摘要
通过50k真空炉冶炼不同含量铌钒复合的矿用锚杆钢，经中试轧制后，研究了铌钒含量对低碳微合金钢的组织及力学性能的影响。结果表明：铌钒复合锚杆钢比钒微合金锚杆钢的屈强比低0.3～0．4．晶粒度高0．5～1级。晶粒细化明显，易出现贝氏体，但经低温轧制＋超快冷技术即可达到500MPa级性能要求。采用0．026％铌＋0．03％V含量铌钒复合替代0．07％-0．08％V生产可获得高强度更高安全性能的低碳微合金锚杆钢。
Different niobium and vanadium compound of low carbon micro-alloyed steel was smelted by 50 kg small furnace, the influence of different niobium and vanadium content on the microstructure and mechanical properties of low carbon micro-alloyed steel was studied. The results show that the yield ratio of niobium and vanadium compound is lower about 0.3-0.4 than that of Vanadium, and the batinite structure easily appears. By low temperature rolling and rapid cooling technology, this performance reaches 500 MPa. 0.07%-0.08% vanadium was replaced with 0.026% niobium＋0.03% vanadium and high safety performance mining steel anchor was acquired.
出处
《热加工工艺》
CSCD
北大核心
2014年第6期107-110,共4页
Hot Working Technology
关键词
铌钒复合
锚杆钢
低屈强比
高安全性能
高强度
niobium and vanadium compound
low yield ratio
high safety performance
high strength
