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研究了球墨铸铁的电磁性能，并着重对其影响因素进行了分析，为采用电磁法检测球墨铸铁组织结构提供了可靠的理论根据，实现了对铸态球铁基体组织的无损检测。
The electromagnetic properties of ductile cast iron were studied and the influencing factors were analyzed emphatically. The results provided a reliable theoretical basis for the detection of ductile iron structure by electromagnetic method, and the nondestructive testing of cast ductile iron matrix was realized.