Purpose

This paper aims to develop a Mini-Tribometer for in-situ observation of subsurface.

Design/methodology/approach

To observe the change of the microstructure during wear in real time, an in-situ observation mini-tribometer was developed according to the requirements of the basic frictional experiments and carried out the verification experiments.

Findings

The subsurface images and the tribological data obtained from the mini-tribometer clearly show that the graphite in the matrix moves to the surface and takes part in lubrication mainly in the form of extrusion and peeling off, and the migration of graphite in the copper-based composite to the frictional interface to act as lubricant and to result in the decrease of the friction coefficient. The experimental results of the developed tribometer are accurate, which can provide important references for further research on the wear mechanism of materials.

Originality/value

The developed in-situ observation mini-tribometer can be used to observe the dynamic wear mechanism of the frictional pairs, which is very important for optimization of material design and tribological performances.

中文翻译：

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用于地下原位观测的微型摩擦计的研制及相应的实验

目的

本文旨在开发一种用于地下原位观测的微型摩擦计。

设计/方法/方法

为实时观察磨损过程中微观结构的变化，根据基础摩擦实验的要求研制了原位观察微型摩擦仪，并进行了验证实验。

发现

从微型摩擦计获得的亚表面图像和摩擦学数据清楚地表明，基体中的石墨向表面移动并主要以挤压和剥离的形式参与润滑，石墨在铜基中的迁移。复合到摩擦界面作为润滑剂并导致摩擦系数降低。研制的摩擦计实验结果准确，可为进一步研究材料的磨损机理提供重要参考。

原创性/价值

研制的原位观察微型摩擦仪可用于观察摩擦副的动态磨损机理，对材料设计和摩擦学性能的优化具有重要意义。