Journal
ENGINEERING FAILURE ANALYSIS
Volume 14, Issue 4, Pages 573-578Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.engfailanal.2006.03.011
Keywords
fracture; castellated shaft; impact; torsional deformation; hardness layer
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In this paper, an in-service fracture of a castellated shaft was investigated. Visual inspection, SEM observation on the fracture surface, hardness test and microstructural analysis were performed to determine the cause for the fracture, The results showed that the immediate cause for such a failure-was the overload impact and torsional deformation. However, deficient hardness of the hardening layer contributed to this failure as an additive factor. (c) 2006 Elsevier Ltd. All rights reserved.
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