The Effect of Mo in Si-Mn Nb Bearing TRIP Steels

Experimental studies were performed to determine the effect of Mo in Si-Mn TRIP steels, as well as its potential for reducing the levels of Si. Three compositions were investigated. Bainite transformation conditions were investigated on the final mechanical properties. Results revealed that Mo has an important retardation effect on the formation of both ferrite and pearlite. The Mo and reduced Si level steel generated excellent mechanical properties (as high as: UTS=1269, T.El.=36%) in the range observed by previous investigators.