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

页码：1275 / 1283

页数：9

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