Publication detail

Mechanisms of plastic deformation and fracture in coarse grained Fe-10Al-4Cr-4Y2O3 ODS nanocomposite at 20-1300°C

GAMANOV, Š. LUPTÁKOVÁ, N. BOŘIL, P. JARÝ, M. MAŠEK, B. DYMÁČEK, P. SVOBODA, J.

Original Title

Mechanisms of plastic deformation and fracture in coarse grained Fe-10Al-4Cr-4Y2O3 ODS nanocomposite at 20-1300°C

Type

journal article in Web of Science

Language

English

Original Abstract

The coarse-grained Fe-10Al-4Cr-4Y2O3ODS nanocomposite (denoted as FeAlOY) has been developed by the authors and shows promising potential for high-temperature structural applications at 1000-1300 & DEG;C. Compared to classical ODS alloys, the FeAlOY contains ten times higher volume fraction of the stable Y2O3 nanodispersion, which gives the alloy its high-temperature strength. Furthermore, the high content of Al in the matrix guarantees excellent oxidation resistance. In practice, one can expect that the FeAlOY is loaded in the temperature range of 20-1300 & DEG;C due to intermittent device operation. To ensure a safe operation, it is necessary to determine the tensile strength and ductility of the FeAlOY in the whole temperature range and detect the dominant mechanisms of strengthening, plastic deformation, and fracture in the characteristic temperature ranges. Above 1100 & DEG;C the FeAlOY reaches ultimate tensile strength of 100 MPa and plasticity of 1%. However, in the temperature range of 400-600 & DEG;C, the plasticity can climb above 40%. The achieved results can also be utilized for the design of the FeAlOY pieces shaping by hot pressing. & COPY; 2023 The Author(s). Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).

Keywords

Fe-Al based ODS alloy; Grain microstructure; Strength; Ductility

Authors

GAMANOV, Š.; LUPTÁKOVÁ, N.; BOŘIL, P.; JARÝ, M.; MAŠEK, B.; DYMÁČEK, P.; SVOBODA, J.

Released

1. 5. 2023

Publisher

Elsevier

Location

AMSTERDAM

ISBN

2214-0697

Periodical

Journal of Materials Research and Technology-JMR&T

Year of study

24

Number

1

State

Federative Republic of Brazil

Pages from

4863

Pages to

4874

Pages count

12

URL

https://www.sciencedirect.com/science/article/pii/S2238785423008256

Full text in the Digital Library

http://hdl.handle.net/11012/244938

BibTex

@article{BUT185428,
  author="Štěpán {Gamanov} and Natália {Luptáková} and Petr {Bořil} and Milan {Jarý} and Bohuslav {Mašek} and Petr {Dymáček} and Jiří {Svoboda}",
  title="Mechanisms of plastic deformation and fracture in coarse grained Fe-10Al-4Cr-4Y2O3 ODS nanocomposite at 20-1300°C",
  journal="Journal of Materials Research and Technology-JMR&T",
  year="2023",
  volume="24",
  number="1",
  pages="4863--4874",
  doi="10.1016/j.jmrt.2023.04.131",
  issn="2214-0697",
  url="https://www.sciencedirect.com/science/article/pii/S2238785423008256"
}