Fe-Al-Si-Type Iron Aluminides: On the Strengthening by Refractory Metals Borides.

The effect of boron addition into Fe-28Al-5Si-X (X = -, 2Mo, or 2Ti) on the structure and high-temperature yield stress was investigated. Generally, the alloying of binary FeAl-type iron aluminides by silicon significantly improves high-temperature mechanical properties by solid-solution strengthening. On the other hand, the workability and ductile properties at room or slightly elevated temperatures get worse with the increasing silicon content.

Effect of Higher Silicon Content and Heat Treatment on Structure Evolution and High-Temperature Behaviour of Fe-28Al-15Si-2Mo Alloy.

This paper describes the structure and properties of cast FeAl-based alloy doped with 15 at. % of silicon and 2 at. % of molybdenum.

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

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 °C for 100 h) annealing was performed for the achievement of structural stability.