Mechanism-based understanding of the transfer of plastic-bonded fluid-free lubricant systems in the lubricant body-to-body contact and its influence on the tribological properties in highly loaded body-to-body contacts

基于机理的理解塑料粘合无流体润滑系统在润滑剂体与体接触中的传递及其对高负载体与体接触中摩擦学性能的影响

• 批准号: 407650920
• 负责人: Professor Dr. Michael Kopnarski
• 金额: --
• 依托单位: Lehrstuhl für Verbundwerkstoffe (CCE)
• 依托单位国家: 德国
• 项目类别: Priority Programmes
• 财政年份: 2018
• 资助国家: 德国
• 起止时间: 2017-12-31 至 2020-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/407650920?language=en
• 关键词: Mechanism; based; understanding; transfer; plastic

The overall scientific objective of the proposed subproject is to describe the mechanisms of friction and wear with respect to tribofilm formation in highly loaded tribological systems in which the lubrication of metal friction pairs is achieved by plastic-bonded solid lubricants. Specifically, the relationship should first be examined and evaluated in simple contact geometries. In a second stage, the general results are transferred to technically proven contact geometries in machine elements. Particular attention is paid to the provision and transfer of solid lubricant in the plastic / metal interaction. The basis for this are the following work objectives:- Characterization of tribofilm formation in solid lubricant / metal contact under different operating conditions (surface pressure, speed and temperature as well as counter topography) and its influence on the transfer process into and in between metal / metal contact with high contact pressure in different model test systems.- Description of the interaction of solid lubricant composition, surface pressure, speed, temperature and tribofilm formation. - Investigation of the mechanisms for tribolayer formation and validation of the knowledge gained in model testing by component testing. - Explaination of the mechanisms of tribolayer formation and validation of the knowledge gained in model testing using component testing.- Comparison of the delivery and transfer processes of tribo films in different tribosystems.- Identification of the relationships and formulation of directly implementable results for application.The proposed project covers the fundamental mechanistic investigation of the provision and transfer processes of thermoplastic-based solid lubricants in high mechanical stress tribological systems. A successful project can not only gain a deeper understanding of the mechanisms of tribofilm formation, but also enable a solid lubricant system based on thermoplastics for industrial application. The proposed project covers the fundamental mechanistic investigation of the delivery and transfer processes of polymer bonded solid lubricants tribological systems at high surface pressure. A successful project, due to a deep understanding of the mechanisms of tribofilm formation, ultimately allows the transfer of the concept to industrial application.

拟议子项目的总体科学目标是描述高负荷摩擦系统中摩擦膜形成方面的摩擦和磨损机制，其中金属摩擦副的润滑是通过塑料粘合固体润滑剂实现的。具体来说，首先应该在简单的接触几何中检查和评估这种关系。在第二阶段，将一般结果转换为机器元件中经过技术验证的接触几何形状。特别注意的是提供和转移的固体润滑剂在塑料/金属的相互作用。其基础是以下工作目标：-表征不同操作条件（表面压力、速度和温度以及反向形貌）下固体润滑剂/金属接触中的摩擦膜形成及其对不同模型测试系统中高接触压力下金属/金属接触中和金属/金属接触之间的转移过程的影响。描述固体润滑剂成分、表面压力、速度、温度和摩擦膜形成的相互作用。- 摩擦层形成机制的研究和通过组件测试验证模型测试中获得的知识。- 解释摩擦层形成的机制，并使用组件测试验证模型测试中获得的知识。比较摩擦膜在不同摩擦系统中的输送和转移过程。识别的关系和制定的直接可实施的结果的应用。拟议的项目涵盖了高机械应力摩擦系统中的热塑性固体润滑剂的供应和转移过程的基本机理研究。一个成功的项目不仅可以更深入地了解摩擦膜形成的机理，而且可以使基于热塑性塑料的固体润滑系统用于工业应用。该项目涵盖了高表面压力下聚合物粘结固体润滑剂摩擦学系统的输送和转移过程的基本机理研究。一个成功的项目，由于对摩擦膜形成机制的深刻理解，最终允许将概念转移到工业应用中。