铝和铬在无取向电工钢晶粒长大过程中对晶界的作用

研究了铝和铬元素在无取向电工钢晶粒长大过程中对织构及晶界变化的影响规律.试验结果表明:电工钢在晶粒长大过程中的主要织构组分均为{111}＜112＞.在晶粒生长期间,不加铝的1号试样中,{111}＜112＞、{111}＜110＞织构组分强化,而{100}＜001＞织构组分弱化;与1号试样相比,在加入0.2%的铝(质量分数...

Effect of Alumium and Chromium on Grain Boundary in the Nonoriented Electrical Steel During Grain Growth

The effect rule of Aluminm and Chromium on texture and grain boundary transformation in the nonoriented electrical steel during grain growth was investigated. The experimental result shows that the main texture component is {111}<112> in the electrical steel. The {111}<112> and {111}<110> components in specimen 1 without Alumium were strengthened during grain growth whereas {100}<001> component was weakened. But the growth rate of {111}<112> and {111}<110> component decreased, while the area fraction of {100}<001> component did not change significantly in specimen 2 containing 02% Alumium comparing with specimen 1. The change rule of the {111}<112>, {111}<110> and {100}<001> components of specimen 3 containing 02% Al and 035% Chromium was similar to that of specimen 1. After 02% Alumium and 072% Chromium being added in the steel (specimen 4), the change rule of the three components of specimen 4 was similar to that of specimen 2. For the three components to be continuously changed during grain growth, the frequency of high (low) misorientation angle grain boundary of {111}<112> and {111}<110> components in specimen 1 decreased (increased), and that of {100}<001> component increased (decreased). But that of specimen 2 increasing (decreasing) rates brought low, while the increasing (decreasing) rates of the frequency (%) of high (low) misorientation angle grain boundary of these texture component in specimen 3 was similar to that of specimen 1, and that of specimen 4 was similar to that of specimen 2. The effect of Alumium and Chromium on grain boundary during grain growth was studied on basis of the experimental results.