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ISSN 1003-8620 · Editorial Office of Special Steel · 2.842 artikel di indeks
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Artikel Jurnal
Effect of Ladle Bottom Optimization on the Slab Cleanliness of Continuous Casting Slabs
To investigate the mechanism by which optimizing the ladle bottom structure improves steel cleanliness， this study focuses on slag entrapment behavior and adopts the critical vortex height as the key indicator for evaluating the tendency of slag entrainment. By analyzing the water model data， three…
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Artikel Jurnal
Effect of High-Energy Electrical Pulse Treatment on the Microstructure and Properties of GCr15 Bearing Steel
GCr15 bearing steel is the most widely used material for bearing components due to its high strength and hardness. The efficient and convenient preparation of refined and homogenized matrix microstructures has always been a research hotspot for GCr15 bearing steel. In this study， a high-frequency，…
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Artikel Jurnal
Productive Practice of High Quality H13 Hot Work Die Steel under the Action of PMO
To develop high-quality H13 hot work die steel continuous-casting billets and address quality issues such as segregation and shrinkage cavities， a process involving converter + LF + RH + continuous casting + rolling was adopted. By employing dual-block slide gate in the converter， full-process…
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Artikel Jurnal
Effect of High Temperature Tempering on Microstructure and Mechanical Properties of High Nitrogen Martensitic Stainless Bearing Steel
The high nitrogen martensitic stainless bearing steel was tempered at 400 ℃ - 600 ℃， and its mechanical properties such as hardness， strength and toughness were tested. The microstructure was characterized by optical microscope， SEM and TEM. The effects of high temperature tempering on its…
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Artikel Jurnal
Effect of Smelting Process on the Microstructure and Properties of 23MnNiMoCr54 Mining Round Chain Links
Through Rockwell hardness testing， EBSD， XRD， TEM characterization and other methods， the differences in hardness and microstructure between German and domestic 23MnNiMoCr54 chain link steels were revealed. The results show that the German chain link has higher residual elements Cu and N due to the…
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Artikel Jurnal
Persistent Precipitation Phase Transformation of S30432 Steeel at 650 ℃ and Its Effect on Material Property
The persistent precipitation phase transformation of S30432 steel after 650 ℃ creep and its effect mechanism on the material's creep ductility were systematically investigated by using analytical methods such as scanning electron microscopy （SEM）， electron backscatter diffraction （EBSD）， and…
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Artikel Jurnal
Research on Hot Compression Deformation Behavior of Bainitic Non-Quenched and Tempered Steel 25MnCrVS for Automobile Front Axle
Bainitic non-quenched and tempered steel has broad application prospects in the field of high-strength and tough structural components. On the basis of traditional Mn-Cr series bainitic non-quenched and tempered steel， a new type of bainitic non-quenched and tempered steel has been developed by…
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Artikel Jurnal
Prediction Model of End-point Phosphorus Content in Converter Based on UMAP-GWO-DNN
Precise control of the endpoint phosphorus content in converter steelmaking is a core aspect for enhancing steel quality and smelting efficiency. This study innovatively integrates Uniform Manifold Approximation and Projection （UMAP）， Grey Wolf Optimization （GWO）， and Deep Neural Network （DNN）…
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Artikel Jurnal
Effect of Nitrogen Infiltration on Microstructure and Properties of 12Cr Ferritic-Martensitic Steel
The effects of nitrogen-hydrogen mixed atmosphere heat treatment on microstructure and properties of 12Cr ferritic-martensitic steel were studied by electron backscatter diffraction （EBSD） and microhardness （HV0.025）. The results showed that the surface structure of the tube changed due to nitrogen…
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Artikel Jurnal
Effects of Furnace Atmosphere on Supersonic Jet Characteristics of a Five-Nozzle Oxygen Lance in a 200-ton Converter
To address the issue that high temperatures and significant furnace gas variations during converter steelmaking substantially affect the characteristics of supersonic oxygen jets， while research on the changing patterns of jet characteristics across different smelting stages remains limited， the…
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Artikel Jurnal
Effect of Mechanical Reduction Process of 22MnB5 Steel Slab
To address the internal quality issues of 1 400 mm × 300 mm thick 22MnB5 steel slabs， a dynamic mesh mechanical soft-reduction model for slab solidification was developed. This model integrates multiple physical fields， including fluid flow， heat transfer， solidification， and solute transport， to…
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Artikel Jurnal
Overview of Production and Research of Medium and Heavy Plates and Low Temperature Impact Toughness
With the rapid development of energy infrastructure， shipbuilding and promotion of China’s “the Belt and Road” strategy， the demand for medium and heavy plates that widely used for containers/pressure vessels， ships， pipelines， etc.，is growing increasingly， and their mechanical properties are also…
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Artikel Jurnal
Numerical Simulation of Structural Optimization And Process Parameter Control of Submerged Nozzles For Wide And Thick Slab
The submerged nozzle is the guiding part of molten steel flow in continuous casting mold. Optimizing the structure of submerged nozzle and improving the flow state of molten steel are of great significance for producing high quality cast billet.The flow field in the continuous casting mold with a…
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Artikel Jurnal
Absorption Behavior of TiN by Different Mold Slags of High Titanium Steel
To address fish-like substances caused by TiN inclusions during high-Ti steel continuous casting process， five potential mold slags for high titanium steel were designed. The TiN absorption behaviors and mechanisms by various mold slags were investigated through integrated in-situ observation，…
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Artikel Jurnal
Influence of the Decarburization Mode of the RH Refining Furnace on the Cleanliness of IF Steel
To improve the cleanliness and castability of IF steel， this study was conducted by 260 t RH vacuum furnace facility at Hanbao Steelmaking Plant ， HBIS Handan Iron and Steel Group Co. ， Ltd. Using 16-heats H-OLTB converter process as a case study， researchers employed sampling techniques，…
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Artikel Jurnal
Mechanical Properties and Corrosion Resistance of a Novel Economic Mining Chain Steel
At present the commonly used mining chain steel 23MnNiMoCr54 contains high valuable elements such as Ni and Mo， so the cost is high， which limits its wide application.In this study， a new type of economical mining chain steel was designed by reducing the contents of Ni and Mo， regulating the…
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Artikel Jurnal
Numerical Simulation of Macrosegregation in Continuous Casting Billet Based on Electric Furnace Smelting Waste Slag Steel
To effectively improve the macrosegregation of continuous casting small square billets based on waste slag steel smelting， a multiphase solidification model that can directly couple the behaviors of the melt flow， microstructure evolution， and solute transport in the whole continuous casting…
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Artikel Jurnal
Effect of Solution Temperature on Static Recrystallization Behavior of High Quality GH4738 Alloy
The effects of different solid solution temperature on the recrystallization behavior of as-forged high-quality GH4 738 superalloy were investigated by optical microscopy， field emission scanning electron microscopy （FE-SEM） and mechanical property tests. The results indicate that complete static…
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Artikel Jurnal
Multiphase Flow Simulation of the Slag Entrapment Behavior of Steel Ingots Influenced by the Inlet Angle of the Nozzle
As a typical defect formed during the ingot filling process， the slag entrapment directly affects the final quality of the steel ingot. The shape of the nozzle at the bottom of the ingot mold is a key factor influencing the flow of molten steel and the behavior of slag entrapment，in order to…
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Artikel Jurnal
Defect Characteristics and Process Optimization for Carbide Control in Continuous Casting of Cr12MoV Die Steel
Cr12MoV die steel is a typical high-carbon， high-chromium cold-work die steel. Due to its high carbon and chromium content， segregation during the late stages of solidification and the aggregation of eutectic chromium carbides are prone to occur during continuous casting， leading to defects such as…
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