摘要
采用Gleeble-1500D热模拟机,在电场作用下,研究保温过程对几种工艺条件下Fe-Ti-C体系压坯低温燃烧合成过程的影响。结果表明:在电场和大热流密度的共同作用下,体系的点火温度得到大幅度降低,且随工艺条件的不同在390～570℃范围内变化;200℃保温2min过程对体系的低温燃烧合成过程有较大的影响,即200℃保温压坯的点火温度和实际所达到的最高温度均高于相应的未保温压坯。合成产物的XRD结果表明:200℃保温压坯的合成产物由TiC和Fe组成,而未保温压坯的合成产物中除了TiC和Fe外,还残留有少量Fe2Ti相。
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 Fe_2Ti.
出处
《钢铁钒钛》
CAS
北大核心
2004年第2期52-56,70,共6页
Iron Steel Vanadium Titanium
基金
武器装备部预研基金项目资助(51412020501SC0106)。
关键词
Fe-Ti-C体系
低温燃烧合成
电场
热流密度
Fe-Ti-C system
low temperature combustion synthesis
electric field
thermal density
