steel research international最新文献_第4页

Deviation Prediction for Online Calculation Model of Hot-Rolled Strip Crown 热轧带钢凸度在线计算模型的偏差预测

IF 2.5 3区材料科学

steel research international Pub Date : 2025-03-16 DOI: 10.1002/srin.202400942

Houge Qu, Chihuan Yao, Chao Liu, Anrui He, Hualong Li, Changke Chen

{"title":"Deviation Prediction for Online Calculation Model of Hot-Rolled Strip Crown","authors":"Houge Qu, Chihuan Yao, Chao Liu, Anrui He, Hualong Li, Changke Chen","doi":"10.1002/srin.202400942","DOIUrl":"https://doi.org/10.1002/srin.202400942","url":null,"abstract":"\u0000Precise online crown calculations are essential for accurate control of hot-rolled strip shape, whose accuracy is limited by the assumptions made in mechanism model development and the variability of rolling production conditions. The current model self-learning strategy combines exponential smoothing-based short-term compensation and proportional archiving-based long-term compensation. However, increasingly stringent requirements for the shape quality of hot-rolled strip reveal deficiencies in the strategy, particularly in learning coefficient determination and cooperative performance. To address this, this article proposes a machine learning-based model to predict deviations between calculated and measured crown values, with the objective of replacing the current self-learning strategy to provide compensation for the model. Industrial data from hot-rolling production line are collected to construct a modeling dataset, where key process parameters impacting online crown calculations are selected as input features. Four machine learning methods—multilayer perceptron, regression tree, support vector regression, and locally weighted linear regression (LWLR)—are utilized to develop a predictive model. Results show that the LWLR model achieves the best performance, with a root mean square error of 5.77 and a coefficient of determination of 0.931, demonstrating its potential of model compensation and accuracy enhancement.","PeriodicalId":21929,"journal":{"name":"steel research international","volume":"96 10","pages":"334-347"},"PeriodicalIF":2.5,"publicationDate":"2025-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145196834","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

Hot Deformation Behavior of DT4 Pure Iron in the Austenite Single-Phase Region: Experiment and Finite Element Simulation DT4纯铁在奥氏体单相区的热变形行为：实验与有限元模拟

IF 2.5 3区材料科学

steel research international Pub Date : 2025-03-16 DOI: 10.1002/srin.202401056

Liangji Yu, Kaitan Chen, Shuo Gong, Fuming Wang

{"title":"Hot Deformation Behavior of DT4 Pure Iron in the Austenite Single-Phase Region: Experiment and Finite Element Simulation","authors":"Liangji Yu, Kaitan Chen, Shuo Gong, Fuming Wang","doi":"10.1002/srin.202401056","DOIUrl":"https://doi.org/10.1002/srin.202401056","url":null,"abstract":"The control of grain size and uniformity during the rolling process of DT4 electromagnetic pure iron is critical for its coercive force. Dynamic recrystallization during hot processing is closely related to grain size and uniformity control; therefore, the study of hot deformation and dynamic recrystallization process of DT4 in the γ-phase region is essential. A 60% hot deformation of DT4 is conducted at temperatures of 950, 1000, and 1050 °C, respectively, with strain rates ranging from 0.01 to 10 s−1. The results indicate that in the γ-phase region, after hot compression, the grain size and recrystallization fraction of DT4 decrease as the strain rate increases and the temperature decreases. A constitutive model and dynamic recrystallization model for DT4 are established, which can be used to predict the flow stress, recrystallization fraction, grain size, and critical strain of DT4, based on deformation temperature, strain rate, and strain. The dynamic recrystallization model is integrated into the Deform-3D to simulate the critical strain during the hot deformation process of DT4. According to the correlation coefficient (R) and root mean square error results, the simulated data are consistent with the experimental data.","PeriodicalId":21929,"journal":{"name":"steel research international","volume":"96 10","pages":"406-417"},"PeriodicalIF":2.5,"publicationDate":"2025-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145196838","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 Initial Texture and Heat Treatment Process on the Texture Evolution and Magnetic Properties of Low Silicon Nonoriented Electrical Steel 初始织构及热处理工艺对低硅无取向电工钢织构演变及磁性能的影响

IF 2.5 3区材料科学

steel research international Pub Date : 2025-03-16 DOI: 10.1002/srin.202401065

Shihao Wang, Zhichao Li, Yutang Wang, Pei Zou, Yuchen Jin

{"title":"Effects of Initial Texture and Heat Treatment Process on the Texture Evolution and Magnetic Properties of Low Silicon Nonoriented Electrical Steel","authors":"Shihao Wang, Zhichao Li, Yutang Wang, Pei Zou, Yuchen Jin","doi":"10.1002/srin.202401065","DOIUrl":"https://doi.org/10.1002/srin.202401065","url":null,"abstract":"This research focuses on 0.74 wt% silicon Nonoriented silicon steel, obtaining different initial texture samples from hot-rolled sheets at sampling angles ranging from 0° to 75°. Furthermore, the evolution of microstructure and texture is observed throughout the entire process by combining five different annealing temperatures, including 780–980 °C. The results show that as the sampling angle increases, the components of the initial texture along the {110}<112>-{110}<001> line tend to decrease, in particular, the texture of Goss decreased from 1.4% to 0.3%, while those along the {100}<011>-{112}<111> line significantly increase once the angle exceeds 30°. Ultimately, among the samples from the same batch tested at θ = 30°, the performance is optimal, with iron loss P15/50 reaching 4.57 W kg−1, P10/400 reaching 50.10 W kg−1, and high-frequency magnetic flux B50 at 1.76 T. Based on this, the optimal annealing process parameters are determined to be 930 °C for 10 min. Current reserch provides new insights and processing routes for texture control and magnetic performance optimization of Nonoriented silicon steel.","PeriodicalId":21929,"journal":{"name":"steel research international","volume":"96 10","pages":"370-381"},"PeriodicalIF":2.5,"publicationDate":"2025-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145196836","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 Effects of Mg–Si Gangue Compositions within Magnetite on Iron Oxide Crystallization during Pellet Roasting 磁铁矿中镁硅脉石组成对球团焙烧过程中氧化铁结晶影响的研究

IF 2.5 3区材料科学

steel research international Pub Date : 2025-03-16 DOI: 10.1002/srin.202401069

Haoyu Cai, Jianliang Zhang, Zhengjian Liu, Yaozu Wang, Zhen Li, Huiqing Jiang

{"title":"Study on the Effects of Mg–Si Gangue Compositions within Magnetite on Iron Oxide Crystallization during Pellet Roasting","authors":"Haoyu Cai, Jianliang Zhang, Zhengjian Liu, Yaozu Wang, Zhen Li, Huiqing Jiang","doi":"10.1002/srin.202401069","DOIUrl":"https://doi.org/10.1002/srin.202401069","url":null,"abstract":"This article investigates the consolidation performance of high-magnesium content pellets under varying roast temperatures and Mg–Si elemental contents. The study reveals that as the proportion of high-Mg–Si ore increases, the strength of preheated pellets decreases from 546 to 470 N at a constant preheating temperature. The rise in magnesium and silicon phases diminishes the oxidation degree of the pellets, requiring a higher sintering temperature to achieve optimal consolidation. The research indicates that at 1200 °C pellets exhibit the highest average compressive strength with the best level of oxidation and secondary crystallization. However, over-roasting leads to a reduction in pellet strength due to excessive liquid phase interference at 1250 °C. When the high-Mg–Si raw material proportion is 50 wt%, the pellets with the highest compressive strength of 2843 N are yielded at the sintering temperature of 1200 °C and preheating temperature of 850 °C, which is attributed to the high oxidation, secondary crystallization of magnetite, and the MgO content facilitating the formation of CaO·Fe2O3 liquid phase, resulting in the best pellet consolidation strength.","PeriodicalId":21929,"journal":{"name":"steel research international","volume":"96 10","pages":"395-405"},"PeriodicalIF":2.5,"publicationDate":"2025-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145196837","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

Cooling Performance Experiment and Simulation Investigation of Flow Boiling Heat Transfer for Wire Rods during Quenching in Molten Salt Mixtures 熔盐混合物中线材流动沸腾传热冷却性能实验与模拟研究

IF 2.5 3区材料科学

steel research international Pub Date : 2025-03-16 DOI: 10.1002/srin.202500019

Jun Li, Enjie Lin, Bo Wang, Jieyu Zhang, Chuanmin Li

{"title":"Cooling Performance Experiment and Simulation Investigation of Flow Boiling Heat Transfer for Wire Rods during Quenching in Molten Salt Mixtures","authors":"Jun Li, Enjie Lin, Bo Wang, Jieyu Zhang, Chuanmin Li","doi":"10.1002/srin.202500019","DOIUrl":"https://doi.org/10.1002/srin.202500019","url":null,"abstract":"When the wire is cooled in the salt bath, since the wire temperature far exceeds the boiling point of the molten salt, accurately modeling the heat transfer process in molten salt quenching is difficult. Therefore, for investigating the cooling mechanism and improving the mechanical properties of wire rods, quenching experiments are conducted on specimens (92Si) at various molten salt (a 1:1 mixture of NaNO3-KNO3) temperatures using a salt bath furnace. Cooling curves are measured, and thus the real boiling heat transfer coefficient (HTC) at the metal–salt interface is calculated using a validated in-house-programmed inverse heat transfer algorithm based on experimental data. By integrating the experimentally determined boiling HTC with the convective HTC obtained from a salt bath simulation, a mathematical model of superposition flow boiling heat transfer is developed to predict the heat transfer characteristics, wire cooling behavior, and phase-transformation processes within the salt bath, which is also an innovation point of this article. The model effectively captures the actual heat transfer behavior during the early stages of salt bath quenching. The model is further used to evaluate the optimal molten salt temperature for quenching in a modified salt bath system with a flow rate of 60 m3 h−1.","PeriodicalId":21929,"journal":{"name":"steel research international","volume":"96 10","pages":"418-433"},"PeriodicalIF":2.5,"publicationDate":"2025-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145196840","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

Effect of Rolling Reduction on Inclusions in a Sulfur-Containing Ti Microalloyed Gear Steel 轧制压下对含硫Ti微合金齿轮钢夹杂物的影响

IF 2.5 3区材料科学

steel research international Pub Date : 2025-03-16 DOI: 10.1002/srin.202400994

Yao-qiang Li, Xiao-yong Gao, Wei-wang Ren, Tan-hua Zhu, Li-feng Zhang

{"title":"Effect of Rolling Reduction on Inclusions in a Sulfur-Containing Ti Microalloyed Gear Steel","authors":"Yao-qiang Li, Xiao-yong Gao, Wei-wang Ren, Tan-hua Zhu, Li-feng Zhang","doi":"10.1002/srin.202400994","DOIUrl":"https://doi.org/10.1002/srin.202400994","url":null,"abstract":"\u0000The effect of rolling reduction on inclusions in a sulfur-containing 20CrMnTi gear steel is investigated. The characteristics, including composition, morphology, size, and amount of inclusions in continuous casting billets and hot-rolled rods, are investigated using an automated scanning electron microscope with an energy-dispersive spectrometer. Inclusions in the continuous casting billet are pure MnS, pure TiN, and complex TiN–MnS. Pure MnS inclusions are irregular and located along the grain boundaries, and pure TiN inclusions are distributed evenly in the billet. The shape of complex TiN–MnS inclusions is similar to pure MnS ones. After hot rolling, pure MnS inclusions are elongated, pure TiN is unchanged, and complex TiN–MnS undergo medium elongation. The maximum and average length of complex TiN–MnS inclusions are smaller than that of pure MnS. Pure MnS inclusions have largest deformation index during hot rolling, while pure TiN inclusions have the smallest deformation index. With increasing rolling reduction, the microstructure is refined. From the perspective of hot rolling performance, complex TiN–MnS inclusions are better for the industrial production of sulfur-containing 20CrMnTi gear steel. The work provides a new way to control the deformation of inclusions and microstructure of sulfur-containing 20CrMnTi gear steels, by adjusting the rolling reduction.","PeriodicalId":21929,"journal":{"name":"steel research international","volume":"96 10","pages":"444-453"},"PeriodicalIF":2.5,"publicationDate":"2025-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145196839","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

Precipitate-Induced Fracture Mechanisms of API X60 Linepipe Steel Suitable for Sour Conditions 适用于酸性环境的API X60管线钢的析出物诱发断裂机理

IF 2.5 3区材料科学

steel research international Pub Date : 2025-03-16 DOI: 10.1002/srin.202500043

Subhnit Kumar Roy, Vivek Kumar Yadav, Rajesh Goyal, Vinoo DS

{"title":"Precipitate-Induced Fracture Mechanisms of API X60 Linepipe Steel Suitable for Sour Conditions","authors":"Subhnit Kumar Roy, Vivek Kumar Yadav, Rajesh Goyal, Vinoo DS","doi":"10.1002/srin.202500043","DOIUrl":"https://doi.org/10.1002/srin.202500043","url":null,"abstract":"\u0000Sour service environments, characterized by high levels of hydrogen sulfide (H2S), pose significant risks of material failure due to cracking. These conditions are commonly encountered in oil and gas production wells, transmission pipelines, and refinery equipment. To ensure steel suitability for these challenging conditions, it must meet the API 5 L Annex H requirements. One critical assessment is the hydrogen-induced cracking (HIC) test, which evaluates the steel's resistance to crack formation in sour environments. Herein, HIC in pipeline steel is thoroughly examined, with an emphasis on mitigating failure through tailored microstructures and alloying strategies. HIC tests are conducted on high-strength low-alloy steels with varying alloy compositions. These tests adhere to the National Association of Corrosion Engineers TM0284-2016 standard, involving exposure to a sour environment where hydrogen sulfide is continuously bubbled through the test solution for 96 h. The findings reveal that precipitates play a crucial role in increasing the steel's susceptibility to HIC, leading to intergranular fractures. Specifically, large precipitates such as NbTi carbonitride are identified as key contributors to crack initiation. This detailed analysis highlights the importance of understanding precipitate behavior to enhance the performance of pipeline steels in sour service environments, guiding the development of more resilient materials.","PeriodicalId":21929,"journal":{"name":"steel research international","volume":"96 10","pages":"478-488"},"PeriodicalIF":2.5,"publicationDate":"2025-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145196823","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 Weatherability of Cu-Containing Weathering Steel in Simulated Tropical Marine Atmospheres: A Sulfuric Acid Patination Approach Driven by Cu Dissolution and Redeposition 提高含Cu耐候钢在模拟热带海洋大气中的耐候性：由Cu溶解和再沉积驱动的硫酸镀化方法

IF 2.5 3区材料科学

steel research international Pub Date : 2025-03-13 DOI: 10.1002/srin.202500016

Yipu Sun, Wei Liu, Bo Zhang, Longjun Chen, Hai Li, Fulong Wang, Bowen Hou

引用次数: 0

Study on Transverse Surface Cracks in the Continuous Casting Slab of a Microalloyed Steel 某微合金钢连铸板坯表面横向裂纹的研究

IF 2.5 3区材料科学

steel research international Pub Date : 2025-03-13 DOI: 10.1002/srin.202400988

Yadong Wang, Lifeng Zhang

{"title":"Study on Transverse Surface Cracks in the Continuous Casting Slab of a Microalloyed Steel","authors":"Yadong Wang, Lifeng Zhang","doi":"10.1002/srin.202400988","DOIUrl":"https://doi.org/10.1002/srin.202400988","url":null,"abstract":"Transverse surface cracks are one of the main surface defects which limit the quality and efficiency of microalloyed steel production. Herein, controlling strategy of transverse surface cracks is investigated. Transverse surface cracks are often formed in the valley of oscillation marks on the loose side surface in the continuous casting slab. The cracks are investigated using an optical microscope and scanning electron microscope. Then the hot ductility is measured, and the thermodynamics of precipitates are calculated. Finally, the temperature history of the slab is calculated, and the secondary cooling water flow rate is optimized. Mold powder and wear elements of the mold are not detected. The ferrite is almost symmetrically distributed on both sides of the crack. Transverse surface cracks are generated in the secondary cooling zones. In the straightening zones, the temperature on the loose side of the continuous casting slab near the quarter of the edge falls in the third brittle temperature range which is the reason for the generation of transverse surface cracks. The content of N in the steel is controlled below 0.003%, and the water flow in the secondary cooling zones from zone 5 to zone 8 is increased by 60%. Transverse surface cracks disappear.","PeriodicalId":21929,"journal":{"name":"steel research international","volume":"96 10","pages":"434-443"},"PeriodicalIF":2.5,"publicationDate":"2025-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145196752","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

Formation Mechanism and Prevention of White Spots in Superalloys during Vacuum Arc Remelting: A Review 高温合金真空电弧重熔过程中白斑的形成机理及预防研究进展

IF 2.5 3区材料科学

steel research international Pub Date : 2025-03-11 DOI: 10.1002/srin.202500064

Jing-Bao Gao, Hong-Chun Zhu, Hua-Bing Li, Zhuo-Wen Ni, Zhi-Yu He, Zhou-Hua Jiang, Shu-Cai Zhang, Hao Feng

{"title":"Formation Mechanism and Prevention of White Spots in Superalloys during Vacuum Arc Remelting: A Review","authors":"Jing-Bao Gao, Hong-Chun Zhu, Hua-Bing Li, Zhuo-Wen Ni, Zhi-Yu He, Zhou-Hua Jiang, Shu-Cai Zhang, Hao Feng","doi":"10.1002/srin.202500064","DOIUrl":"https://doi.org/10.1002/srin.202500064","url":null,"abstract":"White spots are a common solidification defect in vacuum arc remelting superalloy ingot, which can cause material fracture and greatly limit the utilization in high-end applications. Poor electrode quality and unstable remelting parameters are the main reasons for forming white spots. In this article, the characteristics and formation mechanism of all kinds of white spots are summarized. The influence mechanism of electrode crack, shrinkage cavity, gas and inclusion content, fill ratio, power, arc characteristics, cooling gas, and other factors on the white spots is analyzed in detail. Through rigorous examination of formation mechanisms and influencing factors, this study establishes that white spot elimination can be effectively achieved through three primary approaches: 1) optimization of the vacuum induction melting process to produce defect-free electrodes, 2) implementation of triple melting processes instead of conventional double melting, and 3) precise control and stabilization of remelting parameters.","PeriodicalId":21929,"journal":{"name":"steel research international","volume":"96 10","pages":"33-50"},"PeriodicalIF":2.5,"publicationDate":"2025-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145196750","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