钢的热加工性能是钢的热轧工艺设计的基础.奥氏体钢在热加工中涉及到众多的物理现象,如动态回复、动态再结晶、静态回复、亚动态再结晶、静态再结晶和晶粒长大.一个优秀的描述钢的热加工性能的数学模型可以优化热轧工艺,提高生产效率,改善产品质量.综述了奥氏体不锈钢在热加工中发生的各类物理现象及其相对应的数学模型,讨论了变形温度、变形参数与流变应力、再结晶以及再结晶晶粒度之间复杂的关系,并分析了在工业多道次轧制工艺中,如何应用这些数学模型模拟和预测轧钢过程中残余应变和其内部组织的演变过程.
参考文献
[1] | MCqueen H J;Yue S;Ryan N D et al.Hot working characteristics of steels in austenitlic state[J].Journal of Materials Processing Technology,1995,53:293. |
[2] | McQueen HJ.;Ryan ND. .Constitutive analysis in hot working[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,2002(1-2 Special Issue SI):43-63. |
[3] | Poliak E I;Jonas J J .Initiation of dynamic tecrystallization in constant strain rate hot deformation[J].ISIJ International,2003,43(05):684. |
[4] | Medina S F;Hernandez C A .Modelling of the dynamic recrystallizayion of austenite in low alloy and microalloyed steels[J].Acta Materialia,1996,44(01):165. |
[5] | 雍歧龙;马鸣图.微合金钢-物理和力学冶金[M].北京:机械工业出版社,1989:342. |
[6] | IIaria Salvatori;Tadanobu Inoue;Kotubu Nagai .Ualtra rain structure through dynamic recrystallization for type 304 stainless steel[J].ISIJ International,2002,42(07):744. |
[7] | Sung-Il Kim;Youngseog Lee;Byoung-Lok Jang .Modeling of recrystallization and austenite grain size for AISI 316 stainless steel and its application to hot bar rolling[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,2003(1/2):235-239. |
[8] | Uranga P.;Fernandez AI.;Lopez B.;Rodriguez-Ibabe JM. .Transition between static and metadynamic recrystallization kinetics in coarse Nb microalloyed austenite[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,2003(1/2):319-327. |
[9] | Bai D Q;Yue S;Jonas J.[A].Ottawa,Ontario,Canada,2000:669. |
[10] | Kowalski B;Sellars C M;Pietzyk M .Development of a computer code for the interpretation of results of hot plane strain compression tests[J].ISIJ International,2000,40:1230. |
[11] | Sellars C M .Modelling microstructural development during hot rolling[J].Materials Science and Technology,1990,6(11):1072. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分:
-
10%
-
20%
-
30%
-
40%
-
50%