This study examines how molybdenum and heat treatment alter corrosion resistance and physical-mechanical properties in ferritic steel composites.
The structure, phase composition, physical-mechanical properties and corrosion resistance of a dispersion-strengthened composite material produced by hot pressing (1050 °C, 30 MPa, 30 min) of powders of high-alloy ferritic steel (Fe is a base, Cr - 30%, C - 0.2% C) and molybdenum in an amount of 1, 5, 10% have been studied. The maximum compressive strength 1815±3 MPa was obtained for the composite with 10% Mo. After quenching from 1050 °C, the γ-phase (Fe-Cr-Mo) was absent in the composite structure, while the strength decreased to 1656±21 MPa, and the residual deformation (shortening) was by a factor of 2.5-3 higher.
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Ivannikov et al. (2022) studied this question.
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