Recrystallization and grain growth in hot rolling
Recrystallization and grain growth in hot rolling
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DOI：
10.1179/msc.1979.13.3-4.187
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发表时间：
1979-03
期刊：
影响因子：
--
通讯作者：
C. Sellars;J. Whiteman
中科院分区：
文献类型：
--
作者：
C. Sellars;J. Whiteman
简要回顾了低碳锰钢的物理冶金背景及热变形后再结晶和晶粒长大的现有数据。然后在计算过程中使用所导出的结构关系，该计算过程使得能够预测作为轧制计划中的温度、道次减少、速度和时间的函数的在轧制过程中的微观组织的演变。以中厚板轧制为例，结果表明，基础数据的不确定性不会对预测结果产生严重影响，而修改轧制规程则会导致轧制组织的重大差异。特别是，当再结晶时间与道次间隔时间相同时，轧制规程中存在临界区。在可以进行比较的地方，预测与实际观测结果是一致的。
The background physical metallurgy and the data available on recrystallization and grain growth after hot deformation of low-carbon manganese steel are briefly reviewed. The derived structural relationships are then used in a computing procedure which enables the evolution of microstructure during rolling to be predicted as a function of the temperatures, pass reductions, speeds, and times in rolling schedules. Plate rolling is considered as a specific example and it is shown that uncertainties in the basic data do not seriously affect the predictions whereas modifying the rolling schedules leads to major differences in the asrolled microstructures. In particular, there are critical regions in the rolling schedule when recrystallization times are of the order of the interpass times. Where comparisons can be made, the predictions are in agreement with practical observations.