Atomic scale investigation of boron nanosegregation in Fe Al intermetallics

Low energy–high flux nitrogen implantation of an oxide-dispersion-strengthened FeAl intermetallic alloy

“…Boron, zirconium and yttria containing binary B2 iron aluminides processed by mechanical alloying and subsequent thermal treatment lead to an oxide dispersion strengthened (ODS) intermetallic alloy of fine grain structure [1][2][3][4][5] showing -preferably in the absence of humidity-good mechanical properties [6][7][8] and oxidation resistance [9][10][11][12].…”

Characterization of complex planar faults in FeAl(B) alloys

“…Additionally Z contrast microscopy showed that the fault is aluminium depleted and it was suggested that CPF are associated with B segregation [17]. This finding was confirmed by field ion microscopy and 3D atom probe analysis [18,19]. It is worth noting that these defects were observed only in B containing FeAl based alloys with various compositions: Fe-35 at.% Al-0.5 at.%B [16], Fe-35 at.%Al-100 ppm.B [20], Fe-40 at.%Al-0.7 at.% C-0.5 at.%B [21] Fe-40 at.%Al-3.8 at.%Ni-150 ppm.B [19] and Fe-40 at.%Al-2.7 at.%Ni-150 ppm.B (present study and [20]).…”

Microstructure and mechanical properties of hot rolled Fe–40 at-%Al intermetallic alloys with Zr and B addition

“…According to Pang and Kumar,16 these complex stacking faults are bound by two 〈100〉 partial dislocations. The use of field ion microscopy, combined with three-dimensional atom probe analysis, by Cadel et al found them to be boron enriched and aluminium depleted 17. These complex stacking faults have also been observed in Fe 3 Al based alloys with boron additions 18…”