發(fā)布時間：2018-12-13 00:30

【摘要】：利用定量逐層研磨和計算機輔助重建及可視化技術(shù),并結(jié)合電子背散射衍射(EBSD)方法,研究了Hi-B鋼二次再結(jié)晶退火初期不同取向晶粒的三維形貌。結(jié)果表明,Goss取向晶粒主要呈"塔狀",黃銅取向晶粒則類似"上大下小"倒錐狀,{411}148取向晶粒也表現(xiàn)為"塔狀"和倒錐狀。而{111}112取向晶粒形貌各異,沒有一致性。與其它取向晶粒相比,Goss取向晶粒在三維尺度上沒有尺寸優(yōu)勢,Goss取向晶粒異常長大前,其長大主要受曲率控制。
[Abstract]:The 3D morphology of different orientated grains in Hi-B steel at the initial stage of secondary recrystallization annealing was studied by means of quantitative lapping, computer aided reconstruction and visualization, combined with electron backscatter diffraction (EBSD) method. The results show that the Goss oriented grains are mainly "tower", the brass oriented grains are similar to the "upper, larger, lower and smaller" inverted cones, and the {411} 148-oriented grains are also "tower" and inversely conical. However, the {111} 112 orientated grains have different morphologies and have no consistency. Compared with other oriented grains, Goss orientated grains have no advantage in size on three dimensional scale. Before Goss orientation grain grows abnormally, its growth is mainly controlled by curvature.
【作者單位】： 武漢科技大學(xué)省部共建耐火材料與冶金國家重點實驗室;
【基金】：國家自然科學(xué)基金項目No.51274155~~
【分類號】：TG142.1;TG161

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