Strengthening mechanisms of vanadium micro-alloyed reinforcing steel bar

摘要：

High strength vanadium micro-alloyed steel with yield strength of 600MPa has been developed based on commercial 20MnSi steel bar. Experimental methods, such as OM, SEM and TEM, were used to study the experimental steels. Compared with 20MnSi, steel 20MnSiV boasts much finer microstructure, and large numbers of nanometer precipitates exist in the specimens of 20MnSiV. Analysis shows that strength of 20MnSiV dramatically increases through grain refinement strengthening and precipitation hardening of nanometer VCN particles.

关键词： Bar steel Vanadium micro-alloyed technology Grain refinement Precipitationhardening

作者: Liejun Li iangdong Huo Lin Guo

作者单位: School of Mechanical and Automotive Engineering, South China University of Technology, Guangzhou 510 School of Material Science and Engineering, Jiangsu University, Zhenjiang 212013, China

会议类型: 国际会议

会议名称: 2011 3nd International Conference on Mechanical and Electronics Engineering(2011年第三届机械与电子工程国际会议 ICMEE2011)

会议地点: 合肥

会议语种:英文

页码: 942-945

在线出版日期: 2011-09-23（万方平台首次上网日期，不代表论文的发表时间）