Towards the correlation of fracture toughness in an ex-service power generating rotor

Towards the correlation of fracture toughness in an ex-service power generating rotor

This work presents preliminary results from a project aimed at deriving fracture toughness correlations for an improved assessment of the structural integrity and remaining life of low alloy steel pressure equipment where susceptibility to temper embrittlement is a consideration. Room temperature K...

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Bibliographic Details
Published in:The International journal of pressure vessels and piping Vol. 77; no. 2; pp. 113 - 116
Main Authors: Shekhter, A., Croker, A.B.L., Hellier, A.K., Moss, C.J., Ringer, S.P.
Format: Journal Article
Language:English
Published: Elsevier Ltd 01-02-2000
Subjects:
Embrittlement
Ex-service power generating rotor
Fracture toughness
Life cycle
Rotors
Service life
Structural analysis
Temper embrittlement
Temper embrittlement
Ex-service power generating rotor
Fracture toughness
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Summary:This work presents preliminary results from a project aimed at deriving fracture toughness correlations for an improved assessment of the structural integrity and remaining life of low alloy steel pressure equipment where susceptibility to temper embrittlement is a consideration. Room temperature K Ic tests, Charpy tests and small punch tests were performed on samples extracted from three different locations of a 1Cr–1Mo–0.25V wt% ex-service (136,000 h) turbine rotor in the ex-service condition. Proposed correlations for two mechanical methods are presented and discussed.
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ISSN:0308-0161
1879-3541
DOI:10.1016/S0308-0161(99)00091-5