Analysis on Fracture Causes of Condensate Water Pump Shaft

Abstract:

Failure causes on a condensate pump shaft were discussed by means of macroscopic observation, chemical composition analysis, metallurgical microstructure inspection, mechanical property tests and stress analysis. The experimental results showed that the improper material with disqualified chemical composition, improper microstructure and poor mechanical properties acted as inherent factor. In addition, structure design that led to stress concentration contributed to the failure as external factor. Finally, fatigue fracture happened at the reduce section of the pump shaft.

• Periodical: Advanced Materials Research (Volumes 1004-1005)
• Pages: 1401-1405
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.1004-1005.1401
• Online since: August 2014
• Authors: Xue Xia Xu, Wei Yong Li, Yan Ting Feng, Hao Ke, Guang Xing Zhang, Hong Xia Cui, Xiao Guang Niu, Qing Wang
• Keywords: Fatigue Fracture, Intergranular Propagation, Pump Shaft

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