Ray, Ashok K and Tiwari, Y N and Singh, R and Tarafder, S (2000) Prediction of remaining life of a FCCU reactor plate. Engineering Failure Analysis, 7 (2). pp. 75-86.
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Evaluation of mechanical properties is a powerful tool for investigating and assessing the performance of service exposed materials. The trends recently observed in service exposed (32 years) plain carbon steels used as a reactor vessel material in a petrochemical plant have been highlighted in this paper. Health assessment of both base and welded joint was made using impact tests at room temperature, destructive accelerated stress rupture and tensile tests at different temperatures, and some nondestructive tests. From the stress rupture tests it could be concluded that a life of more than 10 years at the hoop stress level of the material can be obtained, provided no localised damage in the form of cracks or dents have been developed. It is recommended that a health check should be carried out after 5 years of service exposure at 485°C.
|Uncontrolled Keywords:||Service exposed; Petrochemical; Stress rupture test; Tensile properties; Remaining life|
|Divisions:||Material Science and Technology|
|Deposited By:||INVALID USER|
|Deposited On:||07 Dec 2009 18:15|
|Last Modified:||08 Feb 2012 16:30|
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