steel research international最新文献_第10页

Computational Fluid Dynamics-Discrete Element Method Study of Microstructure and Mechanical Characteristics of the Blast Furnace Raceway with Polyhedral Particles 高炉多面体颗粒滚道微观结构与力学特性的计算流体力学-离散元法研究

IF 2.5 3区材料科学

steel research international Pub Date : 2025-01-17 DOI: 10.1002/srin.202400283

Lei Zhao, Liangyu Chen, Fei Yuan, Lei Wang, Jiaocheng Ma

{"title":"Computational Fluid Dynamics-Discrete Element Method Study of Microstructure and Mechanical Characteristics of the Blast Furnace Raceway with Polyhedral Particles","authors":"Lei Zhao, Liangyu Chen, Fei Yuan, Lei Wang, Jiaocheng Ma","doi":"10.1002/srin.202400283","DOIUrl":"https://doi.org/10.1002/srin.202400283","url":null,"abstract":"The raceway is the energy source and core reaction region in the blast furnace (BF). This study creates a polyhedral particle based on the BF charge. The effects of particle shape, tuyere velocity, and deadman resistance on the microstructure and mechanical properties of the raceway are analyzed based on the discrete element method-computational fluid dynamics method. The results show that with a velocity of 200 m s−1, the pressure gradient and drag forces of polyhedral particles are 60.94% and 70.06% higher than those of spherical particles, and the height and depth of the raceway are 26.76% and 57.14% of those of spherical particles, respectively. The raceway size is positively proportional to the velocity and inversely proportional to the convective heat transfer rate. The deadman particle diameter and porosity determine the distribution of central and edge gas flow and raceway size, with porosity having a more significant impact on the raceway size. These findings contribute to understanding the dynamics and thermodynamic behavior of irregular particle systems in the raceway.","PeriodicalId":21929,"journal":{"name":"steel research international","volume":"96 9","pages":"271-283"},"PeriodicalIF":2.5,"publicationDate":"2025-01-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145038220","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

Study on the Temperature Uniformity of Sprocket Surface Based on Electromagnetic Guidance 基于电磁制导的链轮表面温度均匀性研究

IF 2.5 3区材料科学

steel research international Pub Date : 2025-01-16 DOI: 10.1002/srin.202400874

Yuqian Zhao, Yaolong Ouyang, Shan Wang, Zehui Zheng, Yi Han, Yao Xiao

{"title":"Study on the Temperature Uniformity of Sprocket Surface Based on Electromagnetic Guidance","authors":"Yuqian Zhao, Yaolong Ouyang, Shan Wang, Zehui Zheng, Yi Han, Yao Xiao","doi":"10.1002/srin.202400874","DOIUrl":"https://doi.org/10.1002/srin.202400874","url":null,"abstract":"Sprockets, as the most important component of chain drives, are widely used in low-speed and heavy-duty engineering equipment. Due to the complex contour shape, it is difficult to obtain a uniform temperature layer before quenching, which limits the strength, hardness, wear resistance, and service life of the sprocket. Therefore, the distribution of the temperature gradient of the sprocket in asynchronous dual-frequency induction heating is investigated. A bilateral arrangement method of magnetizers is proposed to guide the spatial magnetic field distribution and control the surface temperature uniformity of the sprocket. Reinforced and shielded magnetizers are designed, revealing the characteristic effect of the main structural parameters of these magnetizers on the temperature uniformity of the sprocket. The results indicate that using these magnetizers during the medium-frequency heating stage can change the heat source distribution characteristics at the top and bottom of the sprocket tooth. The sprocket obtains a more uniform temperature layer during the subsequent high-frequency heating stage. The method reduces the temperature difference of the sprocket tooth profile by 53.2%. It is proven that the designed magnetizers and the bilateral arrangement method effectively improve the uniformity of the temperature distribution of the sprocket.","PeriodicalId":21929,"journal":{"name":"steel research international","volume":"96 9","pages":"176-189"},"PeriodicalIF":2.5,"publicationDate":"2025-01-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145038402","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

A New Approach to Predict the Mechanical Properties of Hot-Rolled Strip Based on Multi-Dimensional Feature Weighted Similarity and Integrated Just-In-Time Learning 基于多维特征加权相似度和集成即时学习的热轧带钢力学性能预测新方法

IF 2.5 3区材料科学

steel research international Pub Date : 2025-01-16 DOI: 10.1002/srin.202400872

Fang-Jie Lan, Jian-Hua Liu, Yang He, Yuan-Mei Yang, Lin Zhang, Shuai Zhang, Feng Xu, Xiao-Bo Yang

{"title":"A New Approach to Predict the Mechanical Properties of Hot-Rolled Strip Based on Multi-Dimensional Feature Weighted Similarity and Integrated Just-In-Time Learning","authors":"Fang-Jie Lan, Jian-Hua Liu, Yang He, Yuan-Mei Yang, Lin Zhang, Shuai Zhang, Feng Xu, Xiao-Bo Yang","doi":"10.1002/srin.202400872","DOIUrl":"https://doi.org/10.1002/srin.202400872","url":null,"abstract":"Predicting the mechanical properties of hot-rolled strip poses significant challenges due to the intricate interplay of multi-dimensional similarities within sample analysis and the time-varying characteristics of actual production data. Relying on single similarity metrics to select appropriate samples becomes inadequate, hindering timely and accurate predictions. To address these issues, in this article, a new approach is proposed to predict the mechanical properties of hot-rolled strip based on combining multi-dimensional-feature-weighted similarity (MDFWS) and integrated just-in-time learning (IJITL). First, the feature weights based on multiple methods are combined with the time weight as the similarity measure to select the relevant samples, respectively. Subsequently, the linear local models are constructed based on the selected relevant samples to predict the query data. Finally, the output of each local model is given differentiated weights based on its performance on the validation set, and the final prediction result is obtained through an integrated learning strategy. Furthermore, a cumulative similarity factor is introduced to screen the optimal dataset for local models, and a similarity threshold is set to reduce the frequency of model updates. In the experimental results, it is demonstrated that the proposed MDFWS-IJITL model excels in predicting the mechanical properties of hot-rolled strip, offering higher predictive accuracy and better adaptability compared to traditional global modeling methods and JITL models.","PeriodicalId":21929,"journal":{"name":"steel research international","volume":"96 9","pages":"249-261"},"PeriodicalIF":2.5,"publicationDate":"2025-01-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145038404","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

A Method of Prediction and Control of NOx Emission Reduction in Pure Oxygen Combustion Reheating Furnace 纯氧燃烧加热炉NOx减排预测与控制方法

IF 2.5 3区材料科学

steel research international Pub Date : 2025-01-16 DOI: 10.1002/srin.202400323

Yutao Zheng, Zhengjun Yu, Tao Chi, Xue-Bo Chen

{"title":"A Method of Prediction and Control of NOx Emission Reduction in Pure Oxygen Combustion Reheating Furnace","authors":"Yutao Zheng, Zhengjun Yu, Tao Chi, Xue-Bo Chen","doi":"10.1002/srin.202400323","DOIUrl":"https://doi.org/10.1002/srin.202400323","url":null,"abstract":"When the traditional double-cross-limiting control method is used to control the furnace temperature of the full-oxygen heating furnace, the strong oxidizing nature of pure oxygen often causes the emissions of nitrogen oxides (NOx) to exceed the standard. In order to solve this problem, a new inverse double-cross-limiting predictive control method is proposed in this article. First, the reverse double-cross-limiting control method sets itself apart from the traditional one by initially opening the pure oxygen valve followed by the natural gas valve. In this way, by curbing excessive oxygen levels, the issue of NOx emissions surpassing regulatory limits can be effectively addressed. Second, based on bidirectional long and short memory neural network (BiLSTM) and Sparrow Search Algorithm (SSA) optimization, a new SSA-BiLSTM prediction model is proposed to monitor and predict the change trend of NOx in real time. Compared with other five prediction models, the SSA-BiLSTM prediction model has advantages in determination coefficient, root mean square error, and other evaluation indicators. Finally, the experimental results show that the SSA-BiLSTM prediction and inverse double-cross-limiting control method can effectively control the NOx emission below 40 mg m−3 while ensuring the normal temperature rise of the heating furnace.","PeriodicalId":21929,"journal":{"name":"steel research international","volume":"96 9","pages":"238-248"},"PeriodicalIF":2.5,"publicationDate":"2025-01-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145038401","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

Flow Behavior and Solute Distribution in the Second Cooling Zone of Continuous Casting of GCr15 Bearing Steel Regulated by Combined Magnetic Fields 组合磁场调控下GCr15轴承钢连铸二冷区流动行为及溶质分布

IF 2.5 3区材料科学

steel research international Pub Date : 2025-01-14 DOI: 10.1002/srin.202400766

Donggang Li, Chongguo Liu, Wenbo Hong, Penghe Cui, Baigang Jin, Tie Liu, Qiang Wang

{"title":"Flow Behavior and Solute Distribution in the Second Cooling Zone of Continuous Casting of GCr15 Bearing Steel Regulated by Combined Magnetic Fields","authors":"Donggang Li, Chongguo Liu, Wenbo Hong, Penghe Cui, Baigang Jin, Tie Liu, Qiang Wang","doi":"10.1002/srin.202400766","DOIUrl":"https://doi.org/10.1002/srin.202400766","url":null,"abstract":"\u0000GCr15 bearing steel is prone to center segregation and center crack during continuous casting, which is caused by irregular flow behavior and uneven distribution of solute. In this article, two-stage combined magnetic fields of high-frequency and low-current and low-frequency and high-current are used to regulate the flow behavior of 30% solid phase ratio and 60% solid phase ratio in the secondary cooling zone, respectively. The distribution of solute in the final solidified structure can be homogenized by the fine control of macroscopic flow and microscopic inter-dendrite flow under the combined magnetic field. The results show that the rotational flow of molten steel is accelerated with lower solidification rate by the first stage of electromagnetic stirring. Therefore, the solute concentration in the liquid phase increases with the increase of magnetic induction intensity. In the second stage of electromagnetic stirring, the dendrites are broken by micromagnetohydrodynamic effect and the solute segregation decreases.","PeriodicalId":21929,"journal":{"name":"steel research international","volume":"96 9","pages":"103-113"},"PeriodicalIF":2.5,"publicationDate":"2025-01-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145038090","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

Industrial Experiment of the Online Accelerated Cooling for 27SiMn Seamless Steel Pipe 27SiMn无缝钢管在线加速冷却工业试验

IF 2.5 3区材料科学

steel research international Pub Date : 2025-01-14 DOI: 10.1002/srin.202400822

Bin-Bin Wang, Wen Yang, Yan-Chun Liu, Tian-Tian Zhang

引用次数: 0

The Mechanisms of Nano-AlN Content in the Microstructure and Mechanical Properties of Fe–25Mn–9Al–8Ni–1C–0.2Ti Alloy 纳米aln含量对Fe-25Mn-9Al-8Ni-1C-0.2Ti合金组织和力学性能的影响机制

IF 2.5 3区材料科学

steel research international Pub Date : 2025-01-14 DOI: 10.1002/srin.202400830

Yaping Bai, Naqing Lei, Fan Guo, Zibo He, Jianping Li, Chongfeng Sun, Ping Wang

{"title":"The Mechanisms of Nano-AlN Content in the Microstructure and Mechanical Properties of Fe–25Mn–9Al–8Ni–1C–0.2Ti Alloy","authors":"Yaping Bai, Naqing Lei, Fan Guo, Zibo He, Jianping Li, Chongfeng Sun, Ping Wang","doi":"10.1002/srin.202400830","DOIUrl":"https://doi.org/10.1002/srin.202400830","url":null,"abstract":"In order to design a high-strength, tough alloy for structural components, Fe–25Mn–9Al–8Ni–1C–0.2Ti–xAlN (x = 0, 0.25, 0.5, 0.75, and 1 wt%) alloys are prepared by powder metallurgy combined with vacuum arc melting. It can be seen from microstructure that the AlN/Al preform obtained by homogenizing mixing followed by vacuum pressureless sintering is added to the arc melting in the form of raw materials, and the AlN phase can exist stably and be uniformly distributed in the matrix. The main phases of the alloys are composed of austenite, ferrite, and TiC. With the increase of AlN content, the ferrite content is decreased and the grains are refined. The distribution of ferrite grains is changed from network to needle-like and dot-like morphology. Mechanical property test results reveal that the addition of the nano-AlN can maintain the stability of the tensile strength while significantly improving its elongation after fracture. Specifically, when the AlN content is 0.5 wt%, the elongation after fracture reaches the maximum value of ≈55.8%, representing ≈98.5% improvement compared to the matrix alloy. It is attributed to the promotion of slip line formation by nano-AlN, resulting in a higher density of slip lines within the alloy.","PeriodicalId":21929,"journal":{"name":"steel research international","volume":"96 9","pages":"201-213"},"PeriodicalIF":2.5,"publicationDate":"2025-01-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145038151","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

Analysis of Acoustic and Mechanical Performance of Steel Foam Structural Parameters Using Design of Experiments 泡沫钢结构参数声力学性能试验分析

IF 2.5 3区材料科学

steel research international Pub Date : 2025-01-11 DOI: 10.1002/srin.202400881

Kuan-Yu Chen, Yu-Chih Tzeng, Ting-Yu Kuo

{"title":"Analysis of Acoustic and Mechanical Performance of Steel Foam Structural Parameters Using Design of Experiments","authors":"Kuan-Yu Chen, Yu-Chih Tzeng, Ting-Yu Kuo","doi":"10.1002/srin.202400881","DOIUrl":"https://doi.org/10.1002/srin.202400881","url":null,"abstract":"This study investigates the effects of pore size, porosity, and thickness on the acoustic and mechanical properties of 316L steel foam. Specimens with structural parameters—pore sizes (1 and 4 mm), porosities (45% and 60%), and thicknesses (10 and 30 mm)—are fabricated using the pressureless slurry sintering method. Employing Yates's experimental design and analysis of variance (ANOVA), the influences of these factors on the sound absorption coefficient and compressive mechanical properties are systematically examined. Results indicate that 316L steel foam with 60% porosity consistently outperforms 45% porosity specimens in sound absorption across all conditions, underscoring the primary role of porosity in enhancing sound absorption performance. Additionally, increased foam thickness shifts the sound absorption peak to lower frequencies, resulting in improved absorption in low-frequency ranges. Regarding compressive mechanical properties, lower-porosity steel foam demonstrates superior energy absorption capacity. ANOVA results further confirm that porosity is the most influential factor affecting both sound absorption and compressive performance, with no significant interaction effects among pore size, porosity, and thickness. Overall, compared to pore size and thickness, porosity emerges as the critical parameter governing the acoustic and mechanical properties of 316L steel foam, exerting opposing effects on sound absorption and compressive strength.","PeriodicalId":21929,"journal":{"name":"steel research international","volume":"96 9","pages":"142-155"},"PeriodicalIF":2.5,"publicationDate":"2025-01-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145037866","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

Role of V and N Addition on the Microstructure and Mechanical Properties of Q690 MPa Medium and Heavy Plates Produced by Thermomechanically Controlled Processing V和N添加对热控加工q690mpa中厚板组织和力学性能的影响

IF 2.5 3区材料科学

steel research international Pub Date : 2025-01-11 DOI: 10.1002/srin.202400709

Yang Liu, Hongyan Wu, Heng Ma, Xuehui Chen, Xiaoxin Huo, Linxiu Du

{"title":"Role of V and N Addition on the Microstructure and Mechanical Properties of Q690 MPa Medium and Heavy Plates Produced by Thermomechanically Controlled Processing","authors":"Yang Liu, Hongyan Wu, Heng Ma, Xuehui Chen, Xiaoxin Huo, Linxiu Du","doi":"10.1002/srin.202400709","DOIUrl":"https://doi.org/10.1002/srin.202400709","url":null,"abstract":"This research examines the microalloying behaviors of industrial vanadium–nitrogen (V–N) medium and heavy plates rolled by thermomechanically controlled processing. The mechanical properties and microstructures at the quarter and center thicknesses of the medium and heavy steel plates are carefully compared and analyzed. The transmission electron microscopy data show that various locations on the plates see the formation of a considerable number of fine V(C, N) precipitates. The acicular ferrite phase transition is initiated by these V(C, N) precipitates, which inhibit the production of a broad region of pearlite and guarantee the consistency of the mechanical properties of the steel plates. Yield strengths, tensile strengths, percentages of elongation, and yield ratios of 730, 878 MPa, 17.5%, and 0.83 for quarter-thickness and 711, 847 MPa, 18.8%, and 0.84 for midthickness samples are obtained. Additionally, the impact energies at −20 °C are 136 and 100 J for the quarter- and midthickness samples. The effect of V(C, N) precipitation on the uniformity of the microstructure and mechanical properties of the Q690 MPa plate is revealed by adding V to the plate for the first time. Q690 MPa medium and heavy plates with this V–N composition system and new production process are successfully industrialized.","PeriodicalId":21929,"journal":{"name":"steel research international","volume":"96 9","pages":"225-237"},"PeriodicalIF":2.5,"publicationDate":"2025-01-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145037876","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

On the Isothermal Pearlite Transformation Kinetics of High-Carbon Hypoeutectoid Steels Affected by Nb Microalloying Nb微合金化对高碳亚共析钢等温珠光体转变动力学的影响

IF 2.5 3区材料科学

steel research international Pub Date : 2025-01-11 DOI: 10.1002/srin.202400849

Xue Su, Mingxing Zhou, Min Zhu, Houxin Wang, Weifan Yin, Junyu Tian, Guang Xu, Zhenye Chen, Caidong Zhang, Jiarui Guo, Jie Li, Shuai Ren

{"title":"On the Isothermal Pearlite Transformation Kinetics of High-Carbon Hypoeutectoid Steels Affected by Nb Microalloying","authors":"Xue Su, Mingxing Zhou, Min Zhu, Houxin Wang, Weifan Yin, Junyu Tian, Guang Xu, Zhenye Chen, Caidong Zhang, Jiarui Guo, Jie Li, Shuai Ren","doi":"10.1002/srin.202400849","DOIUrl":"https://doi.org/10.1002/srin.202400849","url":null,"abstract":"\u0000The nucleation and growth of pearlite in high-carbon steels with and without Nb are studied based on the in situ observation, and the effect of Nb on isothermal pearlite transformation is revealed in detail. The results show that the pearlite nucleation rates of the studied steels decrease over the isothermal time. The addition of Nb increases the pearlite nucleation rate due to its refinement in prior austenite grains. In addition, the pearlite growth is found to be controlled by the grain boundary diffusion of carbon in this study. Nb reduces the pearlite growth rate due to the solute drag effect of solute Nb and/or the pinning effect of Nb-containing precipitates. Moreover, Nb delays the kinetics of isothermal pearlite transformation at an elevated austenitization temperature (1180 °C), while it accelerates the transformation at a lower austenitization temperature of 900 °C. This phenomenon is related to the competing effect between the promotion of Nb on pearlite nucleation and its hindrance on pearlite growth.","PeriodicalId":21929,"journal":{"name":"steel research international","volume":"96 9","pages":"190-200"},"PeriodicalIF":2.5,"publicationDate":"2025-01-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145037867","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