Detail publikace

Thermal stability of bimodal microstructure in magnesium alloy AZ91 processed by ECAP

PANTĚLEJEV, L. ŠTĚPÁNEK, R. MAN, O.

Anglický název

Thermal stability of bimodal microstructure in magnesium alloy AZ91 processed by ECAP

Typ

Článek WoS

Jazyk

en

Originální abstrakt

The changes in microstructure of equal channel angular pressing (ECAP) processed magnesium alloy AZ91 during thermal exposure were studied in this paper. The microstructure stability was investigated by means of electron backscatter diffraction (EBSD), which allowed measuring the changes in grain size, mutual ratio of low-angle boundaries (LABs) to high-angle ones (HABs) and local lattice distortion evaluated by the kernel average misorientation (KAM) parameter. It was found experimentally that the threshold temperature at which significant grain coarsening takes place is 350 centigrade. No modification to mean grain diameter occur below this temperature, nonetheless, some changes in LAB and HAB fraction, as well as in local lattice distortion, can be observed.

Klíčová slova anglicky

Microstructural stability, AZ91 magnesium alloy, Equal channel angular pressing (ECAP), Kernel average misorientation (KAM), Electron backscatter diffraction (EBSD)

Vydáno

2015-07-09

Nakladatel

Elsevier

ISSN

1044-5803

Ročník

107

Číslo

9

Strany od–do

167–173

Počet stran

7

BIBTEX


@article{BUT111291,
  author="Libor {Pantělejev} and Roman {Štěpánek} and Ondřej {Man}",
  title="Thermal stability of bimodal microstructure in magnesium alloy AZ91 processed by ECAP",
  journal="Materials characterization",
  year="2015",
  volume="107",
  number="9",
  pages="167--173",
  doi="10.1016/j.matchar.2015.07.009",
  issn="1044-5803"
}