steel research international最新文献_第4页

Application of High‐ and Low‐Reactivity Cokes in Hydrogen‐Rich Blast Furnaces 高活性和低活性焦炭在富氢高炉中的应用

IF 2.2 3区材料科学

steel research international Pub Date : 2024-09-09 DOI: 10.1002/srin.202400445

Chao Li, Xingye Ma, Jinfeng Bai, Gang Wang, Yang Liu, Yuesi Sui, Xiangyun Zhong, Guozhong Xu, Shiyong Wu

{"title":"Application of High‐ and Low‐Reactivity Cokes in Hydrogen‐Rich Blast Furnaces","authors":"Chao Li, Xingye Ma, Jinfeng Bai, Gang Wang, Yang Liu, Yuesi Sui, Xiangyun Zhong, Guozhong Xu, Shiyong Wu","doi":"10.1002/srin.202400445","DOIUrl":"https://doi.org/10.1002/srin.202400445","url":null,"abstract":"The effects of two cokes with different reactivity on the lump ore's metallurgical properties and coke's solution loss are investigated under the high‐temperature load reduction. The work used an improved test device for softening‐melting and dropping characteristics of iron ores in both CO2 and CO2H2O atmospheres. The deterioration behavior of highly reactive cokes is expounded under hydrogen‐rich conditions. High‐reactivity cokes under hydrogen‐rich conditions are more favorable for enhancing the breathability of charge and the penetration of the coke layer. However, it increased the thickness of the softening zone. High‐reactivity cokes had obvious internal and external reaction gradients. The solution loss reaction mostly occurred on the surface, with selectivity. The longitudinal stacking height, layer number, and order degree in the carbon structure decreases after the reaction. The carbon‐structure difference weakens between the shell and core. The enhancement of coke's reactivity, however, results in the significant loss of coke powders on its surface. Unreduced FeO and refractory Fe2SiO4 are more likely to appear in the droplets, which is not conducive to the reduction of Fe and the generation of slag crust in the furnace. The difficulty in separating lump ores and cokes is aggravated, and more iron‐containing charge remain in the furnace.","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":"142219429","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

In Situ Observation of Microstructure and Precipitate Phase Transformation during the Solidification of Mg‐Containing GH3625 Alloy at Different Cooling Rates 不同冷却速率下含镁 GH3625 合金凝固过程中显微组织和沉淀相变的现场观察

IF 2.2 3区材料科学

steel research international Pub Date : 2024-09-09 DOI: 10.1002/srin.202400301

Yu Zhang, Wei Gong, Pengfei Wang, Xingtong Li

{"title":"In Situ Observation of Microstructure and Precipitate Phase Transformation during the Solidification of Mg‐Containing GH3625 Alloy at Different Cooling Rates","authors":"Yu Zhang, Wei Gong, Pengfei Wang, Xingtong Li","doi":"10.1002/srin.202400301","DOIUrl":"https://doi.org/10.1002/srin.202400301","url":null,"abstract":"In practical applications, intermetallic compounds like Laves phase and metal carbides adversely affect the performance of nickel‐based superalloys. Using a high‐temperature confocal laser scanning microscope, the solidification process of as‐cast GH3625 alloy containing Mg at different cooling rates (−20, −35, and −50 °C min−1) is studied. Fitting curves of the volume fraction of the solid phase with solidification temperature before and after Mg treatment are obtained. Trends of solid phase transformation rates with solidification temperature are determined. Differential scanning calorimetry is employed to analyze and statistically evaluate the melting temperature range and enthalpy of each phase during the melting process. Experimental results demonstrate that Mg treatment significantly accelerates the alloy solidification at the cooling rates of −20 and −35 °C min−1, while reducing the area of residual liquid phase at the same solidification temperature, disrupting the Laves/NbC eutectic relationship, and regularizing NbC morphology, transitioning its distribution from aggregation to dispersion. After Mg treatment, the precipitation of the Laves phase is significantly reduced. As a result, the influence mechanism of Mg treatment on the phase transformation and microstructure of GH3625 is clarified based on homogeneous nucleation theory.","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":"142219438","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

Characterization of CrMnNi Steel Powders Obtained via Gas Atomization 通过气体雾化技术获得的铬锰镍钢粉的表征

IF 2.2 3区材料科学

steel research international Pub Date : 2024-09-09 DOI: 10.1002/srin.202400267

Anastasiia Sherstneva, Caroline Quitzke, Matheus R. Bellé, Marco Wendler, Olena Volkova

{"title":"Characterization of CrMnNi Steel Powders Obtained via Gas Atomization","authors":"Anastasiia Sherstneva, Caroline Quitzke, Matheus R. Bellé, Marco Wendler, Olena Volkova","doi":"10.1002/srin.202400267","DOIUrl":"https://doi.org/10.1002/srin.202400267","url":null,"abstract":"To obtain a successful product during additive manufacturing, the powder as a raw material must have the high quality. The purpose of this work is to investigate CrMnNi steel powders obtained by inert gas atomization with nickel content: 3, 6, and 9 wt% and to identify dependencies between the powder size and morphology, solidification structure, and change in chemical composition and thermophysical properties. Particle size distribution is measured by a laser scattering analyzer: d50 value are 82.02, 69.32, and 75.54 μm for powders with 3, 6, and 9 wt%, respectively. Surface tension (ST) measurements are made by maximum bubble pressure method: for steels with 3, 6, and 9 wt% at temperature 1500 °C, ST is 1.01, 1.07, and 1.15 mN m−1, respectively. It is found that the change in particle size affects the chemical composition, the content of the ferromagnetic phase and secondary dendritic arm‐spacing. Changes in the content of elements such as S, O, N, and Mn are determined, depending on the diameter of the particles. The influence of changes in content of S, O, and N on the thermophysical properties such as ST is investigated.","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":"142219435","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

Steel–Steel Laminates Manufactured via Accumulative Roll Bonding 通过累积轧制粘合制造的钢-钢层压板

IF 2.2 3区材料科学

steel research international Pub Date : 2024-09-09 DOI: 10.1002/srin.202400472

Mikhail Seleznev, Jennifer Mantel, Matthias Schmidtchen, Ulrich Prahl, Horst Biermann, Anja Weidner

{"title":"Steel–Steel Laminates Manufactured via Accumulative Roll Bonding","authors":"Mikhail Seleznev, Jennifer Mantel, Matthias Schmidtchen, Ulrich Prahl, Horst Biermann, Anja Weidner","doi":"10.1002/srin.202400472","DOIUrl":"https://doi.org/10.1002/srin.202400472","url":null,"abstract":"Accumulative roll bonding (ARB) is a repeated cladding process in which two or more sheets of material are joined together by rolling at temperatures below recrystallization. The present review is focused on ARB of high‐alloy steels, which, among other laminated metal composites (LMCs), deliver the highest mechanical properties. After a brief description of high‐strength steels, history, and state of the art of LMCs, the principal roll bonding mechanism is explained. Further, the methodology of ARB of steels and variable parameters (stacking, temperature, etc.) are discussed. Known examples of steel–steel laminates are summarized with respect to their rolling temperature and mechanical properties. Further, the main toughening mechanisms of steel‐based LMCs are listed. The most promising candidates of high‐alloy steel laminates are presented in more detail. The important deformation mechanisms of twinning‐ and transformation‐induced plasticity (TWIP and TRIP) high‐alloy steels are explained. Microstructural changes and layer bonding as well as mechanical properties and damage behavior of two‐ and four‐layered TRIP/TWIP steel laminates are illustrated, including some specific phenomena, such as deformation lenses. Finally, by summarizing the analyzed data on steel laminates, conclusions and outlook are formulated.","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":"142219433","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 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