钛合金在SBF润滑剂中的摩擦系数和磨损率分别显著降低了31.7%和91.6%，这可能是由于MXene薄片滑动和NCDs滚动的双重作用。此外，MXene/NCDs 涂层防腐性能的增强还归因于涂层表面与 SBF 之间的离子反应，它能有效屏蔽溶液中活性离子的渗入，这表明该涂层有望应用于人工关节系统。

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

Wear 工程技术-材料科学：综合

CiteScore

8.80

自引率

8.00%

发文量

280

审稿时长

47 days

期刊介绍： Wear journal is dedicated to the advancement of basic and applied knowledge concerning the nature of wear of materials. Broadly, topics of interest range from development of fundamental understanding of the mechanisms of wear to innovative solutions to practical engineering problems. Authors of experimental studies are expected to comment on the repeatability of the data, and whenever possible, conduct multiple measurements under similar testing conditions. Further, Wear embraces the highest standards of professional ethics, and the detection of matching content, either in written or graphical form, from other publications by the current authors or by others, may result in rejection.