Publication detail

The Effect of Simultaneous Si and Ti/Mo Alloying on High-Temperature Strength of Fe3Al-Based Iron Aluminides

ZÁDĚRA, A. et al.

English title

The Effect of Simultaneous Si and Ti/Mo Alloying on High-Temperature Strength of Fe3Al-Based Iron Aluminides

Type

journal article in Web of Science

Language

en

Original abstract

The effect of phase composition and morphology on high-temperature strength in the compression of Fe-Al-Si-based iron aluminides manufactured by casting was investigated. The structure and high-temperature strength in the compression of three alloys-Fe28Al5Si, Fe28Al5Si2Mo, and Fe28Al5Si2Ti-were studied. Long-term (at 800 degrees C for 100 h) annealing was performed for the achievement of structural stability. The phase composition and grain size of alloys were primarily described by means of scanning electron microscopy equipped with energy dispersive analysis and Electron Backscatter Diffraction (EBSD). The phase composition was verified by X-ray diffraction (XRD) analysis. The effect of Mo and Ti addition as well as the effect of long-term annealing on high-temperature yield stress in compression were investigated. Both additives-Mo and Ti-affected the yield stress values positively. Long-term annealing of Fe28Al5Si-X iron aluminide alloyed with Mo and Ti deteriorates yield stress values slightly due to grain coarsening.

English abstract

The effect of phase composition and morphology on high-temperature strength in the compression of Fe-Al-Si-based iron aluminides manufactured by casting was investigated. The structure and high-temperature strength in the compression of three alloys-Fe28Al5Si, Fe28Al5Si2Mo, and Fe28Al5Si2Ti-were studied. Long-term (at 800 degrees C for 100 h) annealing was performed for the achievement of structural stability. The phase composition and grain size of alloys were primarily described by means of scanning electron microscopy equipped with energy dispersive analysis and Electron Backscatter Diffraction (EBSD). The phase composition was verified by X-ray diffraction (XRD) analysis. The effect of Mo and Ti addition as well as the effect of long-term annealing on high-temperature yield stress in compression were investigated. Both additives-Mo and Ti-affected the yield stress values positively. Long-term annealing of Fe28Al5Si-X iron aluminide alloyed with Mo and Ti deteriorates yield stress values slightly due to grain coarsening.

Keywords in English

Fe-Al-Si cast alloys; Ti and Mo alloying; long-term annealing; microstructure; high-temperature strength in compression

Released

03.08.2020

Publisher

MDPI

Location

BASEL

ISSN

1420-3049

Volume

25

Number

18

Pages from–to

1–11

Pages count

11

BIBTEX


@article{BUT168910,
  author="Věra {Vodickova} and Věra {Vodičková} and vera {vodickova} and Martin {Švec} and Martin {Švec} and Pavel {Hanus} and Pavel {Novák} and Antonín {Záděra} and Vojtěch {Keller} and Vojtěch {Keller} and Petra {Prokopčaková} and Petra {Prokopčáková},
  title="The Effect of Simultaneous Si and Ti/Mo Alloying on High-Temperature Strength of Fe3Al-Based Iron Aluminides",
  year="2020",
  volume="25",
  number="18",
  month="August",
  pages="1--11",
  publisher="MDPI",
  address="BASEL",
  issn="1420-3049"
}