Random Fatigue Limits of China Railway Grade B Cast Steel Wheel

Abstract:

Random fatigue limits are experimentally studied on China grade B cast steel wheel. Test data were obtained by employing a so-called small sampling up-and-down test method. Results reveal that fatigue cracks of the present material were commonly initiated from the casting flaw of shrinkage cavities and grew with typical fatigue river-like flowers and striations. To address the scattered test data, randomness of fatigue limits are comparably measured by the existent four approaches, i.e. conventional, Dixon-Mood, Zhang-Kececioglu, and Zhao-Yang approaches. It is verified that Zhao-Yang approach is appropriately applied for the present assessment on random fatigue limits of China grade B cast steel wheel.

• Periodical: Key Engineering Materials (Volumes 480-481)
• Pages: 347-351
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.480-481.347
• Online since: June 2011
• Authors: Yong Xiang Zhao, Bing Yang, Z.G. Wang
• Keywords: Fatigue Limit, Grade B Cast Steel, Railway, Wheel

References

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DOI: 10.3403/30334206

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