Simulation and Experimental Evaluation of Circumferential Fracture Conditions in Hot Radial-Shear Rolling

被引：9

作者：

Galkin, S. P. ^{[1
]}

Stebunov, S. A. ^{[2
]}

Aleschenko, A. S. ^{[1
]}

Vlasov, A. V. ^{[3
]}

Patrin, P., V ^{[1
]}

Fomin, A., V ^{[1
]}

机构：

[1] State Technol Univ, Moscow Inst Steel & Alloys, Moscow, Russia

[2] QuantorForm, Moscow, Russia

[3] Bauman Moscow State Tech Univ, Moscow, Russia

来源：

METALLURGIST | 2020年 / 64卷 / 3-4期

关键词：

simulation; radial-shear rolling; circumferential fracture; creep-resistant alloys; QForm; modified Cockcroft-Latham criterion; self-heating; MECHANICAL-PROPERTIES; ALLOY;

D O I：

10.1007/s11015-020-00988-9

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

The conditions of circumferential fracture during hot radial-shear rolling are simulated using QForm software. The fields of modified Cockroft-Latham criterion and temperature are plotted. The results of simulation were validated experimentally by rolling bars made of creep-resistant alloy. Controlled circumferential fracture was created by intensifying the self-heating by increasing the rolling speed. The fracture zone was examined metallographically. The experiment confirmed that the main cause of circumferential fracture of the workpiece during radial-shear rolling is the rapid self-heating in the fracture zone rather than the stress state and ductility of the material. These results were confirmed by examining the fracture zone with a microscope.

引用

页码：233 / 241

页数：9

共 20 条

[1] Effect of Radial-Shear Rolling on the Formation of Structure and Mechanical Properties of Al-Ni and Al-Ca Aluminum-Matrix Composite Alloys of Eutectic Type [J].

Akopyan, T. K. ;

Aleshchenko, A. S. ;

Belov, N. A. ;

Galkin, S. P. .

PHYSICS OF METALS AND METALLOGRAPHY, 2018, 119 (03) :241-250

[2]

[Anonymous], PLASTICITY FRACTURE

[3]

[Anonymous], 1998, THESIS TECHNOLOGICAL

[4] Finite Element Modeling of Tube Piercing and Creation of a Crack [J].

Chastel, Yvan ;

Diop, Aliou ;

Fanini, Silvio ;

Bouchard, P. O. ;

Mocellin, Katia .

INTERNATIONAL JOURNAL OF MATERIAL FORMING, 2008, 1 (Suppl 1) :355-358

[5] Grain refinement, texture, and mechanical properties of a magnesium alloy after radial-shear rolling [J].

Dobatkin, S. ;

Galkin, S. ;

Estrin, Y. ;

Serebryany, V ;

Diez, M. ;

Martynenko, N. ;

Lukyanova, E. ;

Perezhogin, V .

JOURNAL OF ALLOYS AND COMPOUNDS, 2019, 774 :969-979

[6]

Galkin S. P., 2004, Stal, V7, P63

[7]

Galkin S.P., 2014, CIS IRON STEEL REV, V2014, P35

[8]

Gra- novsky S. P., 1971, Special Rolling Mills

[9] Radial-Shear Rolling of Titanium Alloy VT-8 Bars with Controlled Structure for Small Diameter Ingots (≤200 mm) [J].

Karpov, B. V. ;

Patrin, P. V. ;

Galkin, S. P. ;

Kharitonov, E. A. ;

Karpov, I. B. .

METALLURGIST, 2018, 61 (9-10) :884-890

[10]

Kolmogorov V.L., 1970, STRESS STRAIN FRACTU

← 1 2 →