Detail publikačního výsledku

Kinetic study of static recrystallization in an Fe-Al-O ultra-fine-grained nanocomposite

BÁRTKOVÁ, D.; ŠMÍD, M.; MAŠEK, B.; ŠIŠKA, F.

Originální název

Kinetic study of static recrystallization in an Fe-Al-O ultra-fine-grained nanocomposite

Anglický název

Kinetic study of static recrystallization in an Fe-Al-O ultra-fine-grained nanocomposite

Druh

Článek WoS

Originální abstrakt

A nearly abrupt coarsening of grains is observed in a newly developed Fe-Al-O ultra-fine-grained nanocomposite with a significant volume fraction (4%) of alumina nano-precipitates. The microstructure of the alloy was analysed in different states (as-received and annealed) by means of scanning electron microscopy, transmission electron microscopy (TEM) and hardness. The initial grain size 150-200nm increases up to 50m during annealing 1000 degrees C/8h and thereafter demonstrates saturation. A linear correlation between volume fraction of coarse grains and hardness was found. It was identified by TEM that alumina nano-precipitates stabilize the dislocation microstructure against recovery very effectively and the grain coarsening is due to fast growth of very few dislocation free grains. Thus, the observed grain coarsening has the attributes of static recrystallization.

Anglický abstrakt

A nearly abrupt coarsening of grains is observed in a newly developed Fe-Al-O ultra-fine-grained nanocomposite with a significant volume fraction (4%) of alumina nano-precipitates. The microstructure of the alloy was analysed in different states (as-received and annealed) by means of scanning electron microscopy, transmission electron microscopy (TEM) and hardness. The initial grain size 150-200nm increases up to 50m during annealing 1000 degrees C/8h and thereafter demonstrates saturation. A linear correlation between volume fraction of coarse grains and hardness was found. It was identified by TEM that alumina nano-precipitates stabilize the dislocation microstructure against recovery very effectively and the grain coarsening is due to fast growth of very few dislocation free grains. Thus, the observed grain coarsening has the attributes of static recrystallization.

Klíčová slova

Recrystallization; dislocation structures; nanoscale precipitates; microstructure; abrupt grain coarsening

Klíčová slova v angličtině

Recrystallization; dislocation structures; nanoscale precipitates; microstructure; abrupt grain coarsening

Autoři

BÁRTKOVÁ, D.; ŠMÍD, M.; MAŠEK, B.; ŠIŠKA, F.

Rok RIV

2022

Vydáno

01.02.2017

Nakladatel

TAYLOR & FRANCIS LTD

Místo

ABINGDON

ISSN

0950-0839

Periodikum

PHILOSOPHICAL MAGAZINE LETTERS

Svazek

97

Číslo

10

Stát

Spojené království Velké Británie a Severního Irska

Strany od

379

Strany do

385

Strany počet

7

URL

https://www.tandfonline.com/doi/full/10.1080/09500839.2017.1378445

BibTex

@article{BUT177473,
  author="Bohuslav {Mašek} and Filip {Šiška} and Miroslav {Šmíd} and Denisa {Bártková}",
  title="Kinetic study of static recrystallization in an Fe-Al-O ultra-fine-grained nanocomposite",
  journal="PHILOSOPHICAL MAGAZINE LETTERS",
  year="2017",
  volume="97",
  number="10",
  pages="379--385",
  doi="10.1080/09500839.2017.1378445",
  issn="0950-0839",
  url="https://www.tandfonline.com/doi/full/10.1080/09500839.2017.1378445"
}