Phase composition and microhardness of rapidly quenched Al–Fe alloys after high pressure torsion deformation

Age Hardening in Ultrafine-Grained Al-2 Pct Fe Alloy Processed by High-Pressure Torsion

“…In recent years, the capability of producing bulk Al-Fe alloys with supersaturation of Fe by HPT processing has been reported in a cast Al-11 pct Fe alloy [35] and Al-2, 8 and 10 pct Fe alloys initially processed by RQ and MA. [36] Significant increases in microhardness (by~50 HV in 2 pct Fe and by>100 HV in 8 to 11 pct Fe) were shown by aging at temperatures ranging from 373 K to 473 K (100°C to 200°C). However, no systematic study of the aging behavior of the HPT-processed Al-Fe alloys has been carried out to date.…”

Powder consolidation of Al–10 wt% Fe alloy by High-Pressure Torsion

“…However, in particular, Fe has an interesting potential as reinforcement, since these intermetallics may provide resistance to high temperature deformation. In this sense, processing of powder mixtures of Al-Fe alloys has been studied in topics like rapid solidification [23][24][25], mechanical alloying [26][27][28][29][30] and their combinations with HPT [31][32][33]. Although some studies have applied HPT [31,32,[34][35][36] and ECAP [37] to bulk Al-Fe alloys, there are very few studies on the direct consolidation from elemental powders of Al and Fe.…”

Nanocomposites and an extremely hard nanocrystalline intermetallic of Al–Fe alloys prepared by mechanical alloying

“…High pressure torsion (HPT) technique has recently been developed as a method of bulk nanostructured materials preparation [18,19]. Stolyarov et al [18] have reported the effect of HPT on the structure of Al-Fe alloys prepared by various techniques, such as conventional casting with slow and accelerated cooling, RSP and MA.…”