【摘要】 利用光学显微镜、背散射电子衍射(EBSD)显微分析及高分辨透射电镜(TEM)等分析技术,研究了不同退火温度及卷取处理对Ti-V超低碳烘烤硬化冷轧钢板的再结晶晶粒尺寸、组织、织构以及第二相粒子的影响。结果表明:在高于750℃退火,试样均已完成再结晶过程,退火温度的升高,有利于得到均匀的铁素体组织和提高{111}织构的强度,但对α织构的影响较弱,卷取处理试样较易获得强的{111}织构。第二相粒子的形态、大小和分布也影响着织构的形成发展。更多还原

【Abstract】 By means of metallurgical microscope,electron back scatter diffraction technique(EBSD) and TEM technology,the influence of heat treatment process on recrystallized grain size,microstructure,texture and particle of second phase of Ti-V ultra low carbon bake-hardening steel was investigated.The results showed that with the increasing of annealing temperature,the orientation density of {111} texture become stronger and the grain size distribution become more uniform,but the effect on α texture become weaker.The effect of coiling on bake hardening steels caused to obtain {111} texture easily.There was a close relationship between shape,size and distribution of precipitates and texture.更多还原