77MnA盘条断裂分析

Analysis on the Fracture of 77MnA Wire Rod

采用金相和扫描电镜断口分析方法 ,对 77MnA盘条在冷拉拔过程中断裂进行了分析 ,结果表明 。

The fracture of 77MnA wire rod in the cold drawing period is examined and analyzed by the fracture analytical method using the metallograph and scanning electron microscope. Results show that the primary cause to the fracture lies in the inner defects of the wire rod.