Results of the composition analysis reveal that the primary cause to the fracture is the composition segregation of the wire .
成分分析结果表明，心部薄弱环节主要起因于线材中心的成分偏析。
2
Results show that the primary cause to the laminar defect of the umbrella bone steel in the process of cold bending to U-shape is the severe carbon segregation in the steel band.
结果表明，钢带中部严重的碳偏析是导致在冷弯成U形伞骨时，形成钢带分层的主要原因。
3
The segregation of the alloying elements is calculated during both primary precipitation and eutectic solidification. The carbon segregation is calculated using the lever rule.