Publication detail

The Optimization of Mechanical Alloying Conditions of Powder for the Preparation of a Fe-10Al-4Cr-4Y(2)O(3) ODS Nanocomposite

SVOBODA, J. GAMANOV, Š. BÁRTKOVÁ, D. LUPTÁKOVÁ, N. BOŘIL, P. JARÝ, M. HOLZER, J. MAŠEK, B.

Original Title

The Optimization of Mechanical Alloying Conditions of Powder for the Preparation of a Fe-10Al-4Cr-4Y(2)O(3) ODS Nanocomposite

Type

journal article in Web of Science

Language

English

Original Abstract

Mechanical alloying (MA) of powders represents the first processing step in the production of oxide dispersion-strengthened (ODS) alloys. MA is a time and energy-consuming process also in the production of Fe-10Al-4Cr-4Y(2)O(3) creep and oxidation-resistant ODS nanocomposite, denoted as the FeAlOY, and it deserves to be optimized. MA is performed at two different temperatures at different times. The powder after MA, as well as the microstructure and high-temperature strength of the final FeAlOY, are characterized and the optimal MA conditions are evaluated. The obtained results show that the size distribution of the powder particles, as well as the dissolution and homogenization of the Y2O3, becomes saturated quite soon, while the homogenization of the metallic components, such as Al and Cr, takes significantly more time. The high-temperature tensile tests and grain microstructures of the secondary recrystallized FeAlOY, however, indicate that the homogenization of the metallic components during MA does not influence the quality of the FeAlOY, as the matrix of the FeAlOY is sufficiently homogenized during recrystallization. Thus, the conditions of MA correspond to sufficient dissolution and homogenization of Y2O3 and can be considered the optimal ones.

Keywords

oxide dispersion strengthened (ODS) alloy; mechanical alloying (MA); powder hot consolidation by rolling; strength at 1100 degrees C; nanocomposite

Authors

SVOBODA, J.; GAMANOV, Š.; BÁRTKOVÁ, D.; LUPTÁKOVÁ, N.; BOŘIL, P.; JARÝ, M.; HOLZER, J.; MAŠEK, B.

Released

17. 12. 2022

Publisher

MDPI

Location

BASEL

ISBN

1996-1944

Periodical

Materials

Year of study

15

Number

24

State

Swiss Confederation

Pages count

14

URL

https://www.mdpi.com/1996-1944/15/24/9034

BibTex

@article{BUT182447,
  author="Jiří {Svoboda} and Štěpán {Gamanov} and Denisa {Bártková} and Natália {Luptáková} and Petr {Bořil} and Milan {Jarý} and Jakub {Holzer} and Bohuslav {Mašek}",
  title="The Optimization of Mechanical Alloying Conditions of Powder for the Preparation of a Fe-10Al-4Cr-4Y(2)O(3) ODS Nanocomposite",
  journal="Materials",
  year="2022",
  volume="15",
  number="24",
  pages="14",
  doi="10.3390/ma15249034",
  issn="1996-1944",
  url="https://www.mdpi.com/1996-1944/15/24/9034"
}