Tribochemical reactions on steel and other surfaces in new and aged oils

新油和旧油中钢和其他表面的摩擦化学反应

• 批准号: 2042844
• 金额: --
• 依托单位: University of Leeds
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2018
• 资助国家: 英国
• 起止时间: 2018 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-2042844
• 关键词: Tribochemical; reactions; steel; other; surfaces

The legislation around CO2 emissions is putting great pressure on the efficient operation of engine components. The wear and friction in engines is managed by the addition of lubricant additives in the fully formulated oils. The field of study which assesses the surface/lubricant interactions and their abilities to reduce wear and friction is tribochemistry and this study will consider the tribology of lubricated systems in new and aged systems.ObjectivesThe objectives are to:Use in-situ technologies (AFM and XANES) to assess the formation of tribofilms from formulations of dispersants, detergents and friction modifiers.Determine the tribofilm reaction kinetics as a function of the contact conditionsPotential applications and benefitsThis study is firmly based in the field of tribology; the study will benefit the development of new generations of lubricant strategies for engines for the 21st century. There will be new knowledge in terms of the synergies and the antagonisms between additives.At the end of the PhD the student will have a balanced knowledge of experimental and theoretical phenomena of the tribology processes involving chemistry. The kinetics of tribofilm formation will be characterised in clean and contaminated oils.

有关二氧化碳排放的立法给发动机部件的高效运行带来了巨大压力。发动机的磨损和摩擦是通过在全配方油中添加润滑油添加剂来控制的。评估表面/润滑剂相互作用及其减少磨损和摩擦的能力的研究领域是摩擦化学，本研究将考虑新系统和老化系统中润滑系统的摩擦学。目标目标是：使用原位技术（AFM 和 XANES）评估分散剂、清洁剂和摩擦改性剂配方中摩擦膜的形成。确定摩擦膜反应 作为接触条件函数的动力学潜在应用和好处这项研究牢固地基于摩擦学领域；该研究将有利于21世纪新一代发动机润滑油策略的开发。在添加剂之间的协同作用和拮抗作用方面会有新的知识。在博士学位结束时，学生将对涉及化学的摩擦学过程的实验和理论现象有一个平衡的知识。清洁油和污染油中摩擦膜形成动力学的特征如下。