The effect of ternary additions on the vacancy hardening of FeAl

On the path dependence of the thermal vacancy concentration in stoichiometric FeAl

“…The Burgers vectors of the dislocations following both heat treatments were < 001 > . This is consistent with prior studies of stoichiometric FeAl following similar heat treatments [6,14,15]. It is known that in iron-rich alloys, some dislocations with < 111 > Burgers vectors may also form during heat treatments designed to lower the vacancy concentration, but such defects were not observed here [16][17][18][19].…”

Influence of Cr addition on the defect structure of Fe–Al alloys

“…Particularly, the knowledge of the Cr site preference is very important to understand the changes in the mechanical behaviour of the ternary alloys. It has been found by using theoretical [6e9] and experimental [10,11] techniques that Cr atoms prefer Al sites in B2 FeeAl alloys. However, Munroe and Kong [2] have determined that Cr atoms evenly occupy substitutional sites in both, Fe and Al sublattices for the Fe 45 Al 50 Cr 5 and Fe 49 Al 50 Cr 1 alloys.…”

Effect of ternary additions of iron on microstructure and microhardness of the intermetallic NiAl in reactive sintering

“…Therefore, many attempts to improve those properties by the addition of ternary elements (metallic or not) have been carried out [6][7][8].…”