steel research international最新文献_第8页

Study on Hot-Compressive Deformation Behavior and Microstructure Evolution of 12Cr10Co3MoWVNbNB Martensitic Steel

IF 1.9 3区材料科学

steel research international Pub Date : 2024-10-09 DOI: 10.1002/srin.202400467

Yuqi Wang, Yao Huang, Shan Yu, Chengkun Yang, Hexin Zhang, Chengzhi Zhao

{"title":"Study on Hot-Compressive Deformation Behavior and Microstructure Evolution of 12Cr10Co3MoWVNbNB Martensitic Steel","authors":"Yuqi Wang, Yao Huang, Shan Yu, Chengkun Yang, Hexin Zhang, Chengzhi Zhao","doi":"10.1002/srin.202400467","DOIUrl":"https://doi.org/10.1002/srin.202400467","url":null,"abstract":"Herein, to improve the microstructure homogeneity of 12Cr10Co3MoWVNbNB steel for turbine blades after forging, the hot deformation behavior and microstructure evolution of the steel are systematically investigated using a hot-compression experimental setup under the conditions of 950–1150 °C and strain rate of 0.001–10 s−1. A strain-compensated constitutive equation is established based on the flow curves and the accuracy of its prediction is verified. By combining hot processing map with microstructure observation, the optimal hot processing window is determined to be 1075–1150 °C and 1–10 s−1, within which the grain size can be refined to 14.24 μm. Electron backscatter diffraction is employed to investigate the microstructural evolution and dynamic recrystallization (DRX) nucleation mechanism of the deformed samples, revealing that discontinuous DRX characterized by strain-induced grain-boundary migration is the dominant nucleation mechanism. Additionally, the deformation conditions significantly affect the distribution of dislocation density and local misorientation, as well as the transition from low-angle grain boundaries to high-angle grain boundaries, which ultimately lead to the differences in DRX fraction and microstructure.","PeriodicalId":21929,"journal":{"name":"steel research international","volume":"96 2","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143113847","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

Effects of Pressure on Nitrogen Content and Solidification Structure during Pressurized Electroslag Remelting Process with Composite Electrode

IF 1.9 3区材料科学

steel research international Pub Date : 2024-10-09 DOI: 10.1002/srin.202400520

Haoyang Suo, Fubin Liu, Cong-Peng Kang, Huabing Li, Zhouhua Jiang, Xin Geng

{"title":"Effects of Pressure on Nitrogen Content and Solidification Structure during Pressurized Electroslag Remelting Process with Composite Electrode","authors":"Haoyang Suo, Fubin Liu, Cong-Peng Kang, Huabing Li, Zhouhua Jiang, Xin Geng","doi":"10.1002/srin.202400520","DOIUrl":"https://doi.org/10.1002/srin.202400520","url":null,"abstract":"The nitrogen content and solidification structure of the 1Mn18Cr18N ingots produced by the customized laboratory-scale vacuum induction melting furnace and the pressure electroslag remelting furnace (PESR) with novel composite electrode under different pressure and the same power consumption are compared and studied. The results show that there are perfectly uniform radial chromium and nitrogen profiles during the PESR process. The nitrogen uptake reaction in the PESR process with composite electrode takes place on the liquid metal film on the electrode. Nitrogen uptake could be improved by increasing the nitrogen partial pressure. In addition, the basin depth at a pressure of 0.1 and 1.22 MPa is about 41 and 38 mm, the angle of the grains with respect to the vertical axis is 35° and 31°, respectively. The flat metal basin profile resulted from the thermal resistance at the slag–mold interface decreasing with increasing pressure. Primary and secondary dendritic arm spacing (PDAS and SDAS) variations exhibit an increasing and subsequently decreasing the trend as they move further away from the center in a horizontal direction. Both PDAS and SDAS decrease with increasing pressure from 0.1 to 1.22 MPa.","PeriodicalId":21929,"journal":{"name":"steel research international","volume":"96 2","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143113846","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

Enhancing the Pitting Corrosion Resistance of Fe-36Ni Invar Alloy via Introducing Mg 通过引入镁增强 Fe-36Ni 英达合金的抗点蚀性

IF 1.9 3区材料科学

steel research international Pub Date : 2024-10-09 DOI: 10.1002/srin.202400578

Qi Wang, Yanwu Dong, Zhouhua Jiang, Zilin Yin, Yuning Wu, Haibiao Qing

引用次数: 0

Effect of Pressure on the Linear Friction Welding of a Tool Steel and a Low-Alloy Carbon Steel

IF 1.9 3区材料科学

steel research international Pub Date : 2024-10-08 DOI: 10.1002/srin.202400308

Oscar A. Zambrano, Javad Gholipour, Priti Wanjara, Jiaren (Jimmy) Jiang

{"title":"Effect of Pressure on the Linear Friction Welding of a Tool Steel and a Low-Alloy Carbon Steel","authors":"Oscar A. Zambrano, Javad Gholipour, Priti Wanjara, Jiaren (Jimmy) Jiang","doi":"10.1002/srin.202400308","DOIUrl":"https://doi.org/10.1002/srin.202400308","url":null,"abstract":"This study investigates the effect of pressure (burn-off and forging) on the mechanical properties of the joint between a wear-resistant tool steel and a low-alloy steel using linear friction welding. The authors have previously demonstrated the feasibility of joining these dissimilar materials, but the impact of pressure on the mechanical properties of the bimaterial joint remains unclear. To address this, weld samples are prepared using different pressures and are characterized through microstructural analysis, microhardness, tensile testing, and fractography. The results show that the strength of the joint between the wear-resistant tool steel and the low-alloy carbon steel increases as the pressure increases up to a certain point, after which a decrease is observed. The highest joint strength is achieved at a pressure of 360 MPa. The microhardness profile measurement reveals a distinct transition zone at the interface between the two materials, with varying hardness values. The hardness of the low-alloy carbon steel increases near the interface, while that of the wear-resistant tool steel decreases. This transition zone is found to be narrower at higher pressures. Microstructural characterization shows that the grain structure near the interface differs from that of the starting base materials.","PeriodicalId":21929,"journal":{"name":"steel research international","volume":"96 2","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/srin.202400308","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143113546","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

Pre-oxidized Recycled MgO–Steel Composite Material for Possible Application in Cryolitic Melts

IF 1.9 3区材料科学

steel research international Pub Date : 2024-10-08 DOI: 10.1002/srin.202400435

Serhii Yaroshevskyi, Nora Brachhold, Piotr Malczyk, Patrick Gehre, Christos G. Aneziris

{"title":"Pre-oxidized Recycled MgO–Steel Composite Material for Possible Application in Cryolitic Melts","authors":"Serhii Yaroshevskyi, Nora Brachhold, Piotr Malczyk, Patrick Gehre, Christos G. Aneziris","doi":"10.1002/srin.202400435","DOIUrl":"https://doi.org/10.1002/srin.202400435","url":null,"abstract":"Recycled MgO–C lining bricks and 316L stainless steel are used to manufacture composite material for inert anode samples for aluminum electrolysis cell. The microstructure of the composite material is characterized after preoxidation thermal treatments at 800, 900, and 1000 °C as well as in its sintered state. Preoxidation (PO) process is designed to enhance the material's corrosion resistance in molten cryolite environments by developing robust Fe–Mg–O, Fe–Cr–O- containing phases. Analytical techniques including scanning electron microscopy, electron backscatter diffraction, and energy dispersive X-ray spectrometry are applied to characterize the phase formation, revealing the potential of these composites for use as inert anodes in aluminum electrolysis cells. PO at 800 °C is not sufficient to form adequate protective oxide layers. Whereas, PO at 900 and 1000 °C leads to the formation of protective oxide layers containing Mg–O Fe–O halite-like solid solutions and (Cr,Fe)3O4 spinel phase. Sample, preoxidized at 1000 °C is sealed in Mg–Fe–O spinel phase.","PeriodicalId":21929,"journal":{"name":"steel research international","volume":"96 2","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/srin.202400435","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143113545","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

Effect of Electromagnetic Stirring on Solidification Structure and Central Porosity of Large-Sized Round Bloom in Continuous Casting

IF 1.9 3区材料科学

steel research international Pub Date : 2024-10-08 DOI: 10.1002/srin.202400595

Peng Lan, Liang Li, Songwei Wang, Jiaquan Zhang

{"title":"Effect of Electromagnetic Stirring on Solidification Structure and Central Porosity of Large-Sized Round Bloom in Continuous Casting","authors":"Peng Lan, Liang Li, Songwei Wang, Jiaquan Zhang","doi":"10.1002/srin.202400595","DOIUrl":"https://doi.org/10.1002/srin.202400595","url":null,"abstract":"The effect of strand (S-) and final (F-) electromagnetic stirring (EMS) on solidification structure characteristic of a φ690 mm continuously cast round bloom has been investigated industrially and theoretically. The newly designed S1-EMS equipped just below the foot zone takes great effect on both equiaxed ratio and distribution alignment, as well as central porosity. Larger current S1-EMS leads to higher equiaxed ratio, more symmetrical equiaxed zone, and smaller diameter of central porosity, and the effect is much more obvious than conventional S2-EMS and F-EMS. It is also noticed that there should be a saturation effect of S1-EMS on the promotion of equiaxed dendrite nucleation. The S2-EMS is beneficial for the expanding of equiaxed zone and improving of central porosity. When S1-EMS is weak, strong S2-EMS results in more asymmetrical equiaxed zone. However, when S-EMS is strong, strong S2-EMS results in more symmetrical distribution of equiaxed zone. The F-EMS takes a little impact on the expanding of equiaxed zone in the large-sized round bloom, and almost no effect on the alignment. The central porosity, however, is improved by F-EMS with the help of decrease in temperature gradient and compensation of solidification contraction.","PeriodicalId":21929,"journal":{"name":"steel research international","volume":"96 2","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143113547","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

Research on Dynamic Mechanical Behavior of Reinforcing Steel Under Ultrahigh Strain Rate

IF 1.9 3区材料科学

steel research international Pub Date : 2024-10-07 DOI: 10.1002/srin.202400633

Haodong Sun, Chaorun Si, Junbiao Wang

引用次数: 0

Effects of Cu Coating Addition on Mechanical Properties of Vacuum Brazed Joints

IF 1.9 3区材料科学

steel research international Pub Date : 2024-10-07 DOI: 10.1002/srin.202400286

Leilei Wang, Nian Li, Xinlong Wei, Xiang Ling, Xiaoping Su, Yichuan Wang

{"title":"Effects of Cu Coating Addition on Mechanical Properties of Vacuum Brazed Joints","authors":"Leilei Wang, Nian Li, Xinlong Wei, Xiang Ling, Xiaoping Su, Yichuan Wang","doi":"10.1002/srin.202400286","DOIUrl":"https://doi.org/10.1002/srin.202400286","url":null,"abstract":"In this study, a copper brazing filler metal coating is fabricated on a 304 stainless steel (304SS) substrate using an electroplating technique. The effect of using electroplated copper brazing filler metal coatings compared to pure copper foil of the same thickness for vacuum brazing of stainless steel joints is investigated. The microstructure and microhardness of the brazed joints are characterized using X-ray diffraction (XRD), scanning electron microscopy (SEM), and a Vickers hardness tester. The shear strength of the brazed joints is measured using an INSTRON 5869 universal testing machine. The results indicate that the electroplated Cu coating is dense, predominantly with a single cubic phase, with a few copper particles aggregating on the surface. Under electroplating conditions of 20 mA cm−2 for 1 h, the coating thickness was 56 μm. The shear strength of the brazed joint with this coating reached a maximum of 333.7 MPa, which is higher than that of a brazed joint with a 60 μm thick copper foil, which exhibits a shear strength of 303.2 MPa. The shear strength of the brazed joints shows an initial increase followed by a decrease as current density and electroplating time increase. This study provides significant technical support for brazing complex shapes or precision components. It suggests a method to simplify the brazing process, reduce production costs, and enhance the strength of brazed joints.","PeriodicalId":21929,"journal":{"name":"steel research international","volume":"96 2","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143113130","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

Oxygen Content Control in the Electroslag Remelting Process: An Incremental Learning Strategy Based on Optimized Wasserstein Generative Adversarial Network with Gradient Penalty Data Augmentation

IF 1.9 3区材料科学

steel research international Pub Date : 2024-10-07 DOI: 10.1002/srin.202400598

Xi Chen, Yanwu Dong, Zhouhua Jiang, Yuxiao Liu, Jia Wang

{"title":"Oxygen Content Control in the Electroslag Remelting Process: An Incremental Learning Strategy Based on Optimized Wasserstein Generative Adversarial Network with Gradient Penalty Data Augmentation","authors":"Xi Chen, Yanwu Dong, Zhouhua Jiang, Yuxiao Liu, Jia Wang","doi":"10.1002/srin.202400598","DOIUrl":"https://doi.org/10.1002/srin.202400598","url":null,"abstract":"Electroslag remelting (ESR) is essential for producing high-end special steel, but its complex process and numerous influencing factors make quality control challenging. This study addresses oxygen content control during ESR using a big data machine learning approach. An incremental learning strategy is proposed based on an optimized Wasserstein generative adversarial network with gradient penalty (WGAN-GP) for data enhancement, focusing on G20Cr2Ni4A bearing steel. The WGAN-GP model enhances time-series data and metadata, utilizing long short-term memory networks, fully connected networks, and attention mechanisms. The effectiveness of data enhancement is verified using a deep neural network classifier and statistical methods. Data is divided into historical and data streams, with an incremental learning strategy based on histogram gradient boosting regression trees to prevent catastrophic forgetting and improve efficiency through knowledge distillation and real-time hyperparameter adjustment. Results show that the data augmentation method significantly improves model generalization and accuracy in small sample metallurgy. The incremental learning strategy enhances prediction accuracy for oxygen content, contributing to better cleanliness quality of electroslag steel. This study offers a novel approach for addressing small sample challenges in metallurgical processes.","PeriodicalId":21929,"journal":{"name":"steel research international","volume":"96 2","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143113133","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

Data-Driven Approach Using a Hybrid Model for Predicting Oxygen Consumption in Argon Oxygen Decarburization Converter

IF 1.9 3区材料科学

steel research international Pub Date : 2024-10-07 DOI: 10.1002/srin.202400600

Li Mingming, Chen Xihong, Liu Dongxu, Shao Lei, Zhou Wentao, Zou Zongshu

{"title":"Data-Driven Approach Using a Hybrid Model for Predicting Oxygen Consumption in Argon Oxygen Decarburization Converter","authors":"Li Mingming, Chen Xihong, Liu Dongxu, Shao Lei, Zhou Wentao, Zou Zongshu","doi":"10.1002/srin.202400600","DOIUrl":"https://doi.org/10.1002/srin.202400600","url":null,"abstract":"Accurately controlling oxygen supply in argon oxygen decarburization (AOD) process is invariably desired for efficient decarburization and reducing alloying elements consumption. Herein, a data-driven approach using a hybrid model integrating oxygen balance mechanism model and a two-layer Stacking ensemble learning model is successfully established for predicting oxygen consumption in AOD converter. In this hybrid model, the oxygen balance mechanism model is used to calculate the oxygen consumption based on industrial data. Then the model calculation error is compensated using an optimized two-layer Stacking model that is identified as (random forest (RF) + XGBoost + ridge regression)-RF model by evaluating different hybrid model frameworks and Bayesian optimization. The results show that, in comparison to conventional prediction model based on oxygen balance mechanism, the present hybrid model greatly improves the control accuracy of oxygen consumption in AOD industrial production. The hit rate and mean absolute error of the present hybrid model for predicting oxygen consumption are 84.8% and 330 Nm3, respectively, within absolute oxygen consumption prediction error ±600 Nm3 (relative error of 3.8%). This data-driven approach using the present hybrid model provides one pathway to efficient oxygen consumption control in AOD process.","PeriodicalId":21929,"journal":{"name":"steel research international","volume":"96 2","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143113134","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