【摘要】：應(yīng)用熱力學(xué)方法研究了簾線鋼凝固析出碳氮化鈦(Ti(CxN1-x))夾雜的性質(zhì),以及鋼坯加熱過程碳氮化鈦(Ti(CxN1-x))夾雜分解固溶的熱力學(xué)條件,并通過實(shí)驗(yàn)研究了試樣高溫加熱過程中碳氮化鈦夾雜的固溶現(xiàn)象。研究表明:1)簾線鋼C含量越高,凝固析出的碳氮化鈦夾雜中的x值越高;2)簾線鋼C含量越高,凝固過程碳氮化鈦夾雜析出就越早,析出碳氮化鈦夾雜時(shí)的凝固前沿溫度越低;3)82A鑄坯加熱到1 087℃以上時(shí),碳氮化鈦夾雜具備分解和固溶的熱力學(xué)條件;4)實(shí)驗(yàn)驗(yàn)證將鋼樣在1 150℃和1 250℃高溫加熱后,5μm以上的碳氮化鈦夾雜分別下降了55%和70.3%,而試樣在1 250℃高溫加熱后緩冷到1 000℃時(shí)發(fā)現(xiàn)2μm以下的小夾雜繼續(xù)在分解,而5μm以上的大夾雜在增加。
[Abstract]:The properties of Ti (C _ XN _ (1-x) inclusion precipitated by solidification of cord steel and the thermodynamic conditions for the decomposition and solution of Ti (C _ XN _ (1-x) inclusions during billet heating were studied by means of thermodynamic method. The solid solution phenomenon of carbon-nitride inclusion during high temperature heating was studied by experiments. The study shows that the higher the C content of 1) cord steel, the higher the x value of titanium carbide inclusion precipitated during solidification, the higher the C content of C content in the steel), and the earlier the carbon and nitride inclusions are precipitated during solidification. The lower the solidification front temperature of titanium carbonitride inclusion is, the lower the solidification front temperature is when 82A billet is heated to more than 1087 鈩，

本文編號(hào)：2124284