建筑用钢筋的拉伸断裂行为研究  

Tensile Fracture Behavior of Steel Used for Construction

作　　者：王远涛[1] 张小迪[1] 

机构地区：[1]河南城建学院,河南平顶山467000

出　　处：《铸造技术》2014年第11期2495-2497,共3页Foundry Technology

摘　　要：对Nb、V微合金化的4种建筑用钢的组织与性能进行了研究。结果表明,钢筋的组织都由铁素体、珠光体和贝氏体组成。随着Nb含量的降低,组织中贝氏体含量减少。4种钢筋的拉伸断口形貌中都存在着微裂纹,裂纹处的夹杂物主要为Mn S和氧化物。The microstructures and properties of the four construction steels microalloyed with Nb and V were investigated.The results show that the microstructures of the steel are made of ferrite, pearlite and bainite. The volume fraction of bainite decreases with the decrease of the Nb content. There are micro cracks on the tensile fractures of four steel bars, and the inclusions of the crack are mainly Mn S and oxide..

关 键 词：钢筋 断裂 贝氏体 

分 类 号：TU511.32[建筑科学—建筑技术科学]