High-temperature crack-arrest behavior of prototypical and degraded (simulated) reactor pressure vessel steels

Sixteen wide-plate crack-arrest tests have been completed, ten utilizing specimens fabricated from A533B Class 1 material and six fabricated from a low-upper-shelf base material. Each test utilized a single-edge notched specimen that was subjected to a linear thermal gradient along the plane of crac...

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Bibliographic Details
Published in:The International journal of pressure vessels and piping 1989, Vol.39 (3), p.189-208
Main Authors: Naus, D.J., Keeney-Walker, J., Bass, B.R., Fields, R.J., deWit, R., Low, S.R.
Format: Article
Language:English
Subjects:
Applied sciences
Exact sciences and technology
Fractures
Mechanical properties and methods of testing. Rheology. Fracture mechanics. Tribology
Metals. Metallurgy
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Summary:Sixteen wide-plate crack-arrest tests have been completed, ten utilizing specimens fabricated from A533B Class 1 material and six fabricated from a low-upper-shelf base material. Each test utilized a single-edge notched specimen that was subjected to a linear thermal gradient along the plane of crack propagation. Test results exhibit an increase in crack-arrest toughness ( K Ia ) with temperature, with the rate of increase becoming greater as the temperature increases. When the wide-plate test results are compared with other large-specimen results, the data show a consistent trend in which the K Ia data extend above the limit provided in ASME Section XI.
ISSN:0308-0161
1879-3541
DOI:10.1016/0308-0161(89)90024-0