steel research international最新文献_第2页

The Mechanism of the Impact of Purity on Resistivity is Reflected in the Steel Collector Bar Used in the Aluminum Electrolytic Cell 铝电解槽用钢集电棒反映了纯度对电阻率影响的机理

IF 2.5 3区材料科学

steel research international Pub Date : 2026-04-01 Epub Date: 2025-10-09 DOI: 10.1002/srin.202500703

Gangsheng Xie, Di Zhang, Jing Feng, Pengshihan Bai, Jinming Li, Han Yi, Tengshi Liu, Jiaxin Bai, Xiaohong Chang, Han Dong

{"title":"The Mechanism of the Impact of Purity on Resistivity is Reflected in the Steel Collector Bar Used in the Aluminum Electrolytic Cell","authors":"Gangsheng Xie, Di Zhang, Jing Feng, Pengshihan Bai, Jinming Li, Han Yi, Tengshi Liu, Jiaxin Bai, Xiaohong Chang, Han Dong","doi":"10.1002/srin.202500703","DOIUrl":"10.1002/srin.202500703","url":null,"abstract":"Reducing the resistivity of steel collector bars while maintaining mechanical strength is a critical challenge in enhancing the energy efficiency of aluminum electrolysis cells. This study aims to unravel the specific mechanism through which iron purity affects electrical resistivity. We systematically investigated three commercial steel grades—Q195 (99.23% Fe), SAE1006 (99.84% Fe), and a high-purity iron HYT2 (99.96% Fe)—serving as models with varying purity. Their microstructure, mechanical properties, and resistivity were characterized using optical microscopy, scanning electron microscopy (SEM), EBSD, and XRD. We conducted a quantitative analysis to decouple the individual contributions of grain boundaries, dislocations, and most importantly, impurity atoms to the overall resistivity. ANSYS simulations were employed to project the impact of these findings on the electric field distribution within an operational electrolysis cell. The results demonstrated that resistivity decreases significantly with increasing iron purity. Our quantitative analysis conclusively identified that among all factors,scattering from non-ferrous impurity atoms is the dominant mechanism governing resistivity, overshadowing the effects of grain size and dislocations. Implementing the high-purity HYT2 collector bar can potentially reduce the cathode voltage drop by 23 mV. This work provides a strong technical rationale for employing high-purity iron to achieve substantial energy savings in industrial aluminum production.","PeriodicalId":21929,"journal":{"name":"steel research international","volume":"97 4","pages":"1843-1855"},"PeriodicalIF":2.5,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147683592","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

Surface Enhancement of AISI 1045 Steels through Plasma Torch Assisted Advanced Manufacturing Nitriding Technology Utilizing AISI M50 High-Speed Bearing Steel Powders 利用aisim50高速轴承钢粉末等离子炬辅助先进制造渗氮技术对aisi1045钢表面的强化

IF 2.5 3区材料科学

steel research international Pub Date : 2026-04-01 Epub Date: 2025-10-16 DOI: 10.1002/srin.202500680

Hainan Zhang, Jianbo Yu, Jintao Jiang, Ying Dong, Xiaoxin Zhang, Xia Li, Zhigang Yang, Jiang Wang, Zhongming Ren

{"title":"Surface Enhancement of AISI 1045 Steels through Plasma Torch Assisted Advanced Manufacturing Nitriding Technology Utilizing AISI M50 High-Speed Bearing Steel Powders","authors":"Hainan Zhang, Jianbo Yu, Jintao Jiang, Ying Dong, Xiaoxin Zhang, Xia Li, Zhigang Yang, Jiang Wang, Zhongming Ren","doi":"10.1002/srin.202500680","DOIUrl":"10.1002/srin.202500680","url":null,"abstract":"This article adopts the method of plasma torch additive manufacturing nitrided technology using AISI M50 high-speed bearing steel powders to significantly improve the mechanical properties and corrosion resistance of the surface of AISI 1045 steel. By adjusting the plasma torch current parameters to 120, 140, and 160 A, the nitrogen content in the additive manufacturing nitrided layer is 0.267%, 0.375%, and 0.293%, respectively. The hardness and the tensile strength of the as-received AISI 1045 steels are 272 HV0.2 and 701 MPa, respectively. The hardness and tensile strength of the strengthened layer are increased to a maximum of 850 HV0.2 and 1336 MPa, respectively. The average wear coefficient of the AISI 1045 steels is 0.85, while the wear coefficient of the strengthened layer is reduced to a minimum of 0.55, significantly improving its wear resistance. During the tensile process, the martensitic structure and nitrogen-containing precipitates jointly produce a strong hindrance to dislocations, resulting in a significant increase in the tensile strength of the strengthened layer. Additionally, the corrosion potential and corrosion current density of the AISI 1045 steels are −0.6516 V and 8.8 × 10 − 6 (A cm −2). The corrosion potential and corrosion current density of the strengthened layer are improved to −0.2672 V and 2.2 × 10 − 6 (A cm −2), respectively.","PeriodicalId":21929,"journal":{"name":"steel research international","volume":"97 4","pages":"1932-1948"},"PeriodicalIF":2.5,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147684007","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

Evaluation and Optimization of the Antifluctuation Ability of Slag Components Based on Critical Circles 基于临界圈的炉渣构件抗波动能力评价与优化

IF 2.5 3区材料科学

steel research international Pub Date : 2026-04-01 Epub Date: 2025-10-02 DOI: 10.1002/srin.202500736

Yijian Zhang, Kexin Jiao, Jianliang Zhang, Xiaoyue Fan

{"title":"Evaluation and Optimization of the Antifluctuation Ability of Slag Components Based on Critical Circles","authors":"Yijian Zhang, Kexin Jiao, Jianliang Zhang, Xiaoyue Fan","doi":"10.1002/srin.202500736","DOIUrl":"10.1002/srin.202500736","url":null,"abstract":"Traditional research has primarily focused on the performance of slag, but there is little research on the allowable composition fluctuation range of slag. In this study, an innovative approach, utilizing the critical circle radius to represent the slag composition range. The results show that as the Al2O3 content increases from 13 to 16 wt%, the proportion of the liquid-phase area expands from 25.9 to 28 wt%. Critical circle analysis reveals that at 1480 °C, when the MgO content reaches 8 wt%, the critical circle radius is maximized, indicating the largest composition fluctuation range. Under low Al2O3 conditions, basicity is the primary limiting factor for the inscribed circle radius. As Al2O3 content increases from 10 to 25 wt%, the optimal slag basicity initially rises and then declines. With the decrease of liquid-phase temperature from 1480 to 1440 °C, the slag's capacity to tolerate Al2O3 decreases, and the optimal critical Al2O3 content reduces. Increasing MgO content enhances the slag's tolerance to Al2O3. When the liquid-phase temperature is lowered to 1420 °C, the optimal critical Al2O3 content is 12.5 wt%, and the MgO content is controlled to be 5 wt%. The corresponding critical circle radius is the largest.","PeriodicalId":21929,"journal":{"name":"steel research international","volume":"97 4","pages":"1910-1918"},"PeriodicalIF":2.5,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147683055","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. 4/2026 内容：钢铁研究；4/2026

IF 2.5 3区材料科学

steel research international Pub Date : 2026-04-01 DOI: 10.1002/srin.70478

引用次数: 0

Revisiting Strengthening Mechanisms in Ultrahigh Strength Martensitic Steel: Role of Solute Carbon and Precipitation Behavior 重新探讨超高强度马氏体钢的强化机制：溶质碳的作用和析出行为

IF 2.5 3区材料科学

steel research international Pub Date : 2026-04-01 Epub Date: 2025-10-02 DOI: 10.1002/srin.202500782

Seong-Ha Son, Siwook Park, Yongjin Kim, I-Joon Ro, Se-Ho Kim, Dong-Woo Suh

{"title":"Revisiting Strengthening Mechanisms in Ultrahigh Strength Martensitic Steel: Role of Solute Carbon and Precipitation Behavior","authors":"Seong-Ha Son, Siwook Park, Yongjin Kim, I-Joon Ro, Se-Ho Kim, Dong-Woo Suh","doi":"10.1002/srin.202500782","DOIUrl":"10.1002/srin.202500782","url":null,"abstract":"This study presents a quantitative analysis of the strengthening mechanisms influencing the yield strength of low-carbon, ultrahigh-strength martensitic steels subjected to quenching and tempering. Four principal mechanisms—solid solution strengthening, grain boundary strengthening, dislocation strengthening, and precipitation strengthening—are systematically evaluated using advanced microstructural characterization techniques. The results showed that grain boundary strengthening is relatively insensitive to tempering temperature, while dislocation and solid solution strengthening are notably enhanced at lower tempering temperatures due to sluggish recovery and the retention of solute carbon, respectively. Although precipitation strengthening did not make a significant contribution, it strongly influences solid solution strengthening by modulating the solute carbon concentration. Accounting for the effect of solute carbon substantially improves the correlation between calculated and experimental yield strengths. This study highlights the interplay between precipitation hardening and solid solution strengthening in determining the mechanical properties of martensitic steels, providing valuable guidance for alloy design and heat treatment optimization.","PeriodicalId":21929,"journal":{"name":"steel research international","volume":"97 4","pages":"1856-1865"},"PeriodicalIF":2.5,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147683054","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

Advances in the Application of Machine Vision in Steelmaking Processes 机器视觉在炼钢过程中的应用进展

IF 2.5 3区材料科学

steel research international Pub Date : 2026-04-01 Epub Date: 2025-11-08 DOI: 10.1002/srin.202500769

Xiancheng Wang, Fei He, Chuang Xu, Tianqi Wu, Xujie Zhuang, Ran Zhang, Wantong Xie, Yue Liu, Hanwei Li

{"title":"Advances in the Application of Machine Vision in Steelmaking Processes","authors":"Xiancheng Wang, Fei He, Chuang Xu, Tianqi Wu, Xujie Zhuang, Ran Zhang, Wantong Xie, Yue Liu, Hanwei Li","doi":"10.1002/srin.202500769","DOIUrl":"10.1002/srin.202500769","url":null,"abstract":"To enhance steelmaking efficiency, guarantee product quality, and ensure process stability, the global steel industry is rapidly advancing toward intelligent transformation. As a key component of artificial intelligence, machine vision technology is being increasingly integrated into all stages of the steelmaking process. This article systematically reviews advancements in hardware architecture and the evolution of algorithmic models from traditional image processing and machine learning to deep learning in machine vision technology. Subsequently, it summarizes the current applications of this technology across the hot metal pretreatment, converter steelmaking, secondary refining, continuous casting, and others. Finally, this review consolidates the core advantages of machine vision in steelmaking: optimizing smelting processes, enabling precise prediction of abnormal operating conditions, facilitating accurate product classification/grading, and enhancing automation by reducing manual intervention. Future development trajectories are summarized as follows: focus on transitioning from isolated applications to systematic integration, ensuring input data quality and reliability, enhancing model interpretability, and integrating machine vision with digital twin technology.","PeriodicalId":21929,"journal":{"name":"steel research international","volume":"97 4","pages":"1813-1830"},"PeriodicalIF":2.5,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147683388","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 Magnesium on Secondary Phases and Banded Structures in H13 Hot-Work Die Steel 镁对H13热加工模具钢二次相及带状组织的影响

IF 2.5 3区材料科学

steel research international Pub Date : 2026-04-01 Epub Date: 2025-10-08 DOI: 10.1002/srin.202500915

Dengping Ji, Chunlei Hao, Wen Wang, Xiangyu Xu, Jianxun Fu

{"title":"Effects of Magnesium on Secondary Phases and Banded Structures in H13 Hot-Work Die Steel","authors":"Dengping Ji, Chunlei Hao, Wen Wang, Xiangyu Xu, Jianxun Fu","doi":"10.1002/srin.202500915","DOIUrl":"10.1002/srin.202500915","url":null,"abstract":"H13 hot-work die steel is the most widely utilized hot-work tooling material globally. This study systematically investigates the effects of magnesium on secondary phases, elemental segregation, and hardness in H13 steel using optical microscopy, scanning electron microscopy, energy-dispersive spectroscopy, electron probe microanalysis, and micro-Vickers hardness testing. Key findings demonstrate that magnesium modifies inclusions by transforming Al2O3–CaO–SiO2 complex inclusions into discrete AlMgO4 (spinel) and MgO particles. This modification significantly increases the population of inclusions smaller than 3 μm while virtually eliminating inclusions larger than 8 μm, concurrently reducing chained inclusion clusters. The steel exhibits banded microstructures parallel to the rolling direction, characterized by alternating bright and dark bands. Elemental mapping confirms pronounced segregation of C, Mo, and Cr within dark bands, where V-rich primary MC-type carbides preferentially form. Magnesium addition refines these dark bands, yielding a more uniform distribution while simultaneously reducing the quantity and size of primary carbides. Crucially, magnesium enhances both the magnitude and uniformity of matrix microhardness. These improvements stem from Mg's ability to mitigate elemental segregation, thereby optimizing carbide distribution and ultimately elevating the steel's hardness and service performance.","PeriodicalId":21929,"journal":{"name":"steel research international","volume":"97 4","pages":"1866-1876"},"PeriodicalIF":2.5,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147683523","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 Tellurium Modification on MnS Inclusions in Nonquenched and Tempered Steel 碲改性对非调质钢中MnS夹杂物的影响

IF 2.5 3区材料科学

steel research international Pub Date : 2026-04-01 Epub Date: 2025-10-09 DOI: 10.1002/srin.202500734

Qian Meng, Xin Zong, Wen Wang, Jingxian Liu, Jianxun Fu

{"title":"Effect of Tellurium Modification on MnS Inclusions in Nonquenched and Tempered Steel","authors":"Qian Meng, Xin Zong, Wen Wang, Jingxian Liu, Jianxun Fu","doi":"10.1002/srin.202500734","DOIUrl":"10.1002/srin.202500734","url":null,"abstract":"To improve the machinability and service reliability of nonquenched and tempered steel, this study combines experiments with theoretical simulations to elucidate the synergistic effects of tellurium (Te) on the morphological evolution, hot deformation behavior, interfacial matching, and mechanical performance of MnS. The results show that in steel, the main inclusions are large, elongated MnS particles, which are prone to plastic deformation during hot working. When the Te content in the steel reaches 0.016%, the original inclusions are transformed into MnTe–MnS composite inclusions with smaller sizes and morphologies approaching spherical or ellipsoidal shapes. These composite inclusions exhibit excellent morphological stability during high-temperature deformation. First-principles calculation results indicate that MnTe has a relatively high bulk modulus but lower shear modulus, Young's modulus, and hardness, exhibiting characteristics of ductility. 2D lattice disregistry analysis further indicates that MnTe matches MnS better than either phase matches the Fe matrix, and MnTe also shows superior lattice compatibility with Fe. Consequently, MnTe is more likely to nucleate on MnS surfaces, forming stable MnTe–MnS that alleviate stress concentration at the inclusion–matrix interface and enhance interfacial bonding stability. These findings provide a theoretical basis for regulating sulfide inclusion morphology in steel and for optimizing its microstructure and mechanical properties.","PeriodicalId":21929,"journal":{"name":"steel research international","volume":"97 4","pages":"2012-2022"},"PeriodicalIF":2.5,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147683573","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

Optimization of Power Curve in Induction Heating Tundish During Multi-Ladle Teeming 多包浇注过程中感应加热中间包功率曲线的优化

IF 2.5 3区材料科学

steel research international Pub Date : 2026-03-02 Epub Date: 2025-08-30 DOI: 10.1002/srin.202500682

Qiao Cheng, Xianwen Luo, Haibiao Lu, Yunbo Zhong, Weili Ren, Zuosheng Lei

{"title":"Optimization of Power Curve in Induction Heating Tundish During Multi-Ladle Teeming","authors":"Qiao Cheng, Xianwen Luo, Haibiao Lu, Yunbo Zhong, Weili Ren, Zuosheng Lei","doi":"10.1002/srin.202500682","DOIUrl":"https://doi.org/10.1002/srin.202500682","url":null,"abstract":"Induction heating (IH) is widely used to compensate for the temperature drop in the tundish during continuous casting of high-quality slabs. There has been a core challenge to achieve the low superheat and constant temperature casting due to significant temperature fluctuation under multi-ladle teeming. In the current study, a mathematical model coupling the electromagnetic field, flow field, temperature field, and inclusion transport is established for an IH tundish. The influence of IH power is investigated, and a dynamic IH power control method is proposed. The results show that IH significantly alters the flow pattern, inducing a downward steel stream in the discharging chamber due to eccentric electromagnetic force. IH can also achieve temperature compensation; the superheat can be controlled to within ±2 K under the condition of dynamic IH power. The relationship between the variation of temperature and IH power is linear after the mean residence time is reached. Additionally, IH enhances the removal rate of inclusions, reaching up to 86.48% under the dynamic IH condition.","PeriodicalId":21929,"journal":{"name":"steel research international","volume":"97 3","pages":"1323-1333"},"PeriodicalIF":2.5,"publicationDate":"2026-03-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147570341","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. 3/2026 内容：钢铁研究；3/2026

IF 2.5 3区材料科学

steel research international Pub Date : 2026-03-02 DOI: 10.1002/srin.70436

引用次数: 0