高强度船板用钢开发及焊接裂纹敏感性评价  

Development of High Strength Structural Ship Plate and Evaluation of Welding Crack Sensitivity

作　　者：罗朝清[1] 陈英俊[1] 傅清霞[1] 程小三[1] 黄瑚[1] 

机构地区：[1]新余钢铁有限责任公司,江西新余330012

出　　处：《江西冶金》2008年第3期5-9,共5页Jiangxi Metallurgy

摘　　要：按高强度船板的技术要求,设计了E40级低焊接裂纹敏感性钢。采用微合金化结合控轧控冷工艺,以晶粒细化、沉淀强化为主要手段获得了成功,并对钢的可焊性进行了评价。产品已应用于船舶制造工业。According to technique demand of high strength structural ship steel, E40 grade steel with low welding crack sensitivity is designed. The ways which take grain refinement and precipitation strengthening as main means are achieved combined micro-alloying with controlling roiling and controlling cooling process, welding performance of E40 grade steel is evaluated. Meanwhile, the product is applied in ship building industry.

关 键 词：非调质钢 焊接裂纹 敏感性 

分 类 号：TF762[冶金工程—钢铁冶金] TG115.5[金属学及工艺—物理冶金]