Effects of technologic parameters on combustion synthesis of Fe-Ti-C system under action of an electric field

Using the thermal simulation instrument Gleeble, the effects of technologic parameters such as pressure and the process of heat preservation on combustion synthesis of Fe-Ti-C system under the action of an electric field were studied. A series of research, such as temperature analysis on combustion synthesis of the system and X-ray diffraction (XRD) analysis and scanning electron microscope (SEM) analysis of products, show that both the ignition temperature and the highest temperature of the compact with heat preservation at 200 deg C are higher than that of the compact without heat preservation, the products of the compact with heat preservation at 200 deg C consist of TiC and Fe. However, the products of the compact without heat preservation consist of TiC, Fe and a little Fe(2)Ti. The size of the compact with heat preservation at 200 deg C is smaller than that of the compact without heat preservation, a small pressure will cause the decreasing of ignition temperature and small size of TiC, the pressure has