Liquid Lubrication and Tribo-Film Formation

9532004 Wilsdorf将通过在润滑环境中的高压Bridgman砧装置中剪切纯金属箔或粉末的堆叠来研究润滑剂对严重摩擦接触中的金属非晶化的预期效果。 测试将从铜箔和银箔开始，然后扩展到铜箔和铁粉。 待测试的润滑剂包括石蜡油、含添加剂的油和高压合成油。 将测量剪切阻力并进行X射线分析以确定非晶化的程度。 近表面下材料的微观结构将通过电子显微镜来确定。 希望该研究能为表征典型摩擦学微凸体接触下控制微观接触体积的材料行为奠定基础。 ***

9532004 Wilsdorf The expected effect of lubricants on metal amorphization in severe tribocontacts will be studied by shearing of stacks of pure metal foils, or powders, in a high pressure Bridgman anvil apparatus in a lubricated environment. The tests will start with copper and silver foils and later extend to copper and iron foils and powders. The lubricants to be tested include paraffin oil, an additive-containing oil, and a high pressure synthetic oil. The shear resistance will be measured and X-ray analysis will be performed to determine the extent of amorphization. Microstructure of the near-subsurface material will be determined by electron microscopy. It is hoped that the study will lay the foundation for the characterization of the materials behavior which controls the microscopic contact volumes under typical tribological asperity contacts. ***