CAJ | 학술논문

应用热力学方法研究了帘线钢凝固析出碳氮化钛（Ti（C狓N1－狓））夹杂的性质，以及钢坯加热过程碳氮化钛（Ti（C狓N1－狓））夹杂分解固溶的热力学条件，并通过实验研究了试样高温加热过程中碳氮化钛夹杂的固溶现象。研究表明：1）帘线钢 C 含量越高，凝固析出的碳氮化钛夹杂中的狓值越高；2）帘线钢 C 含量越高，凝固过程碳氮化钛夹杂析出就越早，析出碳氮化钛夹杂时的凝固前沿温度越低；3）82A 铸坯加热到1087℃以上时，碳氮化钛夹杂具备分解和固溶的热力学条件；4）实验验证将钢样在1150℃和1250℃高温加热后，5μm 以上的碳氮化钛夹杂分别下降了55％和70．3％，而试样在1250℃高温加热后缓冷到1000℃时发现2μm 以下的小夹杂继续在分解，而5μm以上的大夹杂在增加。
응용열역학방법연구료렴선강응고석출탄담화태（Ti（C피N1－피））협잡적성질，이급강배가열과정탄담화태（Ti（C피N1－피））협잡분해고용적열역학조건，병통과실험연구료시양고온가열과정중탄담화태협잡적고용현상。연구표명：1）렴선강 C 함량월고，응고석출적탄담화태협잡중적피치월고；2）렴선강 C 함량월고，응고과정탄담화태협잡석출취월조，석출탄담화태협잡시적응고전연온도월저；3）82A 주배가열도1087℃이상시，탄담화태협잡구비분해화고용적열역학조건；4）실험험증장강양재1150℃화1250℃고온가열후，5μm 이상적탄담화태협잡분별하강료55％화70．3％，이시양재1250℃고온가열후완랭도1000℃시발현2μm 이하적소협잡계속재분해，이5μm이상적대협잡재증가。
The properties of titanium carbonitride (Ti(CxN1 -x))inclusions precipitated during solidification of tire cord steel,as well as thermodynamic conditions of decomposition and solid solution of titanium carbonitride (Ti (CxN1 -x ))inclusions in the billet heating process are studied by thermodynamics.The solid solution phenomenon of titanium carbonitride inclusions in the high temperature heating process is studied with lab experiment.The results show 1 )The higher the carbon content in tire cord steel,the higher the value of x in titanium carbonitride inclusions;2 )The higher the carbon content in tire cord steel,the earlier the titanium carbonitride inclusions precipitated during solidification process,the lower solidfication front temperature of precipitation of titanium carbonitride inclusions.3 ) When heated to 1 087 ℃,the titanium carbonitride inclusions of 82A billet possess the thermodynamic conditions of decomposition and solid solution;4 )When heated to 1 150 ℃ and 1 250 ℃,the content of titanium carbonitride inclusions with size more than 5 μm are decreased by 55% and 70.3% respectively;However the small inclusions with size less than 2 μm continue to decompose,and the content of inclusions with size more than 5 μm increases when the sample is heating at 1 250 ℃ for two hours then furnace cooling to 1 000 ℃.