Publication detail

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

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

Original Title

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

Type

journal article in Web of Science

Language

English

Original Abstract

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.

Keywords

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

Authors

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

Released

1. 2. 2017

Publisher

TAYLOR & FRANCIS LTD

Location

ABINGDON

ISBN

0950-0839

Periodical

PHILOSOPHICAL MAGAZINE LETTERS

Year of study

97

Number

10

State

United Kingdom of Great Britain and Northern Ireland

Pages from

379

Pages to

385

Pages count

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"
}