不同载荷条件下铜铍合金电接触状态及磨损规律的演化

IF 6.1 1区工程技术 Q1 ENGINEERING, MECHANICAL

Wear Pub Date : 2025-10-01 DOI:10.1016/j.wear.2025.206366

Chun-Zheng Zhang , Fei Shen , Xin Feng , Liao-Liang Ke

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引用次数: 0

摘要

微动条件下的电接触行为受多种因素的影响，其中电流和微动位移是影响最显著的因素。本研究对铜铍合金进行载流微动磨损实验，探讨这两种因素对铜铍合金电接触状态和磨损模式的影响。分析了接触电阻（ECR）、接触区周围温度和磨损形态随电流负载和微动位移的变化规律，区分了三种不同的接触电阻模式和两种不同的磨损形态。在实验数据的基础上，根据不同条件下的等效电流密度绘制了区分电接触状态的相图。揭示了不同磨损模式的机理和摩擦传递结构层。研究结果可为相关电连接器的设计和应用提供理论支持。

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Evolution of electrical contact status and wear pattern under various loading conditions for copper-beryllium alloy

Electrical contact behavior under fretting conditions is influenced by several factors, among them the most significant ones are current and fretting displacement. In this study, current-carrying fretting wear experiments are conducted on a copper-beryllium alloy to investigate the effects of both factors on the electrical contact status and wear pattern. The evolution of electrical contact resistance (ECR), temperature around the contact zone, and wear morphology with current load and fretting displacement are analyzed to distinguish three different patterns of ECR and two different types of wear morphology. Based on the experimental data, a phase diagram to distinguish electrical contact statuses is drawn based on the equivalent current densities under different conditions. The mechanism for different wear patterns and the tribological transfer structure layer are also revealed. The results can provide theoretical support for the design and application of related electrical connectors.

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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.