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分析了热连轧08F钢板表层晶粒异常粗化的原因.结果表明,粗大的铁素体晶粒是相变后的组织在高温卷取后发生异常长大的结果.这种晶粒长大现象与生产工艺上的高温卷取和较低的终轧温度相关.
The reason for the abnormal grain coarsening on the surface of 08F steel in hot tandem rolling was analyzed.The results show that the coarse ferrite grain is the result of the abnormal growth of the microstructure after phase change after coiling at high temperature.The grain growth The phenomena are related to the high temperature coiling on the production process and to the lower finishing temperature.