WEAR PARTICLES ANALYSIS AND RUNNING-IN OF LUBRICATED HERTZIAN CONTACTS | ||
| The International Conference on Applied Mechanics and Mechanical Engineering | ||
| Article 43, Volume 1, 1st Conference on Applied Mechanical Engineering., May 1984, Pages 143-154 PDF (2.31 M) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/amme.1984.49171 | ||
| Author | ||
| S. E. KHALIFA | ||
| Colonel Dr. Eng., Machine Design Dept., Military Technical College, Cairo, Egypt. | ||
| Abstract | ||
| In running-in period, wear plays an important role in the service-life of machines. Wear is beneficial if it occurs smoothly and gradually. The object of this work is to assess the effectiveness of wear particles analysis in characterising the running-in period. A high performance dise machines, with two discs running edge-to-edge, under steady load and different slide-rolling ratios was used. The behaviour of this lubricated Hertzien contact has been followed by three analysing methods: - Ferrography analysis of the concentration, size and morphology of wear particles. - Spectrometry oil analysis of iron content in lubricants. - Micro-geometry analysis of tested surfaces The results are compared and analysed with respect to running-in phenomena. Results show that the running-in period has been detected well by two methods, ferregraphy analysis of wear particles and micro-geometry analysis. The spectrometry failed to detect this phenomena due to its insensitivity to large particles. | ||
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