Detail publikačního výsledku

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

PANTĚLEJEV, L.; ŠTĚPÁNEK, R.; MAN, O.

Originální název

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

Anglický název

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

Druh

Článek WoS

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.

Anglický 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

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

Klíčová slova v angličtině

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

Autoři

PANTĚLEJEV, L.; ŠTĚPÁNEK, R.; MAN, O.

Rok RIV

2016

Vydáno

09.07.2015

Nakladatel

Elsevier

ISSN

1044-5803

Periodikum

MATERIALS CHARACTERIZATION

Svazek

107

Číslo

9

Stát

Spojené státy americké

Strany od

167

Strany do

173

Strany počet

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"
}