Abstract
Abstract In this paper, premature failure of the O-ring gaskets for the electric hydraulic system in a nuclear power plant in China was investigated. A series of macroscopic and microscopic analysis methods were conducted to identify the root causes of this unexpected failure, and the results showed that mismatch of the sizes between the O-ring gaskets and the groove of metal union was the primary reason, which gave rise to the permanent distortion and surface damage of the O-ring gaskets, and consequently leading to fracture under service conditions. Countermeasures were then proposed to prevent the recurrence of similar incidents, and were proved effective on site.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
