利用热模拟实验机Gleeble 3800结合锻造实验、显微组织观察、电子探针成分分析等方法研究了加热温度、变形温度、变形量、冷却速率对齿轮钢SAE8620H连铸坯表层区域和内部区域试样的带状组织的影响,结果表明,元素偏聚小的表层区域无带状组织形成,元素偏析明显的内层区域在适宜的条件下形成不同程度的带状组织,锰等元素的偏析是带状组织形成的必要条件,可以通过提高加热温度、增大变形量等方式减轻或降低带状组织.
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