钢水成分对钢的高温力学性能和CSP薄板坯表面纵裂的影响  

Influence of the content of steel on hingh - temperature mechanical property of steel and longitudinal surface cracks of CSP slab

作　　者：李任春[1] 李托明[1] 路殿华[1] 胡志刚[2] 

机构地区：[1]邯郸钢铁集团公司 [2]武汉科技大学

出　　处：《连铸》2005年第5期24-26,共3页Continuous Casting

摘　　要：从钢水成分影响钢的高温力学性能的角度,研究钢水成分对钢的高温力学性能和CSP薄板坯表面纵裂的影响。研究表明,钢在高温下的临界应力和临界应变是决定裂纹形成的内因,钢的高温塑性对CSP铸坯裂纹的形成起主要作用,添加提高钢的高温强度和塑性的化学元素对减轻表面纵裂的发生有利。This paper analyzes the composition of liquid steel on the high - temperature mechanical property of steel and longitudinal surface crack of CSP slab. The study shows that the critical stress and strain at high temperature are the internal factors to result in the crack. The high - temperature plasticity of steel has an essential effect on the formation of CSP slab. The Chemical elements to increase the high - temperature strength and plasticity can be convenient to reduction of surface crack.

关 键 词：高温力学性能 CSP薄板坯 钢水成分 表面纵裂 裂纹形成 临界应变 高温塑性 化学元素 高温强度 

分 类 号：TF777[冶金工程—钢铁冶金]