Solidification and composition segregation of billet are important factors which affect homogeneity of mechanical property of steel.
连铸坯的凝固组织和成分偏析是影响钢材力学性能均匀性的重要因素。
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。
After changing from mould casting into continuous casting, the composition segregation decreases and the toughness steel increases.
模铸转连铸后，减轻了成分偏析，提高了钢的韧性。
The results show that main cause of conchoidal fracture forming is that composition segregation in solidification grain boundary of casting steel reduces the resistance of crack propagation.
结果表明，沿一次晶晶界的成分偏析对裂纹扩展阻力的降低作用是铸钢中贝壳状断口形成的主要原因。
The results show that main cause of conchoidal fracture forming is that composition segregation in solidification grain boundary of casting steel reduces the resistance of crack propagation.
结果表明，沿一次晶晶界的成分偏析对裂纹扩展阻力的降低作用是铸钢中贝壳状断口形成的主要原因。
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