氮化硅陶瓷球的滚动摩擦磨损特性与损伤行为

Si3N4 陶瓷球相比于钢球具有极限转速高，承载能力强，耐高温、酸碱腐蚀，并表现出一定的自润滑性能，以绝对的优势被作为滚动体用于高速轴承中，已成为高速、高精密轴承的关键部件。本文以高碳铬轴承钢材料作为滚道，通过模拟轴承真实服役工况的运动方式，开展 Si3N4 陶瓷球的滚动表面损伤特性研究，分别考察 Si3N4 陶瓷球与轴承钢滚道在无润滑和脂润滑条件下的滚动摩擦磨损状态和表面损伤行为，剖析 Si3N4 陶瓷球滚动摩擦损伤行为演变规律与损伤机制。结果表明：Si3N4 陶瓷球与轴承钢滚道的滚动摩擦表面损伤机制主要为磨粒磨损、黏着磨损和疲劳损伤相结合的多因素耦合损伤行为，无润滑条件下 Si3N4 陶瓷轴承球损伤形式主要为摩擦损伤、疲劳裂纹和表面剥落，同时伴随着摩擦化学反应；在脂润滑条件下 Si3N4 陶瓷轴承球损伤形式主要为摩擦损伤和表面剥落。

Compared with steel balls, Si₃N₄ ceramic balls exhibit higher limiting rotational speed, superior load-bearing capacity, excellent resistance to high temperatures, acid and alkali corrosion, and certain self-lubricating performance. With these distinct advantages, they are employed as rolling elements in high-speed bearings and have emerged as critical components for high-speed and high-precision bearings.
In this paper, high-carbon chromium bearing steel is utilized as the raceway. By simulating the motion patterns under the actual service conditions of bearings, we conduct a study on the rolling surface damage characteristics of Si₃N₄ ceramic balls. Specifically, we investigate the rolling friction and wear states and surface damage behaviors of Si₃N₄ ceramic balls paired with bearing steel raceways under both unlubricated and grease lubrication conditions, and analyze the evolution regularity of the rolling friction damage behaviors and the underlying damage mechanisms of Si₃N₄ ceramic balls.
The results demonstrate that the rolling friction surface damage mechanism of Si₃N₄ ceramic balls mating with bearing steel raceways is primarily a multi-factor coupled damage behavior combining abrasive wear, adhesive wear and fatigue damage. Under unlubricated conditions, the main damage forms of Si₃N₄ ceramic bearing balls include friction damage, fatigue cracks and surface spalling, accompanied by tribochemical reactions. Under grease lubrication conditions, the primary damage forms of Si₃N₄ ceramic bearing balls are friction damage and surface spalling.

搜集汇总

背景与挑战

背景概述

该数据集是一篇发表于2023年的研究论文，聚焦于氮化硅陶瓷球在高速轴承中的滚动摩擦磨损特性与损伤行为。研究通过模拟轴承真实工况，对比了无润滑和脂润滑条件下陶瓷球与轴承钢滚道的表面损伤机制，发现主要损伤为磨粒磨损、黏着磨损和疲劳损伤的耦合作用，揭示了不同润滑条件下的具体损伤形式。