【摘要】：采用光學顯微鏡、EBSD觀察并研究了普通取向硅鋼組織、織構(gòu)的演變特征。結(jié)果表明:熱軋板組織及織構(gòu)沿板厚方向存在不均勻性,一次冷軋后,組織發(fā)生了較大變化,完全轉(zhuǎn)變?yōu)槔w維帶狀條帶組織。經(jīng)840℃×10 min脫碳退火后初次再結(jié)晶晶粒平均尺寸為20.13μm,織構(gòu)主要有{001}010、{111}112、以及Goss等織構(gòu),并可將碳脫至3.5×10-5以下。二次冷軋后,組織再次轉(zhuǎn)變?yōu)槔w維帶狀組織,織構(gòu)類型與一次冷軋板織構(gòu)類型類似,僅織構(gòu)強度不同。經(jīng)650℃×4 min回復(fù)時,冷軋組織發(fā)生了完全再結(jié)晶,再結(jié)晶晶粒平均尺寸為7.25μm。高溫退火過程中,隨著溫度的升高,具有Goss位向的初次晶粒發(fā)生異常長大,溫度到達1000℃時,晶粒尺寸達到厘米級,成品晶粒平均直徑為18.92 mm,晶粒較為圓整,成品最佳磁感為1.885 T,鐵損為1.21 W/kg。
[Abstract]:The microstructure and texture evolution characteristics of common oriented silicon steel were observed and studied by optical microscope and EBSD. The results show that the microstructure and texture of the hot rolled plate are not uniform along the thickness of the plate. After the first cold rolling, the microstructure of the hot rolled plate is changed greatly, and the structure is completely transformed into the fibrous strip structure. After decarbonization at 840 鈩，

本文編號：2355935