scholarly journals Effect of Internal Oxidation of the Hot-Rolled Sheet Steel, on the Suppression of the Si and Mn Selective Surface Oxidation in Recrystallization Annealing, after Cold Rolling

2004 ◽  
Vol 55 (1) ◽  
pp. 48-55 ◽  
Author(s):  
Yoshitsugu SUZUKI ◽  
Kazuaki KYONO
Keyword(s):  
Cold Rolling ◽  
Internal Oxidation ◽  
Sheet Steel ◽  
Surface Oxidation ◽  
Recrystallization Annealing ◽  
Rolled Sheet ◽  
Hot Rolled

Effect of Hot-Rolled Microstructure on the Recrystallization Texture of Cold-Rolled Non-Oriented Electrical Steel

2011 ◽  
Vol 298 ◽  
pp. 203-208 ◽  
Author(s):  
Zi Li Jin ◽  
Wei Li ◽  
Yi Ming Li
Keyword(s):  
Cold Rolling ◽  
Electrical Steel ◽  
Texture Evolution ◽  
Steel Strip ◽  
Silicon Steel ◽  
Grain Structure ◽  
Recrystallization Annealing ◽  
Rolled Sheet ◽  
Cold Rolled ◽  
Hot Rolled

With the help of orientation distribution function (ODF) analysis, experiments of different hot band grain microstructure 0.33% silicon steel were cold-rolled and annealed in the laboratory，to study the effect of the microstructure hot-rolled steel strip for cold rolled non-oriented silicon steel microstructure and texture of recrystallization annealing. The results show that hot rolled microstructure on cold rolled Non-Oriented Electrical Steel cold-rolled sheet evolution of texture and recrystallization have important influence, the quiaxed grain structure of steel by cold rolling and recrystallization annealing, the recrystallization speed than the fiber grain-based mixed crystals recrystallization fast , With the equiaxed grains made of cold rolled silicon steel after annealing the {110}<UVW> texture components was enhanced and {100}<uwv> texture components weakened. Different microstructure condition prior to cold rolling in the recrystallization annealing process the texture evolution has the obvious difference, the equiaxial grain steel belt cold rolling and annealing, has the strong crystal orientation. This shows that the equiaxed grain when hot microstructure is detrimental to the magnetic properties of cold-rolled non-oriented silicon steel to improve and increase.

scholarly journals Stabilization in Strength of Hot-rolled Sheet Steel Strengthened by Nanometer-sized Carbides

2007 ◽  
Vol 93 (1) ◽  
pp. 49-56 ◽  
Author(s):  
Yoshimasa FUNAKAWA ◽  
Kazuhiro SETO
Keyword(s):  
Sheet Steel ◽  
Rolled Sheet ◽  
Hot Rolled

scholarly journals Development of High Strength Hot-rolled Sheet Steel Consisting of Ferrite and Nanometer-sized Carbides

2004 ◽  
Vol 44 (11) ◽  
pp. 1945-1951 ◽  
Author(s):  
Yoshimasa Funakawa ◽  
Tsuyoshi Shiozaki ◽  
Kunikazu Tomita ◽  
Tetsuo Yamamoto ◽  
Eiji Maeda
Keyword(s):  
Sheet Steel ◽  
High Strength ◽  
Rolled Sheet ◽  
Hot Rolled

Determination of the length of hot-rolled sheet steel in a coil by the number of loops

Metallurgist ◽  
1965 ◽  
Vol 9 (4) ◽  
pp. 217-218
Author(s):  
N. S. Khotyushin ◽  
G. M. Popov
Keyword(s):  
Sheet Steel ◽  
Rolled Sheet ◽  
Hot Rolled

Influence of Thermal Cyclic Deformation and Hardening Heat Treatment on the Structure and Properties of Steel 10

2015 ◽  
Vol 788 ◽  
pp. 187-193 ◽  
Author(s):  
Aleksandr Prudnikov ◽  
Marina Popova ◽  
Vladimir Prudnikov
Keyword(s):  
Heat Treatment ◽  
Cyclic Deformation ◽  
Sheet Steel ◽  
Strength Characteristics ◽  
Rolled Sheet ◽  
Structure And Properties ◽  
Fine Grained ◽  
Fine Grained Structure ◽  
Hot Rolled ◽  
Hardening Heat Treatment

The results of the influence of preliminary thermal cyclic deformation and subsequent hardening heat treatment on the microstructure and mechanical properties of hot-rolled sheet steel 10 are presented. It is shown that the use of preliminary thermal cyclic deformation of the steel 10 stock material results in a fine-grained structure of a hot-rolled sheet (3 mm thick) produced by an industrial technology. Deformation occurred at a temperature above AC3 (1250 °C), with cooling to 200-300 °C during 10 cycles and the deformation ratio per cycle being 6-8 %. Such a treatment before sheet hot-rolling allows increasing the strength characteristics (tensile strength, yield strength) by almost 30 %. It has been established that the use of subsequent heat treatment (quenching, 900 °C, water and tempering 1 h, 600 °C) leads to a further increase in strength characteristics by 15-20% while maintaining a sufficient level of ductility of sheet steel.

Recognition of surface defects of rolled steel in sheets by application micro-X-ray spectral analysis

2021 ◽  
Vol 77 (11) ◽  
pp. 1168-1176
Author(s):  
A. B. Sychkov ◽  
N. V. Koptseva ◽  
Yu. Yu. Efimova ◽  
G. Ya. Atangulova (Kamalova)
Keyword(s):  
Spectral Analysis ◽  
Surface Defects ◽  
Economic Effect ◽  
Sheet Steel ◽  
Rolled Sheet ◽  
Accurate Identification ◽  
Sheet Rolling ◽  
X Ray ◽  
Rolling Production ◽  
Hot Rolled

Surface defects of sheet rolled products have a significant impact on its quality, performance and further processing of products, for example, on application of a protective anticorrosive coating. Therefore, the elimination of such defects and their accurate identification is an important aspect of sheet rolling production. Reducing the rejection of metal for surface defects enables to get a significant technical and economic effect. Investigation of the causes of defectiveness of the surface of sheet rolled products will make it possible to determine the source of the appearance of the defects and methods to prevent them. Determination of the nature and morphology of surface defects, the sources of which being metallic and non-metallic inclusions, as well as remnants of slag surface layer, scales from metallurgical and rolling stages, rolled into the surface of a hot-rolled sheet, is often difficult, since the appearance of the defects is very similar. It was shown that application of a scanning electron microscope (SEM) with micro-X-ray spectral analysis (MXSA), thermodynamic analysis makes it possible to determine the chemical composition of micro-areas and associate it with the end-to-end technology of sheet production. The article presents the results of identifying surface defects of cold-rolled sheet steel.

Sign in / Sign up

Export Citation Format

Share Document