Publication detail
Effect of Annealing on Microstructure and Fatigue Life of UFG Copper
NAVRÁTILOVÁ, L. KUNZ, L. MAN, O. PANTĚLEJEV, L.
Czech title
Vliv žíhání na mikrostrukturu a únavovou životnost ultrajemnozrnné mědi
English title
Effect of Annealing on Microstructure and Fatigue Life of UFG Copper
Type
journal article - other
Language
en
Original abstract
The influence of annealing of ultrafine-grained copper prepared by equal channel angular pressing on its fatigue life was experimentally determined. The fatigue loading was carried out with tensile mean stress of 200 MPa. The microstructure was examined by means of transmission electron microscopy and by means of electron back scattering diffraction. Annealing was found to result in development of bimodal microstructure. The fatigue performance of this structure is worth than that of original ultrafine-grained structure.
Czech abstract
Příspěvek se zabývá vlivem žíhání ultra-jemnozrnné Cu připravené ECAP metodouna únavovou životnost. Únavové zatěžování bylo prováděno v asymentrickém cyklu, se středním napětím 200 MPa. Mikrostruktura byla hodnocena na transmisním elektronovém mikroskopu a pomocí metody EBSD. Bylo zjištěno, že žíhání vede ke vzniku bimodální mikrostruktury. Únavové vlastnosti této bimodální struktury jse ukazují horší než vykazuje ultra-jemnozrnná struktura po ECAP procesu.
English abstract
The influence of annealing of ultrafine-grained copper prepared by equal channel angular pressing on its fatigue life was experimentally determined. The fatigue loading was carried out with tensile mean stress of 200 MPa. The microstructure was examined by means of transmission electron microscopy and by means of electron back scattering diffraction. Annealing was found to result in development of bimodal microstructure. The fatigue performance of this structure is worth than that of original ultrafine-grained structure.
Keywords in Czech
ultra-jemnozrnná Cu, ECAP, žíhání, únavové vlastnosti, střední napětí
Keywords in English
UFG copper, ECAP, annealing, fatigue behaviour, mean stress
RIV year
2009
Released
13.07.2009
Publisher
University of Žilina
Location
Žilina
ISSN
1335-0803
Journal
Materiálové inžinierstvo
Volume
XVI
Number
3a
Pages from–to
28–31
Pages count
4
BIBTEX
@article{BUT49173,
author="Lucie {Navrátilová} and Ludvík {Kunz} and Ondřej {Man} and Libor {Pantělejev},
title="Effect of Annealing on Microstructure and Fatigue Life of UFG Copper",
journal="Materiálové inžinierstvo",
year="2009",
volume="XVI",
number="3a",
month="July",
pages="28--31",
publisher="University of Žilina",
address="Žilina",
issn="1335-0803"
}