经济型建筑用Ⅲ级钢筋的研究  

STUDY ON ECONOMICAL GRADE Ⅲ REINFORCING BARS FOR BUILDING

作　　者：张永权[1] 杨才福[1] 柳书平[1] 

机构地区：[1]钢铁研究总院

出　　处：《钢铁》2000年第1期43-46,共4页Iron and Steel

摘　　要：研究了在２０ＭｎＳｉ钢中添加高氮钒合金Ｎｉｔｒｏｖａｎ１２对钢的力学性能的影响。结果表明，在钒含量相同的情况下，添加Ｎｉｔｒｏｖａｎ１２ 的钢，抗拉强度可提高１３５ ＭＰａ，屈服强度可提高１１７．５ ＭＰａ；在保持强度相同或相近的情况下，添加Ｎｉｔｒｏｖａｎ１２ 的钢可节约３３．３ ％ 以上的钒。钢中添加Ｎｉｔｒｏｖａｎ１２合金，充分利用了廉价的氮元素，促进了Ｖ（Ｃ，Ｎ）的析出，提高了钒的沉淀强化效果。研制出可满足Ⅲ级钢筋技术指标要求的经济型建筑用钢筋。This paper has investigated the effect of adding nitrogen enriched vanadium alloy (Nitrovan 12) in 20MnSi steel on the mechanical properties of the steels The results show that, under the same level of vanadium content, the tensile strength of the N enhanced steels added Nitrovan 12 increases by 135 MPa and the yield strength increases by 117 5 MPa compared to the steels added 80 % FeV Under the same level of strength, the saving in vanadium consumption is over 33 3 % by using Nitrovan 12 compared to 80 % FeV The experimental results indicated clearly that nitrogen is an effective alloy element for vanadium bearing steel Nitrogen promotes precipitation of V(C,N) in V bearing steel and improves effect of precipitation strengthening of V Based on the research results, an economic grade Ⅲ reinfircing bars has been developed

关 键 词：钢筋 微合金化 钒钢 建筑材料 

分 类 号：TG142.33[一般工业技术—材料科学与工程]