Failure Analyse of 35CrMoA High Speed Train Shaft

Wan Hua Yu; Shan Gao; Fei Liu; Su Dong Chen

doi:10.4028/www.scientific.net/AMR.933.76

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 933Failure Analyse of 35CrMoA High Speed Train Shaft

Failure Analyse of 35CrMoA High Speed Train Shaft

Abstract:

In order to improve the rate of finished products, failure analysis of 35CrMoA high speed train shaft was carried out by means of chemical analysis, gas element analysis, macrostructure check, fracture pattern analysis, metallographical analysis, hardness testing and other analytical methods. The results show that the big forged cracks are caused by serious non-metallic inclusion and improper hot working processes. And the brittle fracture of the shaft is mainly caused by big forged cracks and great residual stress. Meanwhile, it has suggested that the shaft should be detected by supersonic wave along axial and radial direction after forging and heat process.

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Periodical:

Advanced Materials Research (Volume 933)

Pages:

76-81

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.933.76

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Online since:

May 2014

Authors:

Wan Hua Yu*, Shan Gao, Fei Liu, Su Dong Chen

Keywords:

35CrMoA High Speed Train Shaft, Crack, Failure, Residual Stress

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* - Corresponding Author

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