Structure-properties relationship in TRIP type bainitic ferrite steel austemp…

Abstract Background: Attractive properties of TRIP-type bainitic ferrite (TBF) steel ascribe to its unique microstructure of lath structure bainitic ferrite matrix and interlath retained austenite films. This work is concerned with obtaining ultra high-strength hot forged TBF steel with high elongation and excellent strength-elongation balance. Methods: The effect of austempering temperatur…