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Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.mech.c0046195
EISBN: 978-1-62708-225-9
... Abstract A pilot-valve bushing fractured after only a few hours of service. In operation, the bushing was subjected to torsional stresses with possible slight bending stresses. A slight misalignment occurred in the assembly before fracture. The bushing was made of 8617 steel and was case...
Published: 01 June 2019
Fig. 1 Carbonitrided 8617 steel pilot-valve bushing that fractured in fatigue because of improper heat treatment. Dimensions given in inches More