The influence of microstructure and phase composition of AlCrFe2Ni2Mox medium-entropy alloys on spontaneous corrosion in 0.1 M H2SO4 at 25 °C and 50 °C

doi:10.1016/j.intermet.2026.109278

The influence of microstructure and phase composition of AlCrFe2Ni2Mox medium-entropy alloys on spontaneous corrosion in 0.1 M H2SO4 at 25 °C and 50 °C

2026-03-31

0

PRE

AI

M

Marzena Mitoraj-Królikowska *

DOI：10.1016/j.intermet.2026.109278

Original

Original request for help

Save

Abstract

En 中文

• Molybdenum significantly influences the phase composition and microstructure of AlCrFe2Ni2Mox alloys. • Corrosion of AlCrFe2Ni2Mox alloys proceeds by sequential dissolution of the BCC-B2 phase followed by FCC or σ phase. • Degradation of AlCrFe2Ni2Mox alloys at 50 °C is accelerated and accompanied by redeposition of Mo-containing species. • The Mo-rich layer is unprotective and forms as a result of electrostatic attraction between the alloy surface and Mo-containing ions.

Keywords:

Molybdenum

Phase composition

Microstructure

Corrosion

Medium-entropy alloys

The influence of microstructure and phase composition of AlCrFe2Ni2Mox medium-entropy alloys on spontaneous corrosion in 0.1 M H2SO4 at 25 °C and 50 °C

Abstract

Journal

Organization