AUSTENITE REVERSION IN COLD-FORMED 18-WT-PERCENT-NI 350-GRADE MARAGING-STEEL

Austenite reversion as a function of deformation processes has been in vestigated in an 18 wt-%Ni 350 grade maraging steel. The results repor ted show that the degree and type of deformation imparted to martensit e influences the amount of reverted austenite obtained following aging . The validity of the X-ray diffraction technique in determining the r everted austenite content is discussed with reference to texture incor porated during cold forming. Transmission electron microscopy was carr ied out to study the partitioning of solute during austenite reversion .