Scale and Surface Machining Quality Effect on Fatigue Properties for China Railway Grade B Cast Steel Wheel

Abstract:

Synthetic method is studied on assessing scale and surface machined effect on fatigue lives of China railway grade B cast steel wheel. Three kinds of specimens are applied for revealing the non-linear effect with scale kinetics at a least of cost. And 8 to 9 samples are applied for each kind of specimen to reveal the random fatigue behaviour. Assessing work is carried out on a phase of fatigue lives with scale kinetics at a specified strength. Results reveal that fatigue cracks were initiated from the specimen surface having a bigger site and the fatigue damage process companied with less plastic deformation than the material specimens. Random effects on fatigue lives and effect factors are constructed for measuring effects. Statistical character of the test data has been well described.

• Periodical: Key Engineering Materials (Volumes 480-481)
• Pages: 363-368
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.480-481.363
• Online since: June 2011
• Authors: Yong Xiang Zhao, Bing Yang, Y. Li
• Keywords: Fatigue Life, Grade B Cast Steel, Railway, Scale Effect, Surface Effect, Wheel

References

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[2] C.B. Cerensen: Strength capacity and calculation of mechanical components (translated by Y.L. Wang, Machine Press, Beijing, China, 1984) (in Chinese).

[3] Y.X. Zhao, B. Yang and M.F. Feng: Advanced Materials Research Vol. 44-46 (2008), p.65.

[4] Y.X. Zhao and B. Yang: Advanced Materials Research Vol. 118-120 (2010), p.59.

[5] B.S. Chen, Y.X. Zhao and B. Yang: submitted to Int. J. Fatigue, doi: 10. 1016/j. ijfatigue. 2010. 11. 026.

[6] Y.X. Zhao, B. Yang and G.X. Song: submitted to Key Engineering Materials (2011).

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[8] Y.X. Zhao, B. Yang and Z.G. Wang: submitted to Key Engineering Materials (2011).

[9] Y.X. Zhao: J. Press. Vess. Tech., Trans. on ASME Vol. 25 (2003), p.195.