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|Title:||A New Methodology for Long Term Creep Data Generation for Power Plant Components|
|Authors:||WILSHIRE Brian; SCHARNING P.j.; HURST ROGER|
|Citation:||Energy materials vol. 2 no. 2 p. 84-88|
|Type:||Contributions to Conferences|
|Abstract:||Using stress rupture results openly available for Grade 91 steel, three features of a new methodology for creep data analysis are summarized. Firstly, in contrast to traditional power law and parametric methods, 100,000 h creep strengths of power plant steels are predicted accurately by extended extrapolation of creep lives from tests lasting a maximum of 5000 h. Secondly, related approaches rationalize creep ductility measurements in a manner which provides information relevant to creep damage evolution in operational plant. Finally, reference is made to a set of new relationships developed to offer a physically-meaningful foundation not only for rationalization and extrapolation but also for interpretation of the creep and creep fracture properties of metals and alloys.|
|JRC Institute:||Institute for Energy and Transport|
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