采用应力松弛方法研究了钒氮微合金钢中V(C,N)在奥氏体区的等温析出行为,证实了动力学计算模型的模拟结果.结果表明,试验钢的析出-温度-时间(PTT)曲线呈典型的"C"形,本试验条件下析出开始时间最短的"鼻子"温度为850℃左右,与模型计算得到的820℃相差很小.钢中氮含量对PTT曲线形状有较大影响,随着氮含量的增加C曲线向左移动,这与模型计算结果非常吻合.
参考文献
| [1] | K.INOUE;N.ISHIKAWA;I.OHNUMA .Calculation of Phase Equilibria between Austenite and (Nb, Ti, V)(C,N) in Microalloyed Steels[J].ISIJ International,2001(2):175-182. |
| [2] | 雍岐龙.钢铁材料中的第二相[M].北京:冶金工业出版社,2006 |
| [3] | Robson J D;Prangnell P B .Modelling A13Zr Dispersoid Precipitation in Multicomponent Aluminium Alloys[J].Materials Science and Engineering,2003,352 A(01):240. |
| [4] | N. Kamp;A. Sullivan;R. Tomasi .Modelling of heterogeneous precipitate distribution evolution during friction stir welding process[J].Acta materialia,2006(8):2003-2014. |
| [5] | WANG Jian-hua;LU Xiao-gang;Sundman B et al.Thermodynamic Reassessment of the Au-Te System[J].Journal of Alloys and Compounds,2006,407(01):106. |
| [6] | 王昭东,曲锦波,刘相华,王国栋.松弛法研究微合金钢碳氮化物的应变诱导析出行为[J].金属学报,2000(06):618-621. |
| [7] | 刘胜新,陈永,刘国权,李庆奎,牛济泰,关绍康.用应力松驰法研究微合金钢碳氮化物的应变诱导析出行为[J].机械工程材料,2006(10):84-87. |
| [8] | W.P.SUN .Comparison between Static and Metadynamic Recrystallization-An Application to the Hot Rolling of Steels[J].ISIJ International,1997(10):1000-1009. |
| [9] | 苑少强 .弛豫-析出-控制相变工艺对微合金钢中析出行为的影响[D].北京科技大学,2004. |
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