Počet záznamů: 1

Study of thermal stability of ultrafine-grained copper by means of electron back scattering diffraction

SYSNO ASEP	0353414
Druh ASEP	J - Článek v odborném periodiku
Zařazení RIV	J - Článek v odborném periodiku
Poddruh J	Článek ve WOS
Název	Study of thermal stability of ultrafine-grained copper by means of electron back scattering diffraction
Tvůrce(i)	Man, O. (CZ) Pantělejev, L. (CZ) Kunz, Ludvík (UFM-A)_{RID, ORCID}
Celkový počet autorů	3
Zdroj.dok.	Materials Transactions. - : Japan Institute of Metals and Materials - ISSN 1345-9678 Roč. 51, č. 2 (2010), s. 209-213
Poč.str.	5 s.
Jazyk dok.	eng - angličtina
Země vyd.	JP - Japonsko
Klíč. slova	ultra-fine grained copper ; thermal stability of microstructure ; electron back scattering diffraction ; grain size ; texture
Vědní obor RIV	JG - Hutnictví, kovové materiály
CEP	1QS200410502 GA AV ČR - Akademie věd
CEZ	AV0Z20410507 - UFM-A (2005-2011)
UT WOS	000276538900003
DOI	10.2320/matertrans.MC200909
Anotace	Thermal stability of ultrafine-grained (UFG) structure of 99.9% pure copper produced by eight equal channel angular pressing (ECAP) passes was studied. The annealing experiments were conducted at 180°C. The dwell times were in the range of 10 to 120 min. The electron backscattering diffraction (EBSD) analyses were performed before and after annealing at exactly the same area in order to quantify the degree of decomposition of the UFG structure. Definition of grain boundaries was based on the misorientation angle of 1°. More advanced analysis of the EBSD results based on a kernel average misorientation (KAM) parameter was performed. Inverse pole figure maps did not reveal any substantial changes of UFG microstructure due to annealing. Some shift in the KAM modus in comparison with the initial state was observed but its magnitude was found negligible. Also changes in texture were found to be minor. On the other hand the microhardness increases with increasing time of annealing.
Pracoviště	Ústav fyziky materiálu
Kontakt	Yvonna Šrámková, sramkova@ipm.cz, Tel.: 532 290 485
Rok sběru	2011

Počet záznamů: 1