摘要
在当前降成本及绿色化生产的趋势下,开发了一种低成本正火态交货特厚EH36船用钢板。其采用C-Mn-Si-Nb-Ti成分体系,不添加V元素,为获得高强度及良好的低温韧性,研究了加热、轧制工艺对成品钢板组织性能的影响。结果表明:不添加V元素,正火钢板不具V(C,N)的析出强化作用,而通过延长铸坯加热时间和减小中间坯待温厚度,可显著改善轧后钢板组织形态,正火后钢板可获得细小的铁素体晶粒和弥散的珠光体组织,钢板各项性能优良。
Under the current trend of cost reduction and green production, a heavy thickness EH36 ship plate of normalized delivery was developed. Its chemical composition of C-Mn-Si-Nb-Ti system without adding V element was adopted. In order to obtain high strength and good low temperature toughness, the influence of heating and rolling processes on the microstructure and properties of the finished plate was studied. The results show that the normalized plate does not have the precipitation strengthening effect of V(C, N) without adding V element, but by extending the heating time of the slab and reducing the thickness of the intermediate slab, the microstructure of the plate after rolling can be significantly improved. The fine ferrite grains and dispersed pearlite structure can be obtained of the plate after normalizing, and its performance is excellent.
作者
刘坚锋
李文平
熊文名
刘敏
葛启录
熊慎凯
LIU Jianfeng;LI Wenping;XIONG Wenming;LIU Min;GE Qilu;XIONG Shenkai(National Engineering Research Center of Continuous Casting Technology,Central Iron and Steel Research Institute,Beijing 100081,China;Xinyu Iron and Steel Group Co.,Ltd.,Xinyu 338001,China)
出处
《轧钢》
2022年第1期21-24,61,共5页
Steel Rolling
基金
2018年新余市3315工程计划项目(余财教[2018]56号)。
关键词
低成本
绿色生产
减量化
正火态交货
特厚EH36船板
加热时间
中间坯待温厚度
控制轧制
组织性能
low cost
green production
reduction
normalized delivery
heavy thickness EH36 ship plate
heating time
intermediate slab thickness
controlled rolling
microstructure and properties
