Transformation of the Surface Cracks of in Continuously Cast Slabs Made of Low-Alloy Pipe Steels during Hot Rolling

被引：2
|
作者：
Chukin, M., V [1 ]
Salganik, V. M. [1 ]
Moller, A. B. [1 ]
Chikishev, D. N. [1 ]
机构：
[1] Nosov Magnitogorsk State Tech Univ, Magnitogorsk 455000, Russia
来源：
RUSSIAN METALLURGY | 2021年 / 2021卷 / 10期
关键词：
hot rolling; thick-sheet steel; low-alloy pipe steels; continuously cast slab; mathematical model; finite element method; surface crack; surface crack transformation;
D O I：
10.1134/S0036029521100116
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
A finite-element mathematical model is developed to describe the transformation of the surface cracks of continuously cast slabs made of low-alloy pipe steels into sheet defects during hot rolling. The transformation of axial, edge, rib, and side cracks of a slab is investigated. It is found that, depending on the deformation conditions, surface cracks on rolling a slab into a thick sheet can close in the first passages under compressive stresses, come to the surface, form folds, twist toward the edge, or completely rolled out.
引用
收藏
页码：1275 / 1283
页数：9
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