Investigation of the Influence of Cold-Treatment on Properties of Advanced High Strength Automotive Steels

Due to the moderate formability of low alloy high strength steels, (TRIP) steels called "transformation induced plasticity" have been developed. They are especially used in production automobile shock absorbers and beam supporting parts. The microstructure these consists distribution ferrite, bainite (5 - 10%) residual austenite phases matrix. generally provided by structure. During shaping, turns into martensite gives steel. Considering literature studies, it is pointed out that there a lack information about effect cold treatment on TRIP steels. For this reason, study, TRIP800 steel has maintained for two hours at various temperatures. Thus, mechanical properties changes samples were examined detail.