When a machine is in operation, two moving surfaces interact to generate a large amount of wear particles. The wear debris generated inside the machine or contaminants from outside plays important roles in both two-body and three-body wear. For all mining and port machinery, their lubricants are very likely to be polluted by contaminants such as silica and other metallic debris such as iron and nickel. In order to seek a deeper understanding of the effects of different contaminants on wear process, this project investigated sliding wear processes when silica powder and iron powder exist in lubricants. Four sliding wear tests were conducted on a pin-on-disc tester with and without the contaminants. Visual inspection, ferrography analysis, particle quantity analysis using a particle analyzer, and numerical surface analysis using confocal laser scanning microscopy (CLSM) were conducted to study the wear particles and wear surfaces. Supported by the data generated from the comprehensive analyses on the wear particles and wear surfaces, the investigation of the effects of the added contaminants to the wear processes and wear mechanisms have been carried out and presented in this paper.

对第14届材料磨损会议重点涉及的生物摩擦学、金属磨损、表面涂层、冲蚀、纳米摩擦学、复合材料以及磨损监测等研究领域的最新进展进行了评述，对摩擦学领域今后的研究重点进行了展望。

The lubricated rolling wear was simulated using a specially modified pin-on-disctester. Wear particles were collected in running-in and steady state wear stage, and analysed using a particle analyser, ferrography, confocal laser scanning microscopy and computer image analysis techniques. Numerical parameters, Ra, Rq and Rsk were used to measure the evolutions of the surface alternations from the running-in to steady state wear stage. Quantitative data on the evolutions of the surfaces of both the wear debris and the wear components were presented in the paper. The knowledge obtained in this research is important for predicting wear conditions using wear debris analysis techniques, while further understanding of the wear mechanisms and wear characteristics has been also gained.

在磨粒分析研究领域，磨粒二维特征研究已经比较成熟，但是根据二维图像无法准确获取磨粒表面的三维形貌信息，磨粒的三维图像能给研究者提供更完全更丰富的信息，因此，开展磨粒的三维表面形貌研究具有重要意义。欲开展磨粒的三维研究，首要的难题是磨粒表面高度数据的获取。激光共焦扫描显微镜（CLSM）及其图像处理技术的发展为获取磨粒的三维表面信息提供了契机。研究开发了基于Bio-rad Radiance 2000激光共焦显微镜的磨粒三维表面形貌获取技术，结果表明具有良好的应用效果。

研究了适配于铁谱显微镜的图像数字化处理系统，探讨了其原理、精度、适用性、以及经济性，并介绍了ImageView图像数字化处理系统的实际试用效果。