Effect of Preliminary Deformation of Continuously Cast Billets by Radial-Shear Rolling on the Structure and Properties of Hot-Rolled Chromium-Containing Steel Pipes

被引：15

作者：

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

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

Romantsev, B. A. ^{[1
]}

Gamin, Yu. V. ^{[1
]}

Iskhakov, R. V. ^{[2
]}

机构：

[1] Natl Univ Sci & Technol MISiS NUST MISiS, Moscow, Russia

[2] Pervouralsk New Pipe Plant JSC PNPP JSC, Pervouralsk, Russia

来源：

METALLURGIST | 2021年 / 65卷 / 1-2期

关键词：

piercing; skew rolling; rotary piercing mill; radial-shear rolling; chromium steel; continuously cast billet; ALLOY; MICROSTRUCTURE; ZN; MG; NI; AL;

D O I：

10.1007/s11015-021-01147-4

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

The paper analyzes the effect of preliminary deformation of continuously cast billets (CCB) made of chromium-containing grades of steel by radial-shear rolling (RDR) on the structure and properties of seamless pipes. A bar stock measuring 105 mm in diameter was obtained using an RDR mill at large feed angles (beta = 21 degrees). A comparative analysis of the microstructure of the initial CCB and hotrolled bars has shown that radial-shear rolling enables intensive refinement of the structure of continuously cast billets, and ensures a high-quality (70 to 90%) work-up of the cast structure at reduction ratios of 2.0 to 2.2. A pipe-rolling mill (PRM) installed at the Pervoural'sk New Pipe Plant JSC (PNPP JSC) was used to obtain seamless pipes from the deformed bars, and the mechanical properties of such pipes were studied. It was found that the pipes obtained from the experimental billets are fully compliant with the ISO 11960:2004 requirements for strength group J55 (sigma(t) > 517 MPa; sigma(0.2) > 379 MPa; delta > 16%). In addition, the level of plastic properties of the experimental pipes (based on present elongation delta(5), %) exceeds the ISO 11960:2004 requirements by 1.6-1.8 times. To achieve a comparable level of properties using the existing technology, an additional heat treatment (HT) is required, which points to the potential advantages of using RDR pre-deformed billets to obtain seamless pipes with the required properties.

引用

页码：185 / 195

页数：11

共 30 条

[1] Radial-shear rolling of high-strength aluminum alloys: Finite element simulation and analysis of microstructure and mechanical properties [J].

Akopyan, T. K. ;

Gamin, Y., V ;

Galkin, S. P. ;

Prosviryakov, A. S. ;

Aleshchenko, A. S. ;

Noshin, M. A. ;

Koshmin, A. N. ;

Fomin, A., V .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2020, 786

[2] Formation of the gradient microstructure of a new Al alloy based on the Al-Zn-Mg-Fe-Ni system processed by radial-shear rolling [J].

Akopyan, T. K. ;

Belov, N. A. ;

Aleshchenko, A. S. ;

Galkin, S. P. ;

Gamin, Y. V. ;

Gorshenkov, M. V. ;

Cheverikin, V. V. ;

Shurkin, P. K. .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2019, 746 :134-144

[3] Metal Forming Study during Pipe Reduction on Three-High Rolling Mills [J].

Aleshchenko A.S. ;

Budnikov A.S. ;

Kharitonov E.A. .

Steel in Translation, 2019, 49 (10) :661-666

[4]

Bogatov A. A., 2017, SKEW ROLLING CONTINU

[5]

Chechulin Yu B., 2020, IOP Conference Series: Materials Science and Engineering, V718, DOI 10.1088/1757-899X/718/1/012004

[6]

Chernyshev Yu. M., 2016, MASTERING REDUCTION, P35

[7] Obtaining the required range of continuous-cast pipe blanks for piercing [J].

Chikalov S.G. ;

Klempert E.D. ;

Golubchik R.M. ;

Merkulov D.V. ;

Novikov M.V. .

Steel in Translation, 2007, 37 (3) :305-308

[8]

Frolochkin V. V., RF Patent, Patent No. 2245751

[9] Screw rolling for pipe-blank production [J].

Galkin S.P. ;

Kharitonov E.A. ;

Romanenko V.P. .

Steel in Translation, 2009, 39 (8) :700-703

[10]

Galkin S.P., 2014, CIS Iron and Steel Review, P35

← 1 2 3 →