材料工程Issue(4)：32-35,4.
Ti+Nb和Ti+V超低碳烘烤硬化钢的组织和性能研究
Research on Microstructure and Mechanical Properties of Ti+Nb and Ti+V Ultra-low Carbon Bake Hardening Steels
摘要
Abstract
Deformation resistance and dynamic continuous cooling transformation of Ti+Nb and Ti+V bearing ultra-low carbon bake hardening steels were studied using Gleeble-1500 thermal simulator. The microstructures of two experimental steels under different cooling conditions were also analyzed. The results showed that the deformation resistance of Ti+Nb bearing ultra-low carbon bake harden-ing steel was 13MPa higher than that of Ti +V bearing ultra-low carbon bake hardening steel at 1100°C with the strain rate of ls~'. The morphology of the microstructures and the grain size have big difference for two experimental steels under the same deformation conditions. The room temperature microstructures of the two experimental steels are polygonal ferrites under various cooling conditions. The ferrites of Ti + Nb bearing ultra-low carbon bake hardening steel are finer and have irregular shape with the average grain size of 16μm, while for Ti + V bearing ultra-low carbon bake hardening steel, the ferrites are coarse and have regular shape with the average grain size of 26μm.关键词
超低碳/烘烤硬化/变形抗力/组织性能Key words
ultra-low carbon/ bake hardening (deformation resistance /microstructure and property分类
矿业与冶金引用本文复制引用
陈继平,钱健清,李胜祗,康永林..Ti+Nb和Ti+V超低碳烘烤硬化钢的组织和性能研究[J].材料工程,2012,(4):32-35,4.基金项目
“十一五”国家科技支撑计划资助项目(2006BAE03A13) （2006BAE03A13）
