EFFECT OF INCUBATION PROCESS ON LOW TEMPERATURE COMBUSTION SYNTHESIS OF Fe-Ti-C SYSTEM WITH ELECTRIC FIELD

Using Gleeble-1500D, the effect of incubation process on the low temperature combustion synthesis process of Fe-Ti-C system under several technological conditions was studied. The results show that the ignition temperature of Fe-Ti-C system can be decreased greatly under the action of electric field and great thermal density, and the ignition temperature is 390~570 ℃ under different technological conditions. Moreover, the process of incubation 2 minutes at 200 ℃ has a great influence on the low temperature combustion synthesis of the system, both the ignition temperature and the highest temperature of the compact with incubation at 200 ℃ are higher than that of the compact without incubation. And the results of X-ray diffraction for synthesized products show that the products of the compact with incubation at 200 ℃ consist of TiC and Fe, however, the products of the compact without incubation consist of TiC , Fe and a little Fe₂Ti.