Počet záznamů: 1
Stability of ultrafine-grained structure of copper under fatigue loading
- 1.
SYSNO ASEP 0361143 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Stability of ultrafine-grained structure of copper under fatigue loading Tvůrce(i) Kunz, Ludvík (UFM-A) RID, ORCID
Lukáš, Petr (UFM-A)
Pantělejev, L. (CZ)
Man, O. (CZ)Zdroj.dok. Procedia Engineering. - Amsterdam : Elsevier BV
Roč. 10, - (2011), s. 201-206Poč.str. 6 s. Jazyk dok. eng - angličtina Země vyd. NL - Nizozemsko Klíč. slova fatigue of ultrafine-grained Cu ; stability of ultrafine-grained structure ; cyclic slip bands ; shear bands Vědní obor RIV JL - Únava materiálu a lomová mechanika CEP GAP108/10/2001 GA ČR - Grantová agentura ČR CEZ AV0Z20410507 - UFM-A (2005-2011) UT WOS 000300451300033 DOI 10.1016/j.proeng.2011.04.036 Anotace Stability of microstructure of ultrafine-grained materials under cyclic loading is a crucial condition for their good fatigue performance. Changes of microstructure due to fatigue in bulk, localization of cyclic plasticity into cyclic slip bands and related development of microstructure were experimentally studied on ultrafine-grained copper prepared by equal channel angular pressing. Different reaction of ultrafine-grained structure to plastic strain-controlled and load-controlled tests was found. The different susceptibility to dynamic grain coarsening under load and plastic strain-controlled tests reported in literature cannot be explained by differences in purity or details of equal channel angular pressing. The localization of the cyclic plasticity and the development of cyclic slip bands resulting in fatigue crack initiation take place in material volumes which can be characterized as “near by oriented” regions. Pracoviště Ústav fyziky materiálu Kontakt Yvonna Šrámková, sramkova@ipm.cz, Tel.: 532 290 485 Rok sběru 2012
Počet záznamů: 1