论文部分内容阅读
在普通含钒600 MPa级钢筋成分基础上,通过添加适量的铬、铜、铌元素,利用光学显微镜、电子扫描电镜、高温激光共聚焦显微镜、透射电子显微镜等手段研究合金元素对高强钢筋强屈比性能的影响。结果表明,加入铬、铜、铌后,均可提高钢筋的强屈比,铌的作用最为显著,加入微量铌提高了钢筋组织中硬相比例,增大了两相强度差,提高强屈比。
On the basis of ordinary 600 MPa steel containing vanadium, the effect of alloying elements on the strength of high strength steel bars was studied by means of optical microscope, electronic scanning electron microscope, transmission electron microscope Than the performance impact. The results show that the addition of chromium, copper and niobium can improve the strength ratio of the rebar. The effect of niobium is the most significant. Addition of micro niobium increases the proportion of hard phase in the rebar and increases the difference of strength between the two phases, .