scholarly journals The study of laser deep penetration processing on prefabricated cracks of high carbon steel

2020 ◽  
Author(s):  
Dongwei Liu ◽  
Yan Shi ◽  
Jia Liu
Keyword(s):  
Carbon Steel ◽  
Brittle Fracture ◽  
Mixed Mode ◽  
High Carbon Steel ◽  
Deep Penetration ◽  
High Carbon ◽  
Central Crack ◽  
High Magnitude ◽  
High Microhardness

Abstract This paper describes the testing of laser deep penetration processing on controlled fragmentation of high carbon steel (50SiMnVB). The objective of this research is to make use of defects in deep penetration zones and optimize the quality of prefabricated cracks. The research shows that a deeper central crack appear in the deep penetration zone when the heat input is 60 J/mm, and the appeared crack is affected by martensite in microstructure, high microhardness and a high magnitude of tensile stress. Furthermore, the fracture mode of the deep penetration zones is mixed-mode (ductile and brittle fracture).

Effect of complex electromagnetic stirring on inner quality of high carbon steel bloom

2006 ◽  
Vol 425 (1-2) ◽  
pp. 201-204 ◽  
Author(s):  
Jianchao Li ◽  
Baofeng Wang ◽  
Yonglin Ma ◽  
Jianzhong Cui
Keyword(s):  
Carbon Steel ◽  
High Carbon Steel ◽  
Electromagnetic Stirring ◽  
High Carbon

scholarly journals Optimization of Submerged Entry Nozzle Depth in CC Mould / Optymalizacja Zanurzenia Wylewu W Krystalizatorze Cos

2015 ◽  
Vol 60 (4) ◽  
pp. 2927-2932
Author(s):  
J. Pieprzyca ◽  
T. Merder ◽  
M. Saternus
Keyword(s):  
Carbon Steel ◽  
Continuous Casting ◽  
High Carbon Steel ◽  
Low Carbon Steel ◽  
Submerged Entry Nozzle ◽  
Casting Process ◽  
Low Carbon ◽  
High Carbon ◽  
Steel Continuous Casting

The way and speed of steel flux flowing into mould of continuous casting (CC) machine belong to the important parameters characterizing the steel continuous casting process. Such flux causes determined kinds of steel circulation, which together with simultaneous steel crystallization influence the creation of ingots primary structure and quality of its surface. The article presents the results of modelling research which aim was to determine the optimal location of submerged entry nozzle in square moulds (130 x 130 mm and 160 x 160 mm) of CC machine. Such a research was carried out for two different grades of steel (low-carbon steel and high-carbon steel), which feature different parameters of casting.

Influence of Soft Reduction on Internal Quality of High Carbon Steel Billets

2006 ◽  
Vol 77 (7) ◽  
pp. 485-491 ◽  
Author(s):  
Wolfgang Bleck ◽  
Wenjun Wang ◽  
Raimund Bülte
Keyword(s):  
Carbon Steel ◽  
High Carbon Steel ◽  
Internal Quality ◽  
High Carbon ◽  
Soft Reduction

The Effect of Electromagnetic Stirring on Steel Strand Quality

2012 ◽  
Vol 482-484 ◽  
pp. 1699-1702
Author(s):  
Chun Liu ◽  
Bai Gang Jin
Keyword(s):  
Carbon Steel ◽  
High Carbon Steel ◽  
Experimental Results ◽  
Electromagnetic Stirring ◽  
Current Intensity ◽  
High Carbon ◽  
Equiaxed Zone ◽  
Steel Strand ◽  
Better Than

Application experiments have been done to research the strand quality of high carbon steel 65Mn under the condition of electromagnetic stirring. The experimental results show that the effect of electromagnetic stirring with stirring rollers in side-side disposition mode is better than that in face-face disposition mode. The effect of electromagnetic stirring is also increased with the increasing of current intensity, and the continuous stirring is better than alternating stirring. Thus, conclusion could be arrived that the strand inner quality is improved obviously by the adoption of electromagnetic stirring due to 32% increase of equiaxed zone ratio in the strand and the decrease from B0.5 to C1.0 of the center segregation grade.

scholarly journals Effect of Die Angle and Frictional Conditions on Fine Grain Layer Generation in Multipass Drawing of High Carbon Steel Wire

Metals ◽  
2020 ◽  
Vol 10 (11) ◽  
pp. 1462
Author(s):  
Alexey Stolyarov ◽  
Marina Polyakova ◽  
Guzel Atangulova ◽  
Sergei Alexandrov
Keyword(s):  
Carbon Steel ◽  
Steel Wire ◽  
High Carbon Steel ◽  
Phenomenological Approach ◽  
Qualitative Behavior ◽  
High Carbon ◽  
Fine Grain ◽  
Quality Of Products ◽  
Number Of Passes

Fine grain layers that generate near frictional interfaces in metal forming processes affect the quality of products. The present paper aims to contribute to the continuum-mechanics-based phenomenological approach for predicting such layers’ properties. In particular, it studies the generation of fine grain layers in the process of multipass drawing of thin high carbon steel wires experimentally. The wires are drawn in three passes under different friction conditions. All three dies in each multipass process have the same semiangle. In total, two die semiangles are used, 4° and 5°. The effects of such processing conditions as the die semiangle, the number of passes, and the friction conditions on the thickness of fine grain layers are observed and discussed. The criterion for determining this thickness is based on the coefficient of anisotropy. Under soft friction conditions, the fine grain layer’s thickness decrease occurs during the consequential passes independently of the die semiangle. On the other hand, in the case of hard friction conditions, the thickness may or may not be a monotonic function of the number of passes, and its general qualitative behavior depends on the die semiangle.

Internal friction in a martensitic high-carbon steel

2001 ◽  
Vol 81 (12) ◽  
pp. 2797-2808
Author(s):  
Rustem Bagramov, Daniele Mari, Willy Benoi
Keyword(s):  
Carbon Steel ◽  
Internal Friction ◽  
High Carbon Steel ◽  
High Carbon

Weldability of electroslag remelted high-carbon steel at flash-butt welding

2019 ◽  
Vol 2019 (3) ◽  
pp. 29-37
Author(s):  
A.A. Polishko ◽  
◽  
L.B. Medovar ◽  
A.P. Stovpchenko ◽  
E.V. Antipin ◽  
...  
Keyword(s):  
Carbon Steel ◽  
High Carbon Steel ◽  
High Carbon ◽  
Butt Welding
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