Cyclic Softening of Tempered Ferritic-Martensitic Steel P91

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F26722445%3A_____%2F15%3A%230001110" target="_blank" >RIV/26722445:_____/15:#0001110 - isvavai.cz</a>
Result on the web
—
DOI - Digital Object Identifier
—

Result language
angličtina
Original language name
Cyclic Softening of Tempered Ferritic-Martensitic Steel P91
Original language description
For the ferritic-martensitic steel P91 cyclic softening has been identified as important factor in the assessments of creep-fatigue in nuclear components. Better understanding of the cyclic softening is needed as it is believed to be the main contributorfor the complex material behavior encountered in creep-fatigue testing. In fast reactor components the main life shortening load cycles are from thermal fluctuations causing through-wall stress gradients. The main objective of this work (as a Task in the European project MATISSE) is to perform tailored experiments and to develop models for understanding and predicting the cyclic-softening of P91. The supporting experimental program produces data for calibration and validations of the developed models.An existing elasto-viscoplasticity model simulates the key mechanisms such as decrease in dislocation density, increase in sub-grain size and recovering phenomena. The model will be modified to also incorporate the effect of hold time on
Czech name
—
Czech description
—

Project
<a href="/en/project/ED2.1.00%2F03.0108" target="_blank" >ED2.1.00/03.0108: Sustainable Energy</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2015
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Similar results(10)