摘要
为降低钢结构件的成本,开发了一种新型的贝氏体高强度钢。该钢种属普通低碳合金钢,其特点是以价格较低的V,Mn,Cr取代昂贵的Ni,Mo,B等进行合金化,勿需热处理,生产工艺简单。铸坯的加热和压下制度与其它钢种类似,采用控温轧制和轧后空冷提高钢的强度和韧性。结果表明:试验钢板的抗拉强度较高,均在860MPa以上;且随着终轧温度的提高,钢的冲击韧性得到改善。
In order to decrease the product cost, a newly high strength bainitic steel have been developed. This steel is a plain carbon structural steel, its advantage is using cheap V, Mn, Cr instead of expensive Ni, Mo, B and other elements for alloying. The heat treatment of steel is not needed, so the production process is simply. The heating and rolling schedule are similar with other steels, but adopting controlled rolling and air cooling increase the strength and toughness. The tensile strength of experimental steel plates is higher than 860 MPa, and the impact toughness is improved with the decreasing of end rolling temperature.
出处
《钢铁钒钛》
CAS
北大核心
2003年第1期66-70,共5页
Iron Steel Vanadium Titanium
关键词
试制
非调质钢
贝氏体钢
微合金元素
强度
韧性
non-quenched and tempered steel
bainitic steel
microalloying element
strength
toughness
