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E. Magel¹, J. Kalousek² and P. Sroba³

¹Automotive and Surface Transportation, National Research Council Canada, Ottawa, Canada
²Formerly: Centre for Surface Transportation Technology, National Research Council Canada, Ottawa, Canada
³Sroba Rail Services Pty Ltd, Newcastle, NSW, Australia

doi:10.4203/ccp.104.116

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E. Magel, J. Kalousek, P. Sroba, "Chasing the Magic Wear Rate", in J. Pombo, (Editor), "Proceedings of the Second International Conference on Railway Technology: Research, Development and Maintenance", Civil-Comp Press, Stirlingshire, UK, Paper 116, 2014. doi:10.4203/ccp.104.116

Keywords: magic wear rate, rolling contact fatigue, rail grinding.

Summary

The magic wear rate is the rate of wear at which any rolling contact fatigue cracks that are in initial stages of development are removed either by natural or a combination of natural and artificial wear. It is a simple concept which recognizes that when there is little or no wear, the rail will usually fail as a result of contact fatigue, but when there is excessive wear, the life is unnecessarily wasted. The concept has direct application to rail maintenance practices, in particular rail grinding. This paper details the basic theory of the magic wear rate and includes a discussion about the impact of various influencing factors including wheel load, friction, track curvature and metallurgy. Application is made chiefly to rail grinding, although it is acknowledged that the principle also extends to wheel wear. Examples of current practices are given and a new approach to rail grinding is presented that would better target the magic wear rate.

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Front Page Browse CCP CSETS CTR IJRT Other Authors Search Purchase Guide FAQ Contact us	Civil-Comp Proceedings ISSN 1759-3433 CCP: 104 PROCEEDINGS OF THE SECOND INTERNATIONAL CONFERENCE ON RAILWAY TECHNOLOGY: RESEARCH, DEVELOPMENT AND MAINTENANCE Edited by: J. Pombo Paper 116 Chasing the Magic Wear Rate E. Magel¹, J. Kalousek² and P. Sroba³ ¹Automotive and Surface Transportation, National Research Council Canada, Ottawa, Canada ²Formerly: Centre for Surface Transportation Technology, National Research Council Canada, Ottawa, Canada ³Sroba Rail Services Pty Ltd, Newcastle, NSW, Australia doi:10.4203/ccp.104.116 purchase the full-text of this paper Full Bibliographic Reference for this paper E. Magel, J. Kalousek, P. Sroba, "Chasing the Magic Wear Rate", in J. Pombo, (Editor), "Proceedings of the Second International Conference on Railway Technology: Research, Development and Maintenance", Civil-Comp Press, Stirlingshire, UK, Paper 116, 2014. doi:10.4203/ccp.104.116 Keywords: magic wear rate, rolling contact fatigue, rail grinding. Summary The magic wear rate is the rate of wear at which any rolling contact fatigue cracks that are in initial stages of development are removed either by natural or a combination of natural and artificial wear. It is a simple concept which recognizes that when there is little or no wear, the rail will usually fail as a result of contact fatigue, but when there is excessive wear, the life is unnecessarily wasted. The concept has direct application to rail maintenance practices, in particular rail grinding. This paper details the basic theory of the magic wear rate and includes a discussion about the impact of various influencing factors including wheel load, friction, track curvature and metallurgy. Application is made chiefly to rail grinding, although it is acknowledged that the principle also extends to wheel wear. Examples of current practices are given and a new approach to rail grinding is presented that would better target the magic wear rate. purchase the full-text of this paper (price £20) go to the previous paper go to the next paper return to the table of contents return to the book description purchase this book (price £65 +P&P)
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