屈服强度500MPa级高强度高韧性耐候钢的研制  

Development of high strength and high toughness atmospheric corrosion resistant steel with yield strength of 500 MPa

作　　者：刘观猷 陈亮 葛亮 李曜 苗丕峰 LIU Guanyou;CHEN Liang;GE Liang;LI Yao;MIAO Pifeng(Jiangyin Xingcheng Special Steel Works Co.Ltd.,Jiangyin 214429,China)

机构地区：[1]江阴兴澄特种钢铁有限公司,江苏江阴214429

出　　处：《现代交通与冶金材料》2021年第6期70-75,共6页Modern Transportation and Metallurgical Materials

摘　　要：采用低碳+复合微合金化的方法,通过Cu-Ni-Cr-Si的成分体系增强耐候性能,结合新一代控制轧制与控制冷却(TMCP)工艺,成功研制出厚度达32 mm、屈服强度500 MPa级的高强度高韧性耐候钢板。试验钢板具备高强度、高的低温韧性、优异的焊接和良好耐腐蚀性能,其组织为细小的针状铁素体。A high strength,high toughness and atmospheric corrosion resistant steel with thickness up to 32 mm and yield strength of≥500 MPa has been successfully developed by combination of low carbon and composite microalloying,TMCP processing and addition of Cu,Ni,Cr and Si.The steel has fine acicular ferrite,high strength,excellent low temperature toughness and excellent weldability and good atmospheric corrosion resistance.

关 键 词：耐候钢 TMCP 焊接性能 高强度 高韧性 

分 类 号：TG172[金属学及工艺—金属表面处理] TG406[金属学及工艺—金属学]