steel research international最新文献

{"title":"Prediction and Optimization of Water Flux Distribution for Flat Nozzles in Slab Continuous Casting","authors":"Huisheng Wang,&nbsp;Jiangshan Zhang,&nbsp;Biao Tao,&nbsp;Weili Huang,&nbsp;Jun Wu,&nbsp;Min Guan,&nbsp;Qing Liu","doi":"10.1002/srin.202570061","DOIUrl":"https://doi.org/10.1002/srin.202570061","url":null,"abstract":"<p>The cover image is based on the article Prediction and Optimization of Water Flux Distribution for Flat Nozzles in Slab Continuous Casting by Huisheng Wang et al., https://doi.org/10.1002/srin.202400738.\u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture><p></p>\u0000 </div>\u0000 </figure></p>","PeriodicalId":21929,"journal":{"name":"steel research international","volume":"96 6","pages":""},"PeriodicalIF":1.9,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/srin.202570061","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144190846","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}

{"title":"Contents: steel research int. 6/2025","authors":"","doi":"10.1002/srin.202570063","DOIUrl":"https://doi.org/10.1002/srin.202570063","url":null,"abstract":"","PeriodicalId":21929,"journal":{"name":"steel research international","volume":"96 6","pages":""},"PeriodicalIF":1.9,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/srin.202570063","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144190848","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}

{"title":"","authors":"","doi":"10.1002/srin.202500096","DOIUrl":"https://doi.org/10.1002/srin.202500096","url":null,"abstract":"&lt;p&gt;&lt;/p&gt;&lt;p&gt;The current scientific and technical staff of the Institute of Iron and Steel Technology in the lecture hall of the Ledebur Building.&lt;/p&gt;&lt;p&gt;In December 1874, Adolf Ledebur, the smelter master of the Gröditz Ironworks, was appointed professor of ferrous metallurgy and head of the metallurgical laboratory at TU Bergakademie Freiberg. This appointment is regarded as the founding of what is now the Institute of Iron and Steel Technology. Among the 260 years of TU Freiberg's history, approximately 150 years have been dedicated to pioneering research and teaching in ferrous metallurgy, establishing the institute as a center of innovation in this field.&lt;/p&gt;&lt;p&gt;Today, the Institute of Iron and Steel Technology is one of the few institutions in Europe, along with &lt;i&gt;RWTH Aachen&lt;/i&gt; (Germany), &lt;i&gt;MU Leoben&lt;/i&gt; (Austria), &lt;i&gt;KTH&lt;/i&gt; (Sweden), the &lt;i&gt;University of Oulu&lt;/i&gt; (Finland), &lt;i&gt;TU Delft&lt;/i&gt; (Netherlands), and &lt;i&gt;KU Leuven&lt;/i&gt; (Belgium), which still provide extensive education and research in iron and steel technology. It has become a trusted partner of German and European industry, contributing significantly to advances in climate-neutral steel production, greenhouse gas reduction, and the circular economy. The institute offers specializations in ferrous metallurgy through its German diploma and master's programs in &lt;i&gt;Materials Science and Technology&lt;/i&gt;. Since 2018, it has expanded its offerings to include English-language master's programs in &lt;i&gt;Metallic Materials Technology&lt;/i&gt; and &lt;i&gt;Technology and Application of Inorganic Engineering Materials&lt;/i&gt;, enhancing its international reach.&lt;/p&gt;&lt;p&gt;The Institute of Iron and Steel Technology is equipped with two technical facilities: a melt shop and a heat treatment shop, as well as three laboratories specializing in metallography, analytical methods, and thermophysical properties. The melt shop features a variety of advanced equipment, including vacuum induction melting and casting furnaces, high- and medium-frequency induction furnaces, an electroslag remelting unit, atomization systems for metal powder production, and a cold crucible induction furnace. In 2018, the Vacuum Induction Melting furnace (VIM12) was upgraded with a vacuum casting chamber and a casting simulator, enabling simulations of conditions in continuous casting molds. In 2020, the H&lt;sub&gt;2&lt;/sub&gt; retort for reducing iron oxide carriers was upgraded with precision balances and gas mass spectrometers. Further advancements followed in 2022, with the addition of EIGA (Electrode Inert Gas Atomization) technology to the VIGA (Vacuum Inert Gas Atomization) unit, allowing refractory metals to be atomized at temperatures up to 2400 °C. The laboratory for thermophysical properties is equipped with SHTT and DHTT (Single and Double Hot Thermocouple Technique) apparatus to study the crystallization behavior of slags, as well as equipment to measure surface tension, density, and viscosity of molten metals and slags, and equipment to characte","PeriodicalId":21929,"journal":{"name":"steel research international","volume":"96 5","pages":""},"PeriodicalIF":1.9,"publicationDate":"2025-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/srin.202500096","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143892937","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}

{"title":"Contents: steel research int. 5/2025","authors":"","doi":"10.1002/srin.202570053","DOIUrl":"https://doi.org/10.1002/srin.202570053","url":null,"abstract":"","PeriodicalId":21929,"journal":{"name":"steel research international","volume":"96 5","pages":""},"PeriodicalIF":1.9,"publicationDate":"2025-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/srin.202570053","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143892936","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}

{"title":"Optimization of the VCRpro Backup Rolls for 2250 mm Continuously Variable Crown Hot Strip Mills Based on Particle Swarm Optimization Algorithm","authors":"Lei Sun,&nbsp;Jianguo Cao,&nbsp;Wenhui Xia,&nbsp;Yang Chen,&nbsp;Xingyong Tan,&nbsp;Zhiwei Lei","doi":"10.1002/srin.202500062","DOIUrl":"https://doi.org/10.1002/srin.202500062","url":null,"abstract":"<p>In order to solve the long-standing issue of uneven wear on backup rolls and promote the roll gap stiffness in the 2250 mm continuously variable crown hot strip mills, this study presents an optimization method for the design of the varying contact backup roll promotion (VCRpro) backup rolls to eliminate effectively the undesired contact zones between the work and backup rolls. First, the VCRpro contour represented by a cosine function is established based on the particle swarm optimization algorithm. Then, the 3D finite element model is established to investigate the contact pressures between the rolls under different shifting positions, bending forces, strip widths, and rolling forces. The results demonstrate that the regulation efficiency of the bending force has been enhanced. In comparison with the conventional backup rolls, the crown regulation ability of the bending force has an increase of 19.38%. And the roll gap stiffness has a rise of 15.52%. Moreover, the unevenness coefficient has experienced a maximum reduction of 35% and an average reduction of 25.77%. Industrial production results demonstrated that the VCRpro backup rolls significantly reduce the wear of the rolls compared to the conventional backup rolls, with an improvement of 10.54% in roll self-maintaining.</p>","PeriodicalId":21929,"journal":{"name":"steel research international","volume":"96 10","pages":"564-580"},"PeriodicalIF":2.5,"publicationDate":"2025-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145197209","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}

{"title":"Issues and Concern in Dissimilar Joining Including Additive Manufacturing with Specific Emphasis to Maraging Steels with other High-Strength Steels—A Comprehensive Review","authors":"Bharat Behl,&nbsp;Tapas Kumar Bandhopadhyay","doi":"10.1002/srin.202400884","DOIUrl":"https://doi.org/10.1002/srin.202400884","url":null,"abstract":"<p>Maraging steel has a wide variety of applications that include landing gear in aerospace to armed vehicles and ballistic protection in defense. This leads to considerable demand for development of appropriate processing routes that include joining methods of the same. One of the most complicated joining processes is dissimilar welding due to compositional and microstructural differences among the two materials that make the feasibility of joining/welding more complex. In this review, an attempt is made to review and analyze welding processes with respect to dissimilar welding of maraging steel. Further application of welding/joining in additive manufacturing of maraging steel is considered. Previous analysis of welding of maraging steel is incorporated in the study to understand the issues in similar joining as well. Research indicates that major issues lie on selection of filler material, heat input, metallurgical compatibility of two dissimilar materials, residual stress, and reverted austenite, among others. Researchers have postulated proper selection of parameters for dissimilar joining of maraging steel with high-strength steel like 300M, 316L SS, H13 tool steel, martensitic steel, austenitic steel, dual-phase steel etc. An attempt is made to postulate a theoretical framework for welding of maraging steel with other ultrahigh-strength steel in the end.</p>","PeriodicalId":21929,"journal":{"name":"steel research international","volume":"96 10","pages":"80-111"},"PeriodicalIF":2.5,"publicationDate":"2025-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145197285","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}

{"title":"Contents: steel research int. 4/2025","authors":"","doi":"10.1002/srin.202570043","DOIUrl":"https://doi.org/10.1002/srin.202570043","url":null,"abstract":"","PeriodicalId":21929,"journal":{"name":"steel research international","volume":"96 4","pages":""},"PeriodicalIF":1.9,"publicationDate":"2025-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/srin.202570043","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143735440","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}

{"title":"Editorial for Science and Technology of Ironmaking and Steelmaking (IIT Bombay)","authors":"","doi":"10.1002/srin.202401074","DOIUrl":"https://doi.org/10.1002/srin.202401074","url":null,"abstract":"&lt;p&gt;Iron and Steel is a global industry with about 70% of the production concentrated in Asia. Steel production from iron ore is energy intensive and emits approximately double the amount of carbon dioxide per ton of steel produced. On the other hand, the carbon dioxide emission intensity for steel production from recycled scrap is only about 0.35 tons of carbon dioxide per ton of steel. Hence, crude steel production through the scrap route is gaining momentum. However, the steel production from iron ore is expected to keep growing as many countries have their per capita steel consumption well below the world average. This calls for the global steel community to explore the possibilities of modifying the existing processes as well as to look for novel process routes that can make steel production more sustainable. India, being the second largest steel producer in the world now, has drawn a roadmap to drive the steel industry towards the net zero target by 2070. Steel plants, globally, including those in India, are actively looking for sustainable solutions. Further, digital tools such as AI/ML are also being leveraged to improve the existing steel production practices. Keeping these in focus, the 4th International Conference on Science and Technology of Ironmaking and Steelmaking (STIS-2022) was organized by the Centre of Excellence in Steel Technology (CoEST), Department of Metallurgical Engineering and Materials Science, Indian Institute of Technology Bombay at IIT Bombay from 13th–16th December 2022. The conference was supported by the Indian Institute of Metals (IIM) and the Association of Iron and Steel Technology, USA (AIST). This series of conferences, an Indian initiative, provides a platform for the global steel community consisting of academicians, researchers, industrial experts, technology providers, students, etc. to discuss and deliberate on innovative approaches and solutions.&lt;/p&gt;&lt;p&gt;There were 115 presentations during the conference. In addition, two panel discussions were also organized: 1) Digitalization in the steel industry and 2) Decarbonization of the steel industry. The conference had an active participation from the academia as well as the steel industry. The presentation topics spanned from agglomeration of iron ore to continuous casting. The authors submitted short manuscripts which were reviewed by a pool of leading researchers in the field. The reviewed short manuscripts were published in the conference proceedings. Based on the reviewers’ feedback, a few authors were invited to submit full manuscripts to be considered for publication in the Steel Research International. These manuscripts were reviewed and considered for publication in the Steel Research International as per the standard reviewing practice of the journal. We thank all the reviewers for their critical reviews that helped in choosing the articles for this special issue.&lt;/p&gt;&lt;p&gt;We are delighted to inform the readers that thirteen original research articles h","PeriodicalId":21929,"journal":{"name":"steel research international","volume":"96 4","pages":""},"PeriodicalIF":1.9,"publicationDate":"2025-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/srin.202401074","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143735441","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}

{"title":"Effect of Welding Methods on Microstructure and Mechanical Properties of Welded Joints of Low-Temperature Carbon–Manganese Steel VL4-4","authors":"Rui Lou,&nbsp;Dong Zhu,&nbsp;Xiangping Xu,&nbsp;Chunzhi Xia,&nbsp;Jinzhe Zeng","doi":"10.1002/srin.202500079","DOIUrl":"https://doi.org/10.1002/srin.202500079","url":null,"abstract":"<p>Carbon–manganese steel is widely used in the transportation and storage of liquefied petroleum gas (LPG) as a low-cost and high-performance low-temperature steel. This article investigates the microstructure and mechanical properties of the VL4-4 (a novel low-temperature carbon-manganese steel used in LPG fuel tanks) welded joint, with a focus on the effects of three welding methods: shielded metal arc welding (SMAW), submerged arc welding (SAW), and flux-cored wire gas-shielded welding (FCAW). Microstructural analysis reveals similar microstructures across all methods: the weld metal primarily consists of acicular ferrite and primary eutectic ferrite, while the heat-affected zone (HAZ) features slate martensite and bainite. In addition, nonmetallic inclusions are found in the HAZ, which contributed to the generation of needle-like ferrite, refined grain size, and improved strength and toughness. Fractographic analysis shows that the HAZ fracture surfaces of SMAW and SAW joints exhibit tough-brittle mixed fractures. In contrast, FCAW joints display a typical tough fracture. In terms of mechanical performance, the welded joints produced by all three welding methods exhibit superior mechanical properties compared to the VL4-4 low-temperature carbon–manganese steel base material. Among them, FCAW joints demonstrate superior overall performance.</p>","PeriodicalId":21929,"journal":{"name":"steel research international","volume":"96 10","pages":"454-463"},"PeriodicalIF":2.5,"publicationDate":"2025-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145197115","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}

{"title":"The Transformation of Residual δ Ferrite in Nuclear-Grade 316H Stainless Steel under Aging and Its Influence on Properties","authors":"Guang-Han Xin,&nbsp;Xin Geng,&nbsp;Zhou-Hua Jiang","doi":"10.1002/srin.202400933","DOIUrl":"https://doi.org/10.1002/srin.202400933","url":null,"abstract":"<p>To investigate the transformation behavior of residual δ-ferrite in nuclear-grade 316H stainless steel during aging and its effects on mechanical properties and intergranular corrosion resistance, high-temperature aging experiments are conducted at 750 °C for 2000 h on three heats of steel with varying δ-ferrite contents. Microstructural changes are analyzed using scanning electron microscopy–energy-dispersive X-ray spectroscopy, X-ray diffraction, and mechanical and intergranular corrosion tests. The results show significant transformations of residual δ-ferrite during aging. Initially, δ-ferrite transforms into M₂₃C₆, which grows within ferrite islands. With extended aging, M₂₃C₆ evolves into coarser rod-shaped σ phases, accompanied by chain-like M₂₃C₆ precipitates at grain boundaries. Further aging results in M₂₃C₆ and σ phases transforming into secondary austenite. Higher δ-ferrite content suppresses grain boundary M₂₃C₆ precipitation, leading to σ phase dominance, whereas lower δ-ferrite content results in M₂₃C₆ as the primary residual phase. Mechanical properties show an initial decrease, then increase, followed by stabilization in yield and tensile strength, while plasticity and impact toughness initially decrease and later improve. Higher δ-ferrite content enhances strength but reduces plasticity and toughness. Lower δ-ferrite content increases susceptibility to intergranular corrosion during aging, but long-term aging effectively mitigates this corrosion.</p>","PeriodicalId":21929,"journal":{"name":"steel research international","volume":"96 10","pages":"511-525"},"PeriodicalIF":2.5,"publicationDate":"2025-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145197116","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}