第三体贴片对聚醚醚酮复合材料与钢滑动系统摩擦学性能的影响

IF 6.1 1区工程技术 Q1 ENGINEERING, MECHANICAL

Wear Pub Date : 2025-10-11 DOI:10.1016/j.wear.2025.206388

Yuxiao Zhao , Xianqiang Pei , Leyu Lin

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引用次数: 0

摘要

基于显微组织分析，定量研究了三体贴片缠绕碳纤维在不同载荷条件下的形成机理以及对聚醚醚酮（PEEK）亚微米级ZnS和TiO2颗粒与钢滑动体系复合材料摩擦学性能的影响。摩擦学研究是在一个销盘式（PoD）摩擦计上进行的，样品几何形状为4mm × 4mm × 4mm，滑动到100Cr6钢环上。光学分析，包括扫描电子显微镜（SEM）、能量色散x射线分析（EDX）、聚焦离子束（FIB）和激光扫描显微镜（LSM），显示第三体斑块主要形成在碳纤维的进入侧和纤维在载荷下位移产生的凹槽内。这些贴片主要由亚微米颗粒组成，作为保护层，减少了纤维与基体的直接接触。定量分析表明，第三体贴片面积、载荷引起的高度差异和摩擦学性能之间存在很强的相关性。值得注意的是，随着第三体贴片面积的增加，比磨损率显著降低，凸显了其抗磨损的保护作用。这项工作提供了对亚微米颗粒改性PEEK复合材料中第三体贴片的负载依赖性形成和行为的全面理解，为高性能聚合物基摩擦材料的设计提供了新的视角。

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Effect of third-body patches on the tribological performance of a polyetheretherketone (PEEK) hybrid composite and steel sliding system

The formation mechanisms and the effect of third-body patches wrapped carbon fibers on the tribological performance of a polyetheretherketone (PEEK) hybrid composite with submicron-sized ZnS and TiO₂ particles and steel sliding system were quantitatively studied under various load conditions based on microstructural analysis. Tribological investigations were conducted on a pin-on-disc (PoD) tribometer with a sample geometry of 4 mm × 4 mm x 4 mm, which is slid against a 100Cr6 steel ring. Optical analyses, including Scanning Electron Microscopy (SEM), and Energy-dispersive X-ray analysis (EDX), Focused-Ion-Beam (FIB) and Laser Scanning Microscopy (LSM), revealed that third-body patches primarily formed on the entering side of carbon fibers and within grooves generated by fiber displacement under load. These patches were predominantly composed of submicron particles and acted as protective layers, reducing direct fiber contact with the counterbody. Quantitative analyses demonstrated a strong correlation between third-body patch area, load-induced height differences, and tribological performance. Notably, the specific wear rate decreased significantly with the increasing area of third-body patches, highlighting their protective role against wear. This work provides a comprehensive understanding of the load-dependent formation and behavior of third-body patches in submicron particle-modified PEEK composites, offering new perspectives on the design of high-performance polymer-based tribomaterials.

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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.