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Failure analysis of a twin‐screw pump shaft
Author(s) -
Xu Shugen,
Zhang Yuan,
Wang Chong,
Sun Zhiwei,
Wang Shengkun,
Zhao Yanling
Publication year - 2018
Publication title -
process safety progress
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.378
H-Index - 40
eISSN - 1547-5913
pISSN - 1066-8527
DOI - 10.1002/prs.11929
Subject(s) - fracture (geology) , bending , materials science , metallurgy , microstructure , structural engineering , forensic engineering , engineering , composite material
A failure analysis was performed on a fractured twin‐screw pump shaft. Through the analysis of the macromorphology and microstructure of the fracture, the analysis of the chemical compositions of shaft material, the metallographic test of the specimens cut from the fracture, the investigation of the operating condition of the pump, the main reason for the fracture can be described as the increased rotating and bending load caused by low viscosity medium. Corresponding preventive measures were put forward. © 2017 American Institute of Chemical Engineers Process Process Saf Prog 37:95–103, 2018