Effect of Cooling Rate and Vanadium Content on the Microstructure and Hardness of Medium Carbon Forging Steel

Microstructural Evolution of Nb–V–Mo and V Containing TRIP-assisted Steels during Thermomechanical Processing

“…229 to 2400 precipitate µm -3 ) was too low to significantly increase the hardness of steel. These results are in agreement with the findings of Hui et al, who also reported on the effect of cooling rate on the V(C,N) precipitation hardening in microalloyed medium carbon content steels [41] . They showed no considerable V(C,N) precipitation hardening in steels with acicular ferrite matrix after cooling at a rate of 10 °C/s.…”

High cycle fatigue behavior of V-microalloyed medium carbon steels: A comparison between bainitic and ferritic-pearlitic microstructures

“…Too low phase transformation temperature makes it is hard for carbon element to diffusion. As a result, it is difficult for the precipitation of fine V(C,N) in bainitic ferrite compared to that in proeutectoid and pearlitic ferrite in ferritic-pearlitic steel (Fig.4) [34,35]. Fine V(C,N)…”

Effect of Cooling Condition on Fatigue Behavior of the Forged EA4T Steel

“…Moreover, superior impact toughness was found with 7 C s À1 . However, Hui et al [21] revealed that the formation of acicular ferrite was affected by the vanadium content in medium-carbon forging steel and the cooling rate. Moreover, Gunduz and coworkers revealed that vanadium was beneficial to strength and hardness.…”