Research on Preparation of Ti(C,N) by the Carbon and Nitrogen Treatment of the Deep Reduced Slag

Abstract:

The carbonitriding treatment of deep reduced slag obtained in the smelting process of the non blast furnace with the vanadic titanomagnetite from PanZhiHua were carried out in a high temperature carbolic pipe furnace with nitrogen gas in order to obtain Ti(C,N). The results are found: there are a few of Ti (C, N) presented in the carbonitriding reaction production with theoretical amount of carbon at 1400°C; the content of Ti (C, N) increases with temperature; the carbonitriding reaction tends to finish at 1500°C; the average size of Ti(C,N) particles are 7.8452μm and the maximum is 21μm above 1600°C; the content of N in the Ti (C, N) decrease with temperature below 1400°C and that of N increase and the change of C content is opposite above 1400°C; To increase appropriately carbon amount can promoto the carbonitride reaction which is benefit for the formation and grow of the Ti (C, N); when the amount of carbon beyond the theoretical value, the maximum and average size of grains obtained is smaller. It shows that the bigger Ti(C,N) grains can be obtained and the high temperature is very important for the carbonitride treatment of the deep reduced slag to obtain Ti (C, N).

• Periodical: Applied Mechanics and Materials (Volumes 295-298)
• Pages: 1463-1471
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.295-298.1463
• Online since: February 2013
• Authors: Liang Li, Jun Wang, Xing Ping Fan
• Keywords: Carbonitriding, Deep Reduced Slag, Titanium Carbonitride

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