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Thermodynamics of Titanium, Nitrogen and TiN Formation in Liquid Iron

机译:液态铁中钛,氮和TiN形成的热力学

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Thermodynamics of Titanium, nitrogen and TiN formaTion in liquid iron was invesTigated using the metal-nitride-gas equilibraTion under different nitrogen parTial pressures in the temperature range of 1 873-1 973 K. The nitrogen solubility in liquid iron increased with increasing Titanium content. Pure solid TiN was formed at criTical contents of Titanium and nitrogen in liquid iron. The experimental results were thermodynamically analyzed using Wagner's interacTion parameter formalism to determine the first-order interacTion parameter between Titanium and nitrogen, the first-order self interacTion parameter of Titanium, and the equilibrium constant for the dissoluTion of pure solid TiN in liquid iron given as follows.rne_N~(Ti)=-8 507/T+4.18,e_(Ti)~N=-29110/T + 14.3 e_(Ti)~(Ti)=0.048(1873-1973 K)rnTiN(s)=Ti+N log K_(TiN)=-15 780/T + 5.63.
机译:使用金属-氮化物-气体平衡条件,在温度范围为1 873-1 973 K的不同氮气压力下,研究了液态铁中钛,氮和TiN的热力学。随着钛含量的增加,液态铁中的氮溶解度也随之增加。在液态铁中钛和氮的临界含量下形成纯固态TiN。用Wagner相互作用参数形式主义对实验结果进行热力学分析,确定钛与氮之间的一阶相互作用参数,钛的一阶自相互作用参数以及纯固态TiN在液态铁中的溶解平衡常数,给出为rne_N〜(Ti)=-8 507 / T + 4.18,e_(Ti)〜N = -29110 / T + 14.3 e_(Ti)〜(Ti)= 0.048(1873-1973 K)rnTiN(s)= Ti + N log K_(TiN)=-15 780 / T + 5.63。

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