This paper aims to investigate the fretting wear mechanism of an Al-Li alloy at room temperature, the tangential fretting wear tests were carried out.,The effects of displacement amplitude and fretting frequency on the tangential fretting wear characteristics were mainly investigated. The experimental data obtained are analyzed and compared.,The results indicated that the fretting friction coefficient increased with the increase of displacement amplitude. As the displacement amplitude increased, the wear scar morphology changed significantly, mainly in terms of delamination debris and furrow scratches. The wear mechanism changed from initial mild wear to more severe oxidative wear, adhesive wear and abrasive wear.,This paper extends the knowledge into mechanical tight connections. The conclusions can provide theoretical guidance for the fretting of mechanical tight connections in the field of automotive lightweight and aerospace.,The peer review history for this article is available at: https://publons.com/publon/10.1108/ILT-11-2019-0490/

中文翻译：

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铝锂合金微动磨损研究

本文旨在研究铝锂合金在室温下的微动磨损机理，进行了切向微动磨损试验。主要研究了位移幅度和微动频率对切向微动磨损特性的影响。对得到的实验数据进行了分析比较，结果表明微动摩擦系数随着位移幅值的增加而增加。随着位移幅度的增加，磨痕形态发生了显着变化，主要表现在分层碎屑和沟痕划痕方面。磨损机制从最初的轻度磨损转变为更严重的氧化磨损、粘着磨损和磨料磨损。,本文将知识扩展到机械紧密连接。