摘要
在攀钢1450热连轧机上,生产出了Q235普碳钢成分的超细晶粒热轧钢板。超细晶粒热轧钢板的显微组织为铁素体和珠光体,铁素体晶粒尺寸为4μm左右。热轧钢板的抗拉强度和屈服强度分别达到510MPa和400MPa以上,热轧钢板各向异性小,钢中夹杂物弥散分布,钢板具有良好的冷弯性能。
Ultra-fine grain hot rolled sheets were produced in 1450 hot mill at PZH Steel, its composition is the same as Q235. The microstructures of ultra-fine grain steel are ferrite and pearlite. Ferrite grain size is about 4 μm. The tensile strength and yield strength of hot rolled sheets are over 510 MPa and 400 MPa respectively. The anisotropy of ultra-fine grain hot rolled sheet is slight. Inclusions are dispersed in steel, so the steel sheet is of good cold-bending property.
出处
《钢铁钒钛》
CAS
北大核心
2003年第4期1-5,共5页
Iron Steel Vanadium Titanium
基金
国家973项目--"新一代钢铁材料重大基础研究"(G1998061502)。
