steel research international最新文献_第6页

Recycling-Induced Copper Contamination of a 42CrMo4 Quench and Tempering Steel—Scaling and Susceptibility to Hot Shortness 42CrMo4调质钢的回收铜污染及对热短的敏感性

IF 2.3 3区材料科学

steel research international Pub Date : 2026-08-11 Epub Date: 2025-01-06 DOI: 10.1002/srin.202400844

Alexander Gramlich, Sindokht Shayan, Nima Babaei, Aleksei Klubakov, Lena Patterer, Ulrich Krupp, Hauke Springer

{"title":"Recycling-Induced Copper Contamination of a 42CrMo4 Quench and Tempering Steel—Scaling and Susceptibility to Hot Shortness","authors":"Alexander Gramlich, Sindokht Shayan, Nima Babaei, Aleksei Klubakov, Lena Patterer, Ulrich Krupp, Hauke Springer","doi":"10.1002/srin.202400844","DOIUrl":"https://doi.org/10.1002/srin.202400844","url":null,"abstract":"Residual Cu in steel, stemming from electrified products, is not only difficult to remove but is well known for its potential to impact the surface quality, property profile, and production efficiency by causing cracks during thermomechanical processing of steels. Less well understood, however, are the precise mechanisms of hot shortness taking place in specific steel grades in view of their complex chemical concentrations affecting oxidation kinetics, phase formation, and elemental partitioning. Furthermore, evaluating the susceptibility of hot shortness is notoriously difficult due to the elevated temperatures and oxidizing atmospheres, and no widely accepted testing methodology has been established yet. This article aims to contribute to both fields through investigations on the effects of 1 wt% Cu addition to the medium carbon quench and tempering steel 42CrMo4. Two different hot tensile test variants are performed and resulting microstructures and oxide layers are analyzed. Electron backscatter diffraction and energy-dispersive spectroscopy measurements reveal the formation of wuestite and magnetite, as well as a complex layer containing multiple oxide types. Metallic Cu is found embedded in this multiphase layer as well as within the matrix, decorating internally formed oxides. The complex interactions between oxide scale formation and the liquid metallic copper are outlined and discussed.","PeriodicalId":21929,"journal":{"name":"steel research international","volume":"97 8","pages":"4261-4269"},"PeriodicalIF":2.3,"publicationDate":"2026-08-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/srin.202400844","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148704321","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Contents: steel research int. 8/2026 内容：钢铁研究；8/2026

IF 2.3 3区材料科学

steel research international Pub Date : 2026-08-11 DOI: 10.1002/srin.70612

引用次数: 0

A Numerical Study on the Production Status Changes of Hydrogen-Based Shaft Furnace during H2 Replacement of Coke Oven Gas 焦炉煤气换氢过程中氢基竖炉生产状态变化的数值研究

IF 2.3 3区材料科学

steel research international Pub Date : 2026-08-11 Epub Date: 2025-09-21 DOI: 10.1002/srin.202500074

Zhengjian Liu, Shaofeng Lu, Yaozu Wang, Jianliang Zhang, Jiaqi Li, Qiang Cheng

{"title":"A Numerical Study on the Production Status Changes of Hydrogen-Based Shaft Furnace during H2 Replacement of Coke Oven Gas","authors":"Zhengjian Liu, Shaofeng Lu, Yaozu Wang, Jianliang Zhang, Jiaqi Li, Qiang Cheng","doi":"10.1002/srin.202500074","DOIUrl":"https://doi.org/10.1002/srin.202500074","url":null,"abstract":"To address the increasingly stringent climate policies, steel production is inevitably moving toward a fossil-free future, and the hydrogen-based shaft furnace process is no exception. Natural gas and coke oven gas (COG), which currently serve as the primary gas sources, will inevitably be replaced by green H2 in the future. This study investigates the operational changes of a hydrogen-based shaft furnace during the transition from COG to green hydrogen as the reducing gas. A numerical simulation model is used to analyze the effects of varying COG/H2 ratios and top gas pressures on production status. The results demonstrate that as the ratio of H2 increases, the endothermic reactions diminish. This reduces the temperature at the upper part of the reducing zone while increasing the temperature in the remaining areas. It also promotes an increase in the metallization degree but significantly reduces the carbon content. These changes have important implications for energy consumption and power on time in the Electric Arc Furnace (EAF) process. Additionally, increasing the top gas pressure not only enhances the metallization degree and carbon content but also reduces the diameter of fine powder entrained by the gas flow, thereby improving the yield.","PeriodicalId":21929,"journal":{"name":"steel research international","volume":"97 8","pages":"4085-4096"},"PeriodicalIF":2.3,"publicationDate":"2026-08-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148704337","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Double Slag Operating Standard for Mitigation of CO2 Emissions in Basic Oxygen Steelmaking 降低碱性氧炼钢CO2排放的双渣操作标准

IF 2.3 3区材料科学

steel research international Pub Date : 2026-08-11 Epub Date: 2026-03-07 DOI: 10.1002/srin.202501093

Kyung Hwan Kim, Joo Hyun Park

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Influence of an Electromagnetic Field on Direct Reduction of Iron Oxide Using Hydrogen as a Reducing Agent 电磁场对氢作还原剂直接还原氧化铁的影响

IF 2.3 3区材料科学

steel research international Pub Date : 2026-08-11 Epub Date: 2026-03-30 DOI: 10.1002/srin.202501124

Mykyta Levchenko, Oleksandr Gryshyn, Oleksandr Velychko, Oleksandr Grek, Anzhela Nadtochiy, Olena Volkova

{"title":"Influence of an Electromagnetic Field on Direct Reduction of Iron Oxide Using Hydrogen as a Reducing Agent","authors":"Mykyta Levchenko, Oleksandr Gryshyn, Oleksandr Velychko, Oleksandr Grek, Anzhela Nadtochiy, Olena Volkova","doi":"10.1002/srin.202501124","DOIUrl":"https://doi.org/10.1002/srin.202501124","url":null,"abstract":"This work investigates the effect of electromagnetic fields (EMF) of varying frequencies on the reduction process of iron oxides and industrial iron ore in a hydrogen atmosphere using thermogravimetric analysis. Both extremely low-frequency (50 Hz) and middle-frequency (25 kHz) EMFs were found to increase the reduction degree and accelerate the reduction reaction compared with experiments without EMF. The application of extremely low-frequency EMF did not cause additional thermal heating of investigated samples. However, with middle-frequency EMF, heating of charged material was observed, which was effectively compensated for by the furnace's automatic power regulation. Experiments with industrial iron ore confirmed that EMF application had a positive effect on reduction process even above the Curie temperature, indicating that the effect is not governed by magnetic properties of iron. These findings demonstrate that EMF-assisted hydrogen reduction can enhance reaction kinetics and reduce hydrogen consumption, offering a promising pathway toward more energy-efficient and sustainable steelmaking.","PeriodicalId":21929,"journal":{"name":"steel research international","volume":"97 8","pages":"4119-4125"},"PeriodicalIF":2.3,"publicationDate":"2026-08-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/srin.202501124","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148704309","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Aligning Real-Time Recurrence Computational Fluid Dynamics Simulations with Plant Data for the Ruhrstahl–Heraeus Degassing Process of Steel Ruhrstahl-Heraeus脱气过程的实时递归计算流体动力学模拟与工厂数据的匹配

IF 2.3 3区材料科学

steel research international Pub Date : 2026-08-11 Epub Date: 2025-10-30 DOI: 10.1002/srin.202500395

Xiaomeng Zhang, Maria Thumfart, Roman Rössler, Stefan Pirker

{"title":"Aligning Real-Time Recurrence Computational Fluid Dynamics Simulations with Plant Data for the Ruhrstahl–Heraeus Degassing Process of Steel","authors":"Xiaomeng Zhang, Maria Thumfart, Roman Rössler, Stefan Pirker","doi":"10.1002/srin.202500395","DOIUrl":"https://doi.org/10.1002/srin.202500395","url":null,"abstract":"This study employs data-assisted, computationally efficient recurrence computational fluid dynamics (rCFD) to predict hydrogen degassing of steel in a Ruhrstahl–Heraeus (RH) vacuum process. Multiphase CFD simulations of the 3D steel flow are first performed, with the flow's dynamic nature assessed by recurrence plots and plant video analysis. From these simulations, databases representing 20 s of process time are derived for the subsequent rCFD simulation of steel alloying and hydrogen degassing. In the first case, rCFD predictions are validated against expensive CFD reference simulations, yielding excellent agreement for alloy homogenization. Secondly, rCFD simulations of hydrogen degassing are compared with plant off-gas hydrogen measurements. While rCFD reproduces the main degassing characteristics, it overpredicts the overall degassing time, likely due to an underestimated steel circulation rate in the base CFD. An adaptive rCFD methodology is therefore introduced to account for varying circulation rates, enabling quantitative alignment with plant data. In all cases, rCFD runs about three orders of magnitude faster than full CFD, enabling near real-time simulations at full grid resolution (300 s for a 200 s alloying case; 45 min for a 35 min degassing process). Together with its adaptability, this makes rCFD a promising candidate for digital twin monitoring of the RH process.","PeriodicalId":21929,"journal":{"name":"steel research international","volume":"97 8","pages":"4207-4222"},"PeriodicalIF":2.3,"publicationDate":"2026-08-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/srin.202500395","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148704423","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

In Situ Investigation of Microstructure Evolution and Stress Generation During Low-Pressure Carburizing and Quenching by Means of Synchrotron X-Ray Diffraction 用同步x射线衍射原位研究低压渗碳淬火过程中的组织演变和应力产生

IF 2.3 3区材料科学

steel research international Pub Date : 2026-07-03 Epub Date: 2026-01-22 DOI: 10.1002/srin.202501083

Ogün Baris Tapar, Michael Georg Zürn, Jens Gibmeier, Antonio Carlos de Figueiredo Silveira, Matthias Steinbacher, Norbert Schell, Jérémy Epp

{"title":"In Situ Investigation of Microstructure Evolution and Stress Generation During Low-Pressure Carburizing and Quenching by Means of Synchrotron X-Ray Diffraction","authors":"Ogün Baris Tapar, Michael Georg Zürn, Jens Gibmeier, Antonio Carlos de Figueiredo Silveira, Matthias Steinbacher, Norbert Schell, Jérémy Epp","doi":"10.1002/srin.202501083","DOIUrl":"https://doi.org/10.1002/srin.202501083","url":null,"abstract":"Low-pressure carburizing (LPC) is a thermochemical process that enriches steel surfaces with carbon. While LPC is already used in industry, there are still aspects that offer opportunities for optimization if the necessary basic process understanding is provided. The present study quantifies the effect of LPC process parameters on the material state of different steel grades. For this purpose, in situ carburizing and quenching experiments are performed in a custom-built chamber for synchrotron X-ray diffraction at the German Electron Synchrotron in Hamburg. During carbon enrichment, carbon saturation and carbide formation are observed, slowing acetylene decomposition. Carbides that initially form at the surface dissolve in later diffusion steps. The kinetics of carbide formation and dissolution strongly depend on steel grade and carbide size. Quenching experiments further enable systematic analysis of phase-specific stresses at the surface and subsurface. The influence of transformation temperature across the carbon gradient is tracked, revealing differences in maximum stresses in both austenite and martensite. A direct correlation is identified between the local martensite fraction and the generated stresses within the carburized layer. This work provides new experimental insights into carbon uptake, carbide evolution, and stress development during LPC, offering pathways for process optimization across different steel types.","PeriodicalId":21929,"journal":{"name":"steel research international","volume":"97 7","pages":"3642-3662"},"PeriodicalIF":2.3,"publicationDate":"2026-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/srin.202501083","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148386421","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A Cross-Attentive Gated Fusion Model for Steel Billet Tapping Temperature Prediction in Heating Furnace 加热炉钢坯出钢温度预测的交叉关注门控熔合模型

IF 2.3 3区材料科学

steel research international Pub Date : 2026-07-03 Epub Date: 2026-03-11 DOI: 10.1002/srin.202500458

Junyu Zhao, Xiong Xiao, Yongjun Zhang, Jian Shao, Xiaozhan Li, Yuntao Zhao

{"title":"A Cross-Attentive Gated Fusion Model for Steel Billet Tapping Temperature Prediction in Heating Furnace","authors":"Junyu Zhao, Xiong Xiao, Yongjun Zhang, Jian Shao, Xiaozhan Li, Yuntao Zhao","doi":"10.1002/srin.202500458","DOIUrl":"https://doi.org/10.1002/srin.202500458","url":null,"abstract":"Highly accurate prediction of steel billet tapping temperature is an essential technology for improving quality of steel products. However, the mechanism model lacks adaptability to the complex production environment. A data-driven model typically utilizes a single kind of input feature, which fails to establish sophisticated connections between input attributes and prediction objects. Therefore, a novel billets tapping temperature prediction model called cross-attentive gated fusion network (CA-GFNet), which integrates static and dynamic data from the heating furnace, has been designed. In the proposed model, a long short-term memory neural network is leveraged to process dynamic variables, a multilayer perceptron is employed to process static variables, a cross-attention module is developed to establish correct connections between two types of features and generate interactive features, and a gated fusion module is used to suppress redundant interactive features. Results show that the hit rate of CA-GFNet is 17.6% higher than models using a single type of feature in the predicted error range [−5, 5 °C]. Additionally, the discrepancies in hit rates across three error ranges are within 0.5% when input variables are replaced by a new dataset from other furnaces. These experiments validate the superiority of the proposal in prediction accuracy and generalization.","PeriodicalId":21929,"journal":{"name":"steel research international","volume":"97 7","pages":"3521-3535"},"PeriodicalIF":2.3,"publicationDate":"2026-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148386555","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Microstructural Modulation through Process Control Leading to Ultrastrong Ductile Fe–10Al–15Mn–0.8C–5Ni wt% Low-Density Steel 通过工艺控制的组织调制制备出具有超强韧性的Fe-10Al-15Mn-0.8C-5Ni wt%低密度钢

IF 2.3 3区材料科学

steel research international Pub Date : 2026-07-03 Epub Date: 2026-01-16 DOI: 10.1002/srin.202501163

Sadhan Ghosh, Sourav Das

{"title":"Microstructural Modulation through Process Control Leading to Ultrastrong Ductile Fe–10Al–15Mn–0.8C–5Ni wt% Low-Density Steel","authors":"Sadhan Ghosh, Sourav Das","doi":"10.1002/srin.202501163","DOIUrl":"https://doi.org/10.1002/srin.202501163","url":null,"abstract":"The article involves synthesis, characterization, and mechanical property studies of Fe–10Al–15Mn–0.8C–5Ni wt% steel, prepared by hot rolling, cold rolling (CR), and annealing treatment. A partial substitution of iron (density, 7.8 g/cc) with a lighter element like Al (density, 2.7 g/cc) is strategic to fabricate the low density steel, following a thumb rule that 1 wt% Al additions in steel lead to the density reduction of roughly 1.2%. However, the sample processing imposes challenges, based on the microstructure that an excessive use of Al in the alloy chemistry results in ≈27% δ-ferrite during solidification-casting. The hot and CR transforms the δ into B2 stringer bands, that is, an Fe-Al-based intermetallic phase. A bamboo-like morphology of the B2-stringer after heat treatment causes a premature failure of the austenitic steel. With proper process control, the article finds a way to circumvent the issue. The outcome results in nearly 1 GPa yield strength, 28% total elongation, and over 1.7 kJ mol−1 (or 238.4 J cm−3) toughness, tantamount to the development of crack-resistant ultrahigh strength steel for the automotive body in white. The current article also analyzes intra- and intergranular precipitation of the B2 second-phase, tailoring the mechanical properties.","PeriodicalId":21929,"journal":{"name":"steel research international","volume":"97 7","pages":"3503-3510"},"PeriodicalIF":2.3,"publicationDate":"2026-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148386562","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Mechanical and Microstructural Characterization of AISI 410 Stainless Steel–Inconel 625 Functionally Graded Bimetallic Wall Fabricated by Wire Arc Additive Manufacturing 电弧增材制造AISI 410不锈钢- inconel 625功能梯度双金属壁的力学和显微组织表征

IF 2.3 3区材料科学

steel research international Pub Date : 2026-07-03 Epub Date: 2026-01-27 DOI: 10.1002/srin.202501158

Arun Prakash Rangasamy, Pradeep Kumar Jeyaraj, Sivakumar Nallappan Sellappan

{"title":"Mechanical and Microstructural Characterization of AISI 410 Stainless Steel–Inconel 625 Functionally Graded Bimetallic Wall Fabricated by Wire Arc Additive Manufacturing","authors":"Arun Prakash Rangasamy, Pradeep Kumar Jeyaraj, Sivakumar Nallappan Sellappan","doi":"10.1002/srin.202501158","DOIUrl":"https://doi.org/10.1002/srin.202501158","url":null,"abstract":"This work investigates the mechanical and microstructural properties of a functionally graded bimetallic wall composed of American Iron and Steel Institute (AISI) 410 stainless steel (SS) and Inconel 625, produced by Wire Arc Additive Manufacturing (WAAM). Mechanical assessments, including tensile, impact, hardness, wear, and corrosion tests, were conducted on AISI 410 SS, Inconel 625, and the functionally graded interface region. The interface exhibits strong mechanical performance, showing a tensile strength of 605.79 MPa and an impact energy of 126 J. Hardness Rockwell C (HRC) increases at the interface to 92.5 HRC, compared to 85 HRC in AISI 410 SS and 84 HRC in the Inconel 625 region. Wear testing indicates weight losses of 0.097 g for AISI 410 SS, 0.064 g for the interface, and 0.044 g for Inconel 625, confirming enhanced wear resistance at the graded region. Corrosion evaluation reveals weight losses of 0.007 g for AISI 410 SS, 0.001 g for the interface, and 0.004 g for Inconel 625, demonstrating excellent corrosion resistance at the interface. Microstructural characterization shows uniform, defect-free layer deposition. Inconel 625 exhibits a columnar dendritic structure, whereas AISI 410 SS shows a fine cellular microstructure. Overall, the AISI 410 SS–Inconel 625 functionally graded material (FGM) exhibits superior combined properties suitable for engineering applications.","PeriodicalId":21929,"journal":{"name":"steel research international","volume":"97 7","pages":"3674-3686"},"PeriodicalIF":2.3,"publicationDate":"2026-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148386574","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0