公路桥梁用高强度结构钢WQ540D的开发  

Research of High Strength Structural Steel WQ5d0D for Highway Bridges

作　　者：董中波[1] 邹德辉[1] 黄海娥[1] 罗毅[1] 

机构地区：[1]武汉钢铁(集团)公司研究院,湖北武汉430080

出　　处：《中国材料科技与设备》2014年第3期62-65,共4页Chinese Materials Science Technology & Equipment

摘　　要：根据公路桥梁用钢的应用特点和要求，通过制定合理的成分和冶炼、轧制工艺，采用C—Mn，Nb、Ti微合金化的成分体系及控轧工艺，开发出公路桥梁用高强度结构钢WQ540D。对该钢的冶金质量、微观组织、基本力学性能进行了分析。试验结果显示：该钢具有优良的综合力学性能，满足公路桥梁用高强度结构钢的技术和使用要求。According to the application characteristics and requirements of highway bridges steel, by reasonable design of chemical composition and smelting and rolling process, using C-Mn, Nb-Ti microalloy composition system and controlled rolling process, the high strength structural steel WQ540D for the highway bridge was developed. The metallurgical quality, mierostructure and mechanical properties of the steel was analyzed. The results indicate that the products had excellent comprehensive mechanical properties, it can meet the requirements of technology and application for the high strength structural steel for the highway bridges.

关 键 词：桥梁铜 WQ540D 冶金质量 组织 性能 

分 类 号：TF762.1[冶金工程—钢铁冶金]