采用Thermo-Calc软件、热模拟及扫描电镜研究高Ti-Q550钢中微合金的析出规律.采用Thermo-Calc 软件计算不同温度下Nb、Ti的析出规律,钛含量对钢中Nb、Ti析出规律及A3的影响.采用热模拟和扫描电镜研究钢中铌相的析出温度.计算结果表明,钛相的析出温度为1 498℃,铌相析出温度为1 251℃；随着钢中钛含量的增加,(Nb,Ti)C相析出温度和A3温度升高,但铌在钢中的固溶量降低；当钛的质量分数小于0.08％时,Ti(N,C)相析出温度随钛含量增加而升高,但当钛的质量分数大于0.08％时,相析出温度基本不变,钛在钢中的固溶量随钛含量增加而增加.
参考文献
| [1] | 于庆波,孙莹,李子林,韦弦,刘相华.微量固溶Nb在钢中的作用[J].钢铁,2006(02):59-62. |
| [2] | Michael T N;John G S;David K M .Titanium Nitride Precipitation Behavior in Thin-Slab Cast High-Strength Low-Alloyed Steels[J].Metallurgical and Materials Transactions,2002,33A(10):3099. |
| [3] | 丁文华,李淼泉.合金元素和控轧控冷工艺在管线钢研制中的应用[J].材料导报,2007(09):67-70,76. |
| [4] | Djahazi M;He X L;Jonas J J.Nb(C,N) Precipitation and Austenite Recrystallization in Boron-Containing High-Strength Low-Alloy Steels[J].Metallurgical and Materials Transactions,1992(23):2111. |
| [5] | Liu W J.Computer Simulation of VC Precipitation at Moving γ/α Interfaces[J].Metallurgical and Materials Transactions,1993(24):2195. |
| [6] | 向嵩,刘国权,李长荣,王安东,韩庆礼.低碳钢碳氮析出物的热力学计算[J].北京科技大学学报,2006(09):818-822. |
| [7] | Vedani M;Mannucci A .Effect of Titanium Addition on Precipitate and Microstructural Control in C-Mn Microalloyed Steels[J].ISIJ International,2002,42(12):1520. |
| [8] | Sharama R C;Lakshmanan V K;Kirkaldy J S.Solubility of Niobium Carbide and Niobium Carbonitride in Alloyed Austenite and Ferrite[J].Metallurgical and Materials Transactions,1984(15):545. |
| [9] | Okaguchi S;Hashimoto T.Computer Model for Prediction of Carbonitride Precipitation During Hot Working in Nb-Ti Bearing HSLA Steels[J].ISIJ International,1992(32):283. |
| [10] | Inoue K;Ishikawa N;Ohtani H.Calculation of Phase Equilibria Between Austenite and (Nb,Ti,V) (C,N) in Microallyed Steels[J].ISIJ International,2001(41):175. |
| [11] | Andersson JO.;Helander T.;Hoglund LH.;Shi PF.;Sundman B. .THERMO-CALC & DICTRA, computational tools for materials science[J].Calphad: Computer Coupling of Phase Diagrams and Thermochemistry,2002(2):273-312. |
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