steel research international最新文献_第4页

Study on Evolution Behavior of Carbides in Industrial‐Grade American Iron and Steel Institute M35 High‐Speed Steel Produced by Electroslag Remelting 电渣重熔法生产的工业级美国钢铁协会 M35 高速钢中碳化物的演变行为研究

IF 2.2 3区材料科学

steel research international Pub Date : 2024-09-09 DOI: 10.1002/srin.202400292

Wei Liang, Jing Li, Jiahao Li, Jian Chai

{"title":"Study on Evolution Behavior of Carbides in Industrial‐Grade American Iron and Steel Institute M35 High‐Speed Steel Produced by Electroslag Remelting","authors":"Wei Liang, Jing Li, Jiahao Li, Jian Chai","doi":"10.1002/srin.202400292","DOIUrl":"https://doi.org/10.1002/srin.202400292","url":null,"abstract":"In order to optimize the heating schedule before forging and improve the breaking and deformation effects of carbides in high‐speed steel, it is of great significance to study the transformation of M2C carbides at high temperatures. The evolution of carbides in the industrial‐grade American Iron and Steel Institute M35 steel produced by electroslag remelting (ESR) is analyzed and observed using thermodynamic calculations and experimental methods. The results indicate that the carbides in the ESR ingot are mainly MC and M2C, and the microstructures of M2C carbides with the highest volume fraction are lamellar and brain like. As the heating temperature increases and holding time prolongs, the lamellar M2C carbides gradually transform into MC and M6C carbides, accompanied by protrusion, dissolution, separation, and spheroidization of the microstructure, until significant coarsening occurs at 1180 °C for 90 min. The newly transformed carbides are embedded and stacked with each other, occupying the original position of M2C carbides. Based on the theories of Gibbs free energy and atomic diffusion, the evolution mechanism of M2C carbides is discussed. Ultimately, the appropriate heating schedule is proposed, and it is validated by combining the characteristics of carbides after forging.","PeriodicalId":21929,"journal":{"name":"steel research international","volume":null,"pages":null},"PeriodicalIF":2.2,"publicationDate":"2024-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142219436","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 of the Effect of Initial Plate Temperature in Jet Impingement Cooling Process 研究喷射撞击冷却过程中初始板温度的影响

IF 2.2 3区材料科学

steel research international Pub Date : 2024-09-09 DOI: 10.1002/srin.202400359

Mohamed S. Gadala, Abdulrahman Gomaa, Fahad Aslam

{"title":"Study of the Effect of Initial Plate Temperature in Jet Impingement Cooling Process","authors":"Mohamed S. Gadala, Abdulrahman Gomaa, Fahad Aslam","doi":"10.1002/srin.202400359","DOIUrl":"https://doi.org/10.1002/srin.202400359","url":null,"abstract":"The microstructure characteristics and the properties of rolled steels are significantly affected by the heat transfer and boiling phenomena occurring during the jet impingement cooling on run‐out tables (ROT). In this study, experiments are conducted using a full industrial‐scale ROT facility with rectangular plates made of low‐carbon stainless steel (type 316L). The plate is heated up to a temperature ranging from to , then rapidly impinged using a single circular water jet, and the temperature drop is captured using an infrared thermal camera (FLIR A615 25°–50 Hz type). The dissipated heat flux, estimated experimentally using a 2D inverse heat conduction analysis, ranges from 6.1 to 3.4 MW m−2 across different zones along the plate surface. The impact of different initial plate temperature on the boiling behavior is studied by developing a 2D‐computational fluid dynamics (CFD) model, and the results are closely aligned with the experimental findings. The results reveal that when estimating the heat flux from CFD simulations, the best accuracy is obtained when considering fluid temperature at a point close to the plate surface (about 1 μm above the surface). Furthermore, the maximum extracted heat flux (MHF) is significantly influenced by the initial temperature of the plate. Increasing the initial plate temperature from 500 to 900 °C led to an increase of 82% in the MHF in stagnation zone, and 137% increase in the parallel‐flow region. The CFD model presented in this study and the full calculation of the boiling curves numerically will pave the road for investigating various practical parameters in jet impingement cooling.","PeriodicalId":21929,"journal":{"name":"steel research international","volume":null,"pages":null},"PeriodicalIF":2.2,"publicationDate":"2024-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142219428","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 Trace Element B on the Microstructure and Mechanical Properties of 8Cr4Mo4V Bearing Steel 微量元素 B 对 8Cr4Mo4V 轴承钢微观结构和机械性能的影响

IF 2.2 3区材料科学

steel research international Pub Date : 2024-09-09 DOI: 10.1002/srin.202400501

Xingfu Yu, Ze Wu, Tianci Hao, Yong Su, Ying Jia, Yinghua Wei

引用次数: 0

Effect of Cerium Addition on Microstructure and Mechanical Properties of the Ductile Iron 添加铈对球墨铸铁微观结构和机械性能的影响

IF 2.2 3区材料科学

steel research international Pub Date : 2024-09-09 DOI: 10.1002/srin.202400458

Zhongyan Xie, Yubao Liu, Ying Ren, Lifeng Zhang

引用次数: 0

Effect of Nb and La on Precipitates, Yield Strength and Toughness of FeCrAl Alloy Nb 和 La 对 FeCrAl 合金析出物、屈服强度和韧性的影响

IF 2.2 3区材料科学

steel research international Pub Date : 2024-09-04 DOI: 10.1002/srin.202400553

Huai Zhang, Chengbin Shi, Yiwa Luo

{"title":"Effect of Nb and La on Precipitates, Yield Strength and Toughness of FeCrAl Alloy","authors":"Huai Zhang, Chengbin Shi, Yiwa Luo","doi":"10.1002/srin.202400553","DOIUrl":"https://doi.org/10.1002/srin.202400553","url":null,"abstract":"FeCrAl alloy is considered a promising material for light water reactor fuel cladding due to its excellent elevated temperature oxidation resistance and radiation performance. The effects of 0.21 wt% Nb or 0.23 wt% La additions on the microstructure, second phase, yield strength and toughness of FeCrAl alloy are studied. The morphology and number fraction of inclusions in FeCrAl alloys are analyzed. The addition of 0.21 wt% Nb in FeCrAl alloy promotes the precipitation of nanoscale (Fe,Cr)2(Nb,Ti) Laves phase and refining grain size. The addition of La‐modified Al2O3 and MgO·Al2O3 inclusions to La2O3 and LaS, and La2O3 is favorable to promote the heterogeneous nucleation of α‐Fe. The fracture mode of the FeCrAl alloy with 0.21 wt% Nb or 0.23 wt% La transitions from dimple fracture and quasi‐cleavage fracture to dimple fracture, in comparison with Nb‐free or La‐free FeCrAl alloy. Nb and La additions improve the yield strength and toughness of FeCrAl alloy. The addition of Nb exhibits a more pronounced strengthening effect on FeCrAl alloy compared with the addition of La.","PeriodicalId":21929,"journal":{"name":"steel research international","volume":null,"pages":null},"PeriodicalIF":2.2,"publicationDate":"2024-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142219437","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

Inhibition Behavior for the Oxidation of Si‐Doped Fe3O4: A Combined Ab Initio Molecular Dynamics and Experimental Study 掺杂硅的 Fe3O4 氧化抑制行为：Ab Initio 分子动力学与实验相结合的研究

IF 2.2 3区材料科学

steel research international Pub Date : 2024-09-04 DOI: 10.1002/srin.202300768

Yaozu Wang, Xurui Liu, Ren Wang, Huiqing Jiang, Lisi Lu, Kaifa Zhang, Kexin Jiao, Fangyu Guo

{"title":"Inhibition Behavior for the Oxidation of Si‐Doped Fe3O4: A Combined Ab Initio Molecular Dynamics and Experimental Study","authors":"Yaozu Wang, Xurui Liu, Ren Wang, Huiqing Jiang, Lisi Lu, Kaifa Zhang, Kexin Jiao, Fangyu Guo","doi":"10.1002/srin.202300768","DOIUrl":"https://doi.org/10.1002/srin.202300768","url":null,"abstract":"The magnetite oxidation process involves magnetite surface adsorption and O2 dissociation, and the presence of impurity elements such as silicon inevitably affects the magnetite surface adsorption process. To explore and analyze the surface adsorption and oxidation behaviors of silicon‐doped Fe3O4, thermogravimetric experiments and density functional theory methods are used to investigate the physicochemical properties of this material during magnetite oxidation. The results of experiments show that with the increase of SiO2 content, the peaks of the oxidation reaction gradually migrate to the high‐temperature region, the initial oxidation temperature of the mineral increases, and the average oxidation rate decreases. The results of calculations show that when the surface system is doped with Si atoms, the relaxation time of the adsorption and dissociation of oxygen on the surface is prolonged, and the presence of Si isomerization tends to stabilize the crystal lattice structure, reduce the migration of ions, and decrease the mineral's oxidizing properties.","PeriodicalId":21929,"journal":{"name":"steel research international","volume":null,"pages":null},"PeriodicalIF":2.2,"publicationDate":"2024-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142219440","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

Particle Size Segregation during Charging and Discharging Processes in Bell‐Less Blast Furnace with Serial‐Type Hoppers 带串联式料斗的无料钟高炉装料和卸料过程中的粒度偏析

IF 2.2 3区材料科学

steel research international Pub Date : 2024-09-04 DOI: 10.1002/srin.202400306

Wang Zeng, Desheng Zou, Guangliang Wang, Wen Zheng, Yichi Zhang, Tianxiang Zhang, Heng Zhou, Shengli Wu, Mingyin Kou

{"title":"Particle Size Segregation during Charging and Discharging Processes in Bell‐Less Blast Furnace with Serial‐Type Hoppers","authors":"Wang Zeng, Desheng Zou, Guangliang Wang, Wen Zheng, Yichi Zhang, Tianxiang Zhang, Heng Zhou, Shengli Wu, Mingyin Kou","doi":"10.1002/srin.202400306","DOIUrl":"https://doi.org/10.1002/srin.202400306","url":null,"abstract":"Burden distribution in a blast furnace not only determines the distribution of gas flow but also affects the thermal efficiency and fuel consumption of the blast furnace. Therefore, it is of great significance to study the burden segregation behaviors during the charging and discharging processes in blast furnaces. Herein, a 3D model of a 1:1 bell‐less top blast furnace with serial‐type hoppers is established based on the discrete element method. The model is used to simulate the entire process of the burden falling from the belt until it leaves the weighing hopper. The results show that the particle size segregation in the upper hopper is more severe than that in the weighing hopper, which also seriously affects the size segregation in the weighing hopper. Changing the charging sequence will reduce the segregation degree in two hoppers, but it cannot change the trend of particle size segregation in the final stage of the discharging process. The small particles are found to gather at the end of the discharging process, so the chute angle should be increased in the last few revolutions of the charging matrix to decrease the accumulation of small particles.","PeriodicalId":21929,"journal":{"name":"steel research international","volume":null,"pages":null},"PeriodicalIF":2.2,"publicationDate":"2024-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142219439","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

Impact of Chemical Composition Changes during Ultrasound Atomization and Laser Powder Bed Fusion of Low Alloy Steel 低合金钢超声雾化和激光粉末床熔融过程中化学成分变化的影响

IF 2.2 3区材料科学

steel research international Pub Date : 2024-08-31 DOI: 10.1002/srin.202400257

Piotr Ledwig, Hubert Pasiowiec, Bartłomiej Truczka, Jan Falkus

{"title":"Impact of Chemical Composition Changes during Ultrasound Atomization and Laser Powder Bed Fusion of Low Alloy Steel","authors":"Piotr Ledwig, Hubert Pasiowiec, Bartłomiej Truczka, Jan Falkus","doi":"10.1002/srin.202400257","DOIUrl":"https://doi.org/10.1002/srin.202400257","url":null,"abstract":"This study investigates the effect of changing the chemical composition during ultrasonic atomization (UA) and laser powder bed fusion (LPBF) of low‐alloy steel. UA is used to produce a spherical powder with d50 equal to 49 μm. During UA, the chemical composition of the material changes, which is associated with selective evaporation of Mn from 1.42% to 0.35% and B from 0.0012% to <0.0001%. Thermodynamic calculations confirm that during atomization, mostly Mn and Fe evaporate. To achieve a high density of 3D printed parts, in situ remelting in LPBF is applied. A microstructure consisting of fine grains of tempered martensite and bainite in crystallized meltpools is observed. The selected high‐quality LPBF samples are austenitized in the temperature range of 900–1200 °C for 20 min and quenched in oil. The samples are characterized by light and scanning electron microscopy, as well as Vickers hardness. Changes in chemical composition result in a decrease in the hardenability of the material, and quenching only at 1200 °C produces a martensitic microstructure. LPBF samples show a hardness higher than that of the postheat‐treated sample, but still significantly lower than that of the as‐delivery condition, which is related to the change in chemical composition.","PeriodicalId":21929,"journal":{"name":"steel research international","volume":null,"pages":null},"PeriodicalIF":2.2,"publicationDate":"2024-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142227403","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

Numerical Simulation of Molten Steel Flow Field in a Ladle Induced by Low‐Frequency High‐Power Ultrasound 低频大功率超声波诱导钢包中钢水流场的数值模拟

IF 2.2 3区材料科学

steel research international Pub Date : 2024-08-31 DOI: 10.1002/srin.202400312

Qing Guo, Min Chen, Lei Xu, Weihao Cheng

{"title":"Numerical Simulation of Molten Steel Flow Field in a Ladle Induced by Low‐Frequency High‐Power Ultrasound","authors":"Qing Guo, Min Chen, Lei Xu, Weihao Cheng","doi":"10.1002/srin.202400312","DOIUrl":"https://doi.org/10.1002/srin.202400312","url":null,"abstract":"To encourage the use of ultrasound in the calcium treatment of molten steel, this study utilizes the volume‐of‐fluid (VOF) method combined with a mixture model to analyze the distribution of the flow field in molten steel when ultrasound is applied. The effects of low‐frequency, high‐power ultrasound on the pressure field, volume fraction of cavitation bubbles, velocity distribution, and turbulence intensity are investigated. The results reveal a pattern of alternating positive and negative pressure in the pressure field during each cycle, with the lowest pressure measuring −9.63 × 104 Pa at 96 kW. The cavitation bubbles are concentrated in the intense cavitation area beneath the ultrasonic probe, exhibiting a maximum volume fraction of 2.50 × 10−2. The axial velocity peaks at the central axis, whereas the radial velocity is negligible. The maximum axial velocity increases from 0.36 m/s at 48 kW to 0.82 m/s at 120 kW. This velocity trend mirrors the turbulence intensity distribution, with the highest turbulence intensity of 276 at 96 kW. These findings provide a theoretical basis for low‐frequency, high‐power ultrasound to improve the calcium treatment of molten steel. The outcomes of the numerical simulation closely align with the experimental results, substantiating their reliability through a comparison with published studies.","PeriodicalId":21929,"journal":{"name":"steel research international","volume":null,"pages":null},"PeriodicalIF":2.2,"publicationDate":"2024-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142219497","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

Contents: steel research int. 9/2024 内容：国际钢铁研究协会9/2024

IF 1.9 3区材料科学

steel research international Pub Date : 2024-08-31 DOI: 10.1002/srin.202470093

引用次数: 0