Cyclic Plastic Response and Damage in Materials for High Temperature Applications

0439264 - ÚFM 2015 RIV US eng J - Článek v odborném periodiku
Polák, Jaroslav - Obrtlík, Karel - Petrenec, Martin
Cyclic Plastic Response and Damage in Materials for High Temperature Applications.
Strength of Materials. Roč. 46, č. 5 (2014), s. 601-607. ISSN 0039-2316. E-ISSN 1573-9325
Grant CEP: GA ČR(CZ) GA13-23652S
Institucionální podpora: RVO:68081723
Klíčová slova: fatigue damage * cyclic plastic * high temperature * crack initiation
Kód oboru RIV: JL - Únava materiálu a lomová mechanika
Impakt faktor: 0.376, rok: 2014

The characteristic changes of the cyclic plastic stress–strain response of stainless steel and superalloys derived from the analysis of hysteresis loop at different temperatures are reported. The evolution of the surface relief in strain controlled cycling is documented using high resolution SEM and TEM. The mechanisms leading to cyclic strain localization, formation of surface relief, fatigue crack initiation and early crack growth are discussed
Trvalý link: http://hdl.handle.net/11104/0242564