宝钢低碳微合金高强度钢连铸坯高温力学性能测试  

HIGH TEMPERATURE MECHANICAL PERFORMANCE OF HIGH STRENGTH LOW CARBON MICRO-ALLOYED STEEL AFTER CONTINUOUS CASTING

作　　者：候安贵[1] 任忠鸣[1] 

机构地区：[1]上海大学上海市钢铁冶金新技术应用开发重点实验室

出　　处：《上海金属》2008年第3期39-44,共6页Shanghai Metals

摘　　要：采用Gleeble试验机对宝钢低碳微合金高强度钢进行了高温力学性能的测试,分析断裂强度、断面收缩率随温度的变化情况,观察了试样在不同温度区间内的断口形貌和组织结构,并对微量元素Ti、Nb、V等的化合物析出与钢的延塑性之间的关系进行了讨论。The high temperature mechanical performance of the low carbon micro-alloyed high strength steel was studied with Gleeble 1500 at Baosteel. Fracture morphology and microstrueture were observed in different temperature ranges. The variance of rupture strength and the shrinkage rate on the cross section with temperature was analyzed, and the relationship between the precipitation of micro - alloy compounds of Ti, Nb, V and the ductility of the steel was also discussed.

关 键 词：微合金高强度钢 连铸坯 高温力学性能 拉伸实验 断口形貌 

分 类 号：TG142.14[一般工业技术—材料科学与工程] TG115.5[金属学及工艺—金属材料]