Ge Yunzong, Wang Jianjun, Yan Huicheng, Qiu Shengtao. Thermodynamic Analysis and Control of the Precipitation of TiN in Titanium-bearing Gear Steel[J]. IRON STEEL VANADIUM TITANIUM, 2012, 33(5): 50-54.
Citation:
Ge Yunzong, Wang Jianjun, Yan Huicheng, Qiu Shengtao. Thermodynamic Analysis and Control of the Precipitation of TiN in Titanium-bearing Gear Steel[J]. IRON STEEL VANADIUM TITANIUM, 2012, 33(5): 50-54.
Ge Yunzong, Wang Jianjun, Yan Huicheng, Qiu Shengtao. Thermodynamic Analysis and Control of the Precipitation of TiN in Titanium-bearing Gear Steel[J]. IRON STEEL VANADIUM TITANIUM, 2012, 33(5): 50-54.
Citation:
Ge Yunzong, Wang Jianjun, Yan Huicheng, Qiu Shengtao. Thermodynamic Analysis and Control of the Precipitation of TiN in Titanium-bearing Gear Steel[J]. IRON STEEL VANADIUM TITANIUM, 2012, 33(5): 50-54.
The themodynamic analysis on titanium nitride’s formation was carried out in order to control its precipitation in the tested steel.The results show that no TiN inclusions can be found in molten steel at temperature above liquidus;during solidification of molten steel,thanks to the enrichment of Ti and N in the two-phase region,the formation reaction of TiN proceeds.So the best way to reduce precipitation of TiN in practical production is to control Ti and N contents in steel,and quicken the molten steel through two-phase region（1 728～1 787 K） by increasing secondary cooling rate during continuous casting.Calculation suggests that the value should be controlled below 7.04×10-5 to ensure no precipitation of TiN inclusion in the tested steel during solidification process.
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