The Recrystallization Behavior of Fe-2%V Alloys and Fe-1%V-1%Cr Alloy

Abstract

Hardness measurements were carried out to study the recrystallization behavior around 700°C of these alloys, which were cold rolled after annealing for 2 hr at 910°C.
The time required for recrystallization of No. 1 (Fe-1.90 wt%V-0.007 wt%C-0.0048 wt%N) alloy is longer than that of No. 2 (Fe-0.97 wt%V-0.98 wt%Cr-0.006 wt%C-0.0030 wt%N) alloy and No. 3 (Fe-2.00 wt%V-0.006 wt%C-0.0034 wt%N) alloy.
These alloys quenched from 910°C show the age-hardening at 700°C which seems to be due to the precipitation of fine carbides or nitrides. Especially the increase in hardness of No. 1 alloy is large.
It seems likely that these precipitates have significant effects on the recrystallization behavior of these alloys. The marked retardation of recrystallization of No. 1 alloy seems to be interpreted by these precipitates.