Modelling microstructural development during hot rolling
Modelling microstructural development during hot rolling
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DOI：
10.1179/mst.1990.6.11.1072
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发表时间：
1990-11
影响因子：
1.8
通讯作者：
C. Sellars
中科院分区：
文献类型：
--
作者：
C. Sellars
简要地讨论了在工业热轧过程中对显微组织的孔型发展进行计算机模拟的原因，并概述了模拟的原则。静态再结晶动力学，再结晶晶粒尺寸和轧制道次的变量之间的定量关系进行了比较C-Mn钢和Al-1镁/商业铝，多道次轧制的后果进行了讨论。对于钢，奥氏体晶粒结构的晶粒尺寸和残余应变方面的描述导致模型预测与观察结果吻合良好，并且建模的值是良好建立的。对于铝，同样的方法被证明会导致异常，这表明需要对微观结构进行更复杂的描述。金属间化合物颗粒的可能作用进行了讨论。MST/1300
The reasons for computer modelling the pass-by-pass development of microstructure during industrial hot rolling operations are briefly considered, and the principles of modelling are outlined. Quantitative relationships between the kinetics of static recrystallisation, recrystallised grain size and the variables of a rolling pass are compared for C–Mn steel and for Al–1 Mg/commercial Al, and the consequences for multipass rolling are discussed. For the steel, description of austenite grain structure in terms of grain size and residual strain leads to model predictions in good agreement with observation, and the value of modelling is well established. For aluminium, the same approach is shown to lead to anomalies, indicating that a more sophisticated description of microstructure is required. The possible roles of intermetallic particles are discussed. MST/1300