Detail publikačního výsledku

Stability of Microstructure of Ultrafine-Grained Copper Under Fatigue and Thermal Exposition

KUNZ, L.; LUKÁŠ, P.; PANTĚLEJEV, L.; MAN, O.

Originální název

Stability of Microstructure of Ultrafine-Grained Copper Under Fatigue and Thermal Exposition

Anglický název

Stability of Microstructure of Ultrafine-Grained Copper Under Fatigue and Thermal Exposition

Druh

Článek recenzovaný mimo WoS a Scopus

Originální abstrakt

Effect of cyclic loading and thermal exposition on microstructure of bulk ultrafinegrained Cu prepared by equal channel angular pressing was experimentally investigated by means of electron backscattering diffraction and by transmission electron microscopy. Stability of the microstructure under stress-controlled cyclic loading with a tensile mean stress of 200 MPa was shown to be high. Neither dynamic grain coarsening nor development of bimodal microstructure was observed. However, annealing at 250 C for 30 min resulted in formation of bimodal microstructure. Consequently, fatigue strength of annealed specimens was low.

Anglický abstrakt

Effect of cyclic loading and thermal exposition on microstructure of bulk ultrafinegrained Cu prepared by equal channel angular pressing was experimentally investigated by means of electron backscattering diffraction and by transmission electron microscopy. Stability of the microstructure under stress-controlled cyclic loading with a tensile mean stress of 200 MPa was shown to be high. Neither dynamic grain coarsening nor development of bimodal microstructure was observed. However, annealing at 250 C for 30 min resulted in formation of bimodal microstructure. Consequently, fatigue strength of annealed specimens was low.

Klíčová slova

equal channel angular pressing, fatigue, stability of microstructure, ultrafine-grained copper

Klíčová slova v angličtině

equal channel angular pressing, fatigue, stability of microstructure, ultrafine-grained copper

Autoři

KUNZ, L.; LUKÁŠ, P.; PANTĚLEJEV, L.; MAN, O.

Rok RIV

2012

Vydáno

01.12.2011

Nakladatel

Blackwell Publishing Ltd

Místo

New Delhi

ISSN

0039-2103

Periodikum

STRAIN

Svazek

47

Číslo

6

Stát

Spojené království Velké Británie a Severního Irska

Strany od

476

Strany do

482

Strany počet

7

BibTex

@article{BUT48103,
  author="Ludvík {Kunz} and Petr {Lukáš} and Libor {Pantělejev} and Ondřej {Man}",
  title="Stability of Microstructure of Ultrafine-Grained Copper Under Fatigue and Thermal Exposition",
  journal="STRAIN",
  year="2011",
  volume="47",
  number="6",
  pages="476--482",
  issn="0039-2103"
}