含Cu取向硅钢中第二相粒子析出演变行为研究
发布时间：2018-11-08 13:59
【摘要】：使用场发射扫描电子显微镜(SEM)观察CGO硅钢制备过程中第二相粒子的析出行为及分布状态,统计粒子的平均尺寸、面密度及Zener因子。结果表明:试样中主要存在两种析出物,一种是(Cu,Mn)S复合析出物,尺寸为1μm左右,称为A类析出物,另一种是Cu_2S析出物,尺寸为10~30nm,称为B类析出物,Cu_2S起主要抑制作用。第二相粒子在热轧阶段大量弥散析出,平均粒子尺寸最小,面密度最高,高温退火前的加工阶段,粒子的平均尺寸不断增加,面密度逐渐降低;高温退火过程中,随着析出物体积分数的降低,其抑制能力呈下降趋势,960℃时析出物发生明显的聚集现象,当Zener因子A低于临界值0.19nm~(-1)时,二次再结晶发生,残留的粒子不会产生有效的抑制作用。
[Abstract]:Field emission scanning electron microscopy (SEM) was used to observe the precipitation behavior and distribution of the second phase particles in the preparation of CGO silicon steel. The average size, surface density and Zener factor of the particles were calculated. The results show that there are two kinds of precipitates in the sample, one is (Cu,Mn) S compound precipitates, the size is about 1 渭 m, and the other is Cu_2S precipitates, which are called B precipitates. Cu_2S plays a major inhibitory role. The second phase particles precipitated in large quantities in hot rolling stage, the average particle size was the smallest, the surface density was the highest, and the average particle size increased and the surface density decreased gradually in the processing stage before high temperature annealing. During high temperature annealing, with the decrease of the integral number of precipitates, the inhibition ability of the precipitates decreases, the precipitates gather obviously at 960 鈩，
本文编号：2318696
[Abstract]:Field emission scanning electron microscopy (SEM) was used to observe the precipitation behavior and distribution of the second phase particles in the preparation of CGO silicon steel. The average size, surface density and Zener factor of the particles were calculated. The results show that there are two kinds of precipitates in the sample, one is (Cu,Mn) S compound precipitates, the size is about 1 渭 m, and the other is Cu_2S precipitates, which are called B precipitates. Cu_2S plays a major inhibitory role. The second phase particles precipitated in large quantities in hot rolling stage, the average particle size was the smallest, the surface density was the highest, and the average particle size increased and the surface density decreased gradually in the processing stage before high temperature annealing. During high temperature annealing, with the decrease of the integral number of precipitates, the inhibition ability of the precipitates decreases, the precipitates gather obviously at 960 鈩，
本文编号：2318696
本文链接：https://www.wllwen.com/kejilunwen/jiagonggongyi/2318696.html
