Skripalenko Mikhail Mikhailovich, Rogachev Stanislav Olegovich, Romantsev Boris Alekseevich, Galkin Sergei Pavlovich, Kaputkina Liudmila Mikhailovna, Skripalenko Mikhail Nikolaevich, Danilin Andrei Vladimirovich, Fadeev Viktor Aleksandrovich
Department of Metal Forming, National University of Science and Technology "MISiS", Leninski Prospect, 4, 119049 Moscow, Russia.
Department of Physical Metallurgy and Physics of Strength, National University of Science and Technology "MISiS", Leninski Prospect, 4, 119049 Moscow, Russia.
Materials (Basel). 2022 Jan 27;15(3):995. doi: 10.3390/ma15030995.
The three-high screw rolling of AISI 321 billet from 60 mm to 52 mm diameter was performed using an MISIS-100T mill. When screw rolling was carried out, a set of sections were made in the billet's cross-section at the stationary stage of screw rolling. SolidWorks was applied to make the 3D model of the rolled billet's grain using microstructure images. The same technique was applied for the creation of the 3D model of a nondeformed billet's grain. A comparison of the 3D models' shape and dimensions before and after screw rolling was made. It was established that, compared to the nondeformed grain model, the screw rolled billet's grain model was twisted and elongated along some angle in the rolling direction. This angle's value is commensurable to the roll's feed angle during the experimental rolling. Anisotropy indexes of before and after rolling grain models were estimated and compared to the anisotropy indexes obtained via the sections' analysis in earlier research. Difference did not exceed 5%.
使用MISIS - 100T轧机对直径从60毫米到52毫米的AISI 321钢坯进行三辊轧。在进行螺旋轧制时，在螺旋轧制的静止阶段对钢坯横截面制作了一组切片。利用微观结构图像，运用SolidWorks制作轧制钢坯晶粒的三维模型。对于未变形钢坯的晶粒，采用同样的技术创建三维模型。对螺旋轧制前后三维模型的形状和尺寸进行了比较。结果表明，与未变形晶粒模型相比，螺旋轧制钢坯的晶粒模型在轧制方向上沿某个角度扭曲并拉长。该角度值与实验轧制过程中轧辊的进给角相当。对轧制前后晶粒模型的各向异性指数进行了估计，并与早期研究中通过切片分析得到的各向异性指数进行了比较。差异不超过5%。
