Mechanical behaviour of sintered P/M alloys is significantly influenced by the inherent porosity, whichneeds to be removed to a great extend. The present research work pertains to the study of thedensification behaviour of sintered low alloy P/M steels during a cold deformation by upsetting. Theinvestigation was performed to examine the densification and plastic deformation behaviour of the lowalloy steel P/M performs sintered at 1120°C and at 1120°C with following isothermal treatment at650-720°C. In the present work, analysis of a transformation kinetics of Astaloy Mo was carried out.Further, microstructural analysis was done on the cold worked preforms to correlate the deformationbehaviour with the metallurgical structure of the steel. The isothermal treated PM steel preformsexhibit the best densification and deformation behaviour under cold upsetting.
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