Ductile–brittle behavior at cavities in 3D iron crystals and in Fe-Cu system

0334969 - ÚT 2010 RIV CZ eng A - Abstrakt
Pelikán, Vladimír - Hora, Petr - Červená, Olga - Spielmannová, Alena - Machová, Anna
Ductile–brittle behavior at cavities in 3D iron crystals and in Fe-Cu system.
Extended abstracts of Computational Mechanics – 25th conference with international participation. Plzeň: University of West Bohemia, 2009 - (Adámek, V.; Zajíček, M.). s. 1-2. ISBN 978-80-7043-824-4.
[Výpočtová mechanika 2009. 09.11.2009-11.11.2009, Nečtiny]
Grant CEP: GA ČR(CZ) GA101/07/0789; GA AV ČR KJB200760802
Výzkumný záměr: CEZ:AV0Z20760514
Klíčová slova: molecular dynamics * bcc iron crystal * cavity
Kód oboru RIV: JL - Únava materiálu a lomová mechanika

This paper is devoted to the molecular dynamic simulations of the mechanical response of an atomically blunted cavity uncovered and covered by copper atoms, which was observed also experimentally. The cavity is loaded uni-axially in tension mode I. Our question is how the copper atoms influence the ductile-brittle behavior at the crack front of the blunted cavity in comparison with the blunted cavity in pure bcc iron.
Trvalý link: http://hdl.handle.net/11104/0179570