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首页> 外文期刊>Journal of Materials Science >Microstructural and textural characterization of a hot-rolled IF steel
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Microstructural and textural characterization of a hot-rolled IF steel

机译：热轧IF钢的组织和组织表征

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摘要

The present paper reports the experimental results on the microstructural and textural characterization of a hot-rolled IF steel. The IF steel was hot-rolled in multiple passes in the austenitic field (1,070 °C) followed by air-cooling. SEM, TEM, and LOM were used to image the microstructure of the material. The global texture was determined by X-ray diffraction (XRD) technique. The mesotexture of selected regions was investigated by electron backscatter diffraction (EBSD). Results show the presence of a diffuse (nearly random) and weak texture in the hot-band that consists of recrystallized polygonal grains and subgrains. The fraction of boundaries with misorientations comprised in the interval 2° ≤ ψ < 15° was found to be lower than 5%. It can be concluded that these low angle boundaries and the presence of subgrains can be associated to the existence of a few areas softened by recovery during or after hot rolling in austenitic field.
机译：本文报道了热轧IF钢的组织和组织表征的实验结果。 IF钢在奥氏体场（1,070°C）中经过了多道次热轧，然后进行空冷。 SEM，TEM和LOM用于成像材料的微观结构。整体纹理是通过X射线衍射（XRD）技术确定的。通过电子背散射衍射（EBSD）研究了选定区域的介观织构。结果显示，在由重结晶的多边形晶粒和亚晶粒组成的热带中，存在弥散（几乎随机）和较弱的织构。发现在2°≤ψ<15°的区间内，取向错误的边界分数低于5％。可以得出结论，这些低角度边界和亚晶粒的存在可能与奥氏体场热轧过程中或之后通过恢复而软化的一些区域的存在有关。

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