In the deformation process, pearlite colony rotate and aligned to the drawing axis.Cementite plates is bend, cut and drawn ,and the dissolution of cementite occur in heavily deformation.

• 变形过程中珠光体团发生转动，取向与拉拔轴线趋于一致，渗碳体经历了弯曲、剪切、拉伸等变形，形变量较大时渗碳体大量溶解。