Interrelationship between Creep Deformation and Damage for Advanced Creep-Resistant Steels

0496345 - ÚFM 2019 RIV CH eng C - Conference Paper (international conference)
Sklenička, Václav - Kuchařová, Květa - Kvapilová, Marie - Kloc, Luboš - Dvořák, Jiří - Král, Petr
Interrelationship between Creep Deformation and Damage for Advanced Creep-Resistant Steels.
Advances in Fracture and Damage Mechanics XVII. Zürich: Trans Tech Publications, 2018 - (Aliabadi, F.; Rodriguez-Tembleque, L.; Dominguez, J.), s. 119-124. Key Engineering Materials, 774. ISBN 978-3-0357-1350-3. ISSN 1013-9826.
[FDM 2018 - International Conference on Fracture and Damage Mechanics /17./. Seville (ES), 04.09.2018-06.09.2018]
R&D Projects: GA ČR(CZ) GA16-09518S
Institutional support: RVO:68081723
Keywords : creep * deformation * creep damage * creep life * fracture * phenomenological models
OECD category: Materials engineering

The components used in power plants generally operate at elevated and/or high temperature and are subjected to internal pressure. Under such conditions creep is of a great concern and there is an urgent demand for methods which can be used to predict the creep life. In this work, using our earlier published creep data for advanced creep-resistant T23 and P92 steels, the interrelationship between creep deformation and damage have been analysed by linking them to the identified acting mechanisms, in terms of empirical formulas for the fracture time assessment. The validity and the applicability of various formulas are examined with the objective to gain insight into the creep deformation and fracture behaviour of the steels under investigation.
Permanent Link: http://hdl.handle.net/11104/0289509