Journal of Materials Research and Technology-Jmr&t最新文献

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Combining in-situ technology to study the influence of bainite morphology on the strength and toughness properties of medium-carbon bainitic steel
IF 6.2 2区 材料科学
Journal of Materials Research and Technology-Jmr&t Pub Date : 2025-03-12 DOI: 10.1016/j.jmrt.2025.03.106
Yu Zhang , Wei Liu , Xiaoyan Long , Zeliang Liu , Yanguo Li , Zhinan Yang , Yi Zhang
{"title":"Combining in-situ technology to study the influence of bainite morphology on the strength and toughness properties of medium-carbon bainitic steel","authors":"Yu Zhang ,&nbsp;Wei Liu ,&nbsp;Xiaoyan Long ,&nbsp;Zeliang Liu ,&nbsp;Yanguo Li ,&nbsp;Zhinan Yang ,&nbsp;Yi Zhang","doi":"10.1016/j.jmrt.2025.03.106","DOIUrl":"10.1016/j.jmrt.2025.03.106","url":null,"abstract":"<div><div>The microstructure of bainitic steel was controlled through continuous cooling in the medium-temperature region. The influence of cooling rate on the microstructure and its effects on the strength and toughness of bainitic steel were investigated using transmission electron microscope (TEM), electron backscatter diffraction (EBSD), and X-ray diffraction (XRD). Experimental results indicate that as the cooling rate increases from 0.1 to 4 °C/s, the microstructure evolves from granular bainite to lath bainite, characterized by a high-density interface. At higher cooling rates, the samples exhibit enhanced strength and impact energy, attributed to dislocation strengthening and fine-grained strengthening mechanisms. Additionally, the presence of high-angle grain boundaries and filmy retained austenite within the microstructure contributes to improved toughness. Conversely, at a cooling rate of 0.1 °C/s, martensite/austenite(M/A) constituents and low-stability massive retained austenite do not favorably influence toughness improvement; however, increased retained austenite delays necking onset and promotes uniform plastic deformation. Combining in-situ phase transformation and tensile analysis, it is evident that phase transformations significantly affect tensile strain distribution. Specifically, temperature selection and the driving force for phase transformation influence the variation in size and orientation, thereby affecting strain distribution during tensile testing.</div></div>","PeriodicalId":54332,"journal":{"name":"Journal of Materials Research and Technology-Jmr&t","volume":"36 ","pages":"Pages 34-44"},"PeriodicalIF":6.2,"publicationDate":"2025-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143620794","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Spinning solution viscosity reducing and wet spinning of carbon black-based elastic conductive fibers for sports monitoring and healthcare electrical heating
IF 6.2 2区 材料科学
Journal of Materials Research and Technology-Jmr&t Pub Date : 2025-03-12 DOI: 10.1016/j.jmrt.2025.03.096
Jiajia Zhuang , Yang Liu , Dongling Bian , Fang He , Yunyu Li , Wei Fan
{"title":"Spinning solution viscosity reducing and wet spinning of carbon black-based elastic conductive fibers for sports monitoring and healthcare electrical heating","authors":"Jiajia Zhuang ,&nbsp;Yang Liu ,&nbsp;Dongling Bian ,&nbsp;Fang He ,&nbsp;Yunyu Li ,&nbsp;Wei Fan","doi":"10.1016/j.jmrt.2025.03.096","DOIUrl":"10.1016/j.jmrt.2025.03.096","url":null,"abstract":"<div><div>Elastic conductive fibers are of significant importance in the development of smart wearable strain sensors and electrically heated healthcare fabrics. Nevertheless, considerable quantity of conductive particles has to be incorporated into the fibers for the high conductivity, which would result in a notable increase in the viscosity of the spinning solution. The present study reports a wet spinning carbon black-based composite elastic conductive fiber utilizing copper flake powder to reduce the viscosity of the spinning solution (reduces viscosity by approximately 33%) with enhanced electrical conductivity (up to 56.4 S/m). The fibers can be prepared continuously and in large quantities (laboratory: 10.613 m/min). Moreover, the composite conductive fibers showed excellent durability after bending, cyclic stretching plus unloading (&gt;10,000 cycles) and cyclic washing and drying (&gt;10 cycles) with small changes in electrical properties. When employed as a wearable sensor, the fiber enables the continuous, real-time monitoring of alterations in the kinematic behavior of the body's four major movement joints. Furthermore, the temperature of a healthcare heater by weaving a plain fabric using the conductive fibers as weft can reach up to 38 °C by gradually introducing heat within the safe voltage range for the human body, which prevents the human body from being subjected to low temperatures injury. This demonstrates the potential of this composite elastic conductive fiber in the smart wearable textiles and electrically heated fabrics.</div></div>","PeriodicalId":54332,"journal":{"name":"Journal of Materials Research and Technology-Jmr&t","volume":"36 ","pages":"Pages 1-12"},"PeriodicalIF":6.2,"publicationDate":"2025-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143609705","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Corrigendum to ‘Acquiring a low yield ratio well synchronized with enhanced low-temperature toughness in 550MPa grade bridge steels through intercritical quenching treatment’ [J Mater Res Technol 35 (2025) 6198–6210 13202]
IF 6.2 2区 材料科学
Journal of Materials Research and Technology-Jmr&t Pub Date : 2025-03-12 DOI: 10.1016/j.jmrt.2025.03.059
Lu Zhu , Bo Gao , Jun Wang , Runnong Chen , Yinpeng Wang , Chunhui Jiang , Yanguang Cao , Zhaodong Li
{"title":"Corrigendum to ‘Acquiring a low yield ratio well synchronized with enhanced low-temperature toughness in 550MPa grade bridge steels through intercritical quenching treatment’ [J Mater Res Technol 35 (2025) 6198–6210 13202]","authors":"Lu Zhu ,&nbsp;Bo Gao ,&nbsp;Jun Wang ,&nbsp;Runnong Chen ,&nbsp;Yinpeng Wang ,&nbsp;Chunhui Jiang ,&nbsp;Yanguang Cao ,&nbsp;Zhaodong Li","doi":"10.1016/j.jmrt.2025.03.059","DOIUrl":"10.1016/j.jmrt.2025.03.059","url":null,"abstract":"","PeriodicalId":54332,"journal":{"name":"Journal of Materials Research and Technology-Jmr&t","volume":"36 ","pages":"Page 45"},"PeriodicalIF":6.2,"publicationDate":"2025-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143620878","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Advancing conductivity modeling: A unified framework for polymer carbon black nanocomposites
IF 6.2 2区 材料科学
Journal of Materials Research and Technology-Jmr&t Pub Date : 2025-03-12 DOI: 10.1016/j.jmrt.2025.03.104
Yasser Zare , Muhammad Naqvi , Kyong Yop Rhee , Soo-Jin Park
{"title":"Advancing conductivity modeling: A unified framework for polymer carbon black nanocomposites","authors":"Yasser Zare ,&nbsp;Muhammad Naqvi ,&nbsp;Kyong Yop Rhee ,&nbsp;Soo-Jin Park","doi":"10.1016/j.jmrt.2025.03.104","DOIUrl":"10.1016/j.jmrt.2025.03.104","url":null,"abstract":"<div><div>Although numerous experimental data on the conductivity of polymer carbon black (CB) nanocomposites (PCBs) have been reported, the modeling approaches remain incomplete and require further attention. This article proposes a simplified model for predicting the PCB electrical conductivity, incorporating key parameters such as CB radius (<em>R</em>), tunneling distance (<em>λ</em>), contact diameter (<em>d</em>), interphase depth, network percentage, and interfacial tension between CB and polymer. Experimental PCB conductivity data and parametric evaluations are utilized to validate the proposed model. The proposed model predicts that the thinnest and widest tunnels (<em>λ</em> = 2 nm and <em>d</em> = 30 nm) attain a maximum conductivity of 5.5 S/m. However, tunnels bigger than 4 nm cannot enhance the conductivity. Additionally, increasing the concentration of the smallest CBs (<em>R</em> = 10 nm) to 10 vol% boosts PCB conductivity to 4.9 S/m, whereas low concentrations (&lt;5 vol%) of larger CBs (<em>R</em> &gt; 17 nm) have negligible effect. These findings underscore the critical roles of tunneling dimensions together with CB size and concentration in the conductivity of this system.</div></div>","PeriodicalId":54332,"journal":{"name":"Journal of Materials Research and Technology-Jmr&t","volume":"36 ","pages":"Pages 26-33"},"PeriodicalIF":6.2,"publicationDate":"2025-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143620800","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Structural evolution and precipitation behavior of titanium diboride-reinforced 7075Al composites during multi-pass rolling
IF 6.2 2区 材料科学
Journal of Materials Research and Technology-Jmr&t Pub Date : 2025-03-11 DOI: 10.1016/j.jmrt.2025.03.066
Mengying Zhu , Zhefeng Xu , Ruidong Yang , Mingteng Wei , Satoshi Motozuka , Jianglong Gu , Gen Sasaki , Jinku Yu
{"title":"Structural evolution and precipitation behavior of titanium diboride-reinforced 7075Al composites during multi-pass rolling","authors":"Mengying Zhu ,&nbsp;Zhefeng Xu ,&nbsp;Ruidong Yang ,&nbsp;Mingteng Wei ,&nbsp;Satoshi Motozuka ,&nbsp;Jianglong Gu ,&nbsp;Gen Sasaki ,&nbsp;Jinku Yu","doi":"10.1016/j.jmrt.2025.03.066","DOIUrl":"10.1016/j.jmrt.2025.03.066","url":null,"abstract":"<div><div>In this study, titanium diboride (TiB<sub>2</sub>)-reinforced 7075Al matrix composites with a bimodal structure were prepared by spark plasma sintering combined with multi-pass rolling. Structural evolution and precipitation behavior of interfacial micro-zones during multi-pass rolling were systematically studied. The results showed well bonding of the TiB<sub>2</sub>/Al interfaces within sintered and rolled composites. After 50 % rolling deformation, the interfacial micro-zones mainly consisted of precipitated η′ and coarse η phases. The combined effect of mismatch dislocations, strain differences, and solute-rich atomic regions at the semi-coherent TiB<sub>2</sub>/Al interface promoted local precipitation behavior of interfacial micro-zones during rolling, causing the density of the precipitated phases in the interfacial micro-zones to be higher than that in the matrix region. With the increase in rolling deformation, the strain in the interfacial micro-zone and the thickness of the solute-rich atomic region decreased continuously, while the density and homogeneity of the precipitated phases increased simultaneously. The composites exhibited bimodal structural features with the highest back stress and geometrically necessary dislocation density after 85 % deformation in multi-pass rolling, and the generation of bimodal structures was primarily related to the competition between the driving force of strain storage energy for grain growth and the inhibiting force of TiB<sub>2</sub> on grain boundary migration.</div></div>","PeriodicalId":54332,"journal":{"name":"Journal of Materials Research and Technology-Jmr&t","volume":"36 ","pages":"Pages 46-61"},"PeriodicalIF":6.2,"publicationDate":"2025-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143620792","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Effect of Al addition on mechanical and corrosion behavior of B10 alloy
IF 6.2 2区 材料科学
Journal of Materials Research and Technology-Jmr&t Pub Date : 2025-03-08 DOI: 10.1016/j.jmrt.2025.03.064
Jiawei Huang , Jing Xu , Bo Guan , Rui Fu , Qiang Hu , Wenzheng Liu , Zhi Hu
{"title":"Effect of Al addition on mechanical and corrosion behavior of B10 alloy","authors":"Jiawei Huang ,&nbsp;Jing Xu ,&nbsp;Bo Guan ,&nbsp;Rui Fu ,&nbsp;Qiang Hu ,&nbsp;Wenzheng Liu ,&nbsp;Zhi Hu","doi":"10.1016/j.jmrt.2025.03.064","DOIUrl":"10.1016/j.jmrt.2025.03.064","url":null,"abstract":"<div><div>The effects of different Al contents (0, 1, 3, and 5 wt%) on the mechanical properties and corrosion behavior of Cu–10Ni-x Al alloy were studied by tensile test, immersion test and electrochemical test. The results demonstrate that a certain Al addition can effectively enhance the mechanical properties of the Cu–10Ni alloy without sacrificing corrosion resistance. That is, Cu–10Ni-1 Al alloy exhibits the best comprehensive properties after thermo-mechanical treatment. The tensile strength is 658 MPa, the elongation is 15.45%, and the corrosion rate is 0.03775 mm/y. Electron backscatter diffraction (EBSD) and transmission electron microscopy (TEM) results show that the Ni<sub>3</sub>Al phase precipitated during the aging process inhibits the recrystallization behavior of the alloy. Therefore, the strength of Cu–10Ni alloy increases as increase Al content, due to solid solution strengthening, deformation strengthening, and precipitation strengthening. However, the formation of micro-galvanic corrosion between the Ni<sub>3</sub>Al precipitates and the matrix reduces the corrosion resistance of the alloy.</div></div>","PeriodicalId":54332,"journal":{"name":"Journal of Materials Research and Technology-Jmr&t","volume":"36 ","pages":"Pages 13-25"},"PeriodicalIF":6.2,"publicationDate":"2025-03-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143620793","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
High-strength Au–Au bonding for temperature and pressure integrated sensor
IF 6.2 2区 材料科学
Journal of Materials Research and Technology-Jmr&t Pub Date : 2025-01-16 DOI: 10.1016/j.jmrt.2025.01.118
Mimi Huang , Yong Xia , Xiangguang Han , Yi Gao , Shuai Chen , Zeyu Cui , Cheng Zhang , Yushan Gao , Zhixia Qiao , Yang Lv , Xiaowei Hou , Chenying Wang , Ping Yang , Libo Zhao
{"title":"High-strength Au–Au bonding for temperature and pressure integrated sensor","authors":"Mimi Huang ,&nbsp;Yong Xia ,&nbsp;Xiangguang Han ,&nbsp;Yi Gao ,&nbsp;Shuai Chen ,&nbsp;Zeyu Cui ,&nbsp;Cheng Zhang ,&nbsp;Yushan Gao ,&nbsp;Zhixia Qiao ,&nbsp;Yang Lv ,&nbsp;Xiaowei Hou ,&nbsp;Chenying Wang ,&nbsp;Ping Yang ,&nbsp;Libo Zhao","doi":"10.1016/j.jmrt.2025.01.118","DOIUrl":"10.1016/j.jmrt.2025.01.118","url":null,"abstract":"<div><div>With the development of intelligent and integrated electronic devices, leadless integrated sensors have a broad development. One of the most critical processes in TSV (Through Silicon Via) leadless packaging is Au–Au bonding, which the bond strength determines the success or failure of sensor preparation. In this research, the effect of the bonding temperature on the bonding strength was studied for the designed the temperature and pressure integrated sensor. To further increase the bonding strength, plasma treatment of the metal surface was applied. The influence of various plasma atmospheres and treatment times on the surface morphology, surface hydrophilicity, chemical state and the bonding rate were studied. And bonding interfaces under different bonding conditions were characterized. Finally, after 120 s of O<sub>2</sub> plasma treatment and bonding for 1 h at 450 °C and 4000 mbar, the bond strength was increased by 68%, reaching 27 MPa, which enhances the feasibility of the preparation of temperature and pressure integrated sensors.</div></div>","PeriodicalId":54332,"journal":{"name":"Journal of Materials Research and Technology-Jmr&t","volume":"35 ","pages":"Pages 1239-1249"},"PeriodicalIF":6.2,"publicationDate":"2025-01-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143103943","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Investigation on the fracture toughness of a low-density δ-quenching and partitioning steel sheet
IF 6.2 2区 材料科学
Journal of Materials Research and Technology-Jmr&t Pub Date : 2025-01-15 DOI: 10.1016/j.jmrt.2025.01.108
Z.L. Li , D.D. Cui , Y.S. Zhang , D. Chen , L. Gao , X.Q. Wang , X.W. Li
{"title":"Investigation on the fracture toughness of a low-density δ-quenching and partitioning steel sheet","authors":"Z.L. Li ,&nbsp;D.D. Cui ,&nbsp;Y.S. Zhang ,&nbsp;D. Chen ,&nbsp;L. Gao ,&nbsp;X.Q. Wang ,&nbsp;X.W. Li","doi":"10.1016/j.jmrt.2025.01.108","DOIUrl":"10.1016/j.jmrt.2025.01.108","url":null,"abstract":"<div><div>The low-density δ-quenching and partitioning (δ-QP) steels have been developed, showcasing excellent strength and ductility. However, studies on the fracture toughness related to practical applications still remain relatively scarce. In this work, the fracture toughness of 1180 MPa grade δ-QP steels was investigated using double edge notched tension (DENT) tests. The tempering treatment at 350 °C promotes carbon partitioning from martensite to austenite and ferrite, enhancing microstructural uniformity and reducing stress concentration, which significantly improve the fracture toughness of the QP1180 sample. In contrast, higher annealing temperatures for the QP1280 sample bring about a lower fraction of austenite at the final microstructure and consequently a reduced microstructural uniformity, and there also exists a greater hardness difference between martensite/austenite islands and ferrite; therefore, a lower fracture toughness is obtained compared to the QP1180 sample. On the whole, the QP1180 sample exhibits the highest fracture toughness across different ligament lengths, primarily due to its uniform microstructure and more remarkable transformation-induced plasticity effect. Finite element simulation further verifies the strain distribution characteristics during deformation. This study provides valuable insights into the fracture toughness and fracture mechanisms of low-density δ-QP steels; it is of significant importance for their practical applications.</div></div>","PeriodicalId":54332,"journal":{"name":"Journal of Materials Research and Technology-Jmr&t","volume":"35 ","pages":"Pages 1170-1177"},"PeriodicalIF":6.2,"publicationDate":"2025-01-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143103941","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Effect of dual-scale precipitates on the deformation behavior of AZ41 magnesium alloy via wire-arc directed energy deposition
IF 6.2 2区 材料科学
Journal of Materials Research and Technology-Jmr&t Pub Date : 2025-01-15 DOI: 10.1016/j.jmrt.2025.01.113
Yuhang Du , Pubo Li , Hao Ning , Tianle Zou , Yongqiang Zhang , Bintao Wu
{"title":"Effect of dual-scale precipitates on the deformation behavior of AZ41 magnesium alloy via wire-arc directed energy deposition","authors":"Yuhang Du ,&nbsp;Pubo Li ,&nbsp;Hao Ning ,&nbsp;Tianle Zou ,&nbsp;Yongqiang Zhang ,&nbsp;Bintao Wu","doi":"10.1016/j.jmrt.2025.01.113","DOIUrl":"10.1016/j.jmrt.2025.01.113","url":null,"abstract":"<div><div>With the need for energy saving and emission reduction, the process of wire arc directed energy deposition (WADED) of large-scale, high-precision Mg alloy parts is becoming more widely recognized. However, the poor deformation ability remains a significant challenge that limits its wide application. In this work, the solidification rate and supercooling degree of Mg alloy during WADED process were increased by controlling the interlayer cooling time, and the dispersed micrometer and nanometer dual-scale Al<sub>8</sub>Mn<sub>5</sub> phases were successfully precipitated. The formation mechanism of dual-scale Al<sub>8</sub>Mn<sub>5</sub>, microstructural evolution, and their effect on the deformation behavior were comprehensively investigated. The mechanical properties were essentially the same in the build direction and the travel direction, with an average ultimate tensile strength of 236.9 MPa and an elongation of 30.52%. The distribution of double-scale Al<sub>8</sub>Mn<sub>5</sub> impedes the dislocation movement, stimulates the opening of non-basal slip systems, and promotes slip-twinning interactions during plastic deformation. This study offers insights into the design and enhancement of high-performance Mg alloy.</div></div>","PeriodicalId":54332,"journal":{"name":"Journal of Materials Research and Technology-Jmr&t","volume":"35 ","pages":"Pages 1226-1238"},"PeriodicalIF":6.2,"publicationDate":"2025-01-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143103942","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Influence of tundish flux on reoxidation behavior of Al-killed Ti-containing stainless steel
IF 6.2 2区 材料科学
Journal of Materials Research and Technology-Jmr&t Pub Date : 2025-01-15 DOI: 10.1016/j.jmrt.2025.01.110
Yeongjin Jun , Yongsug Chung , Sungjin Park , Suchang Kang , Min-Kyu Paek , Joo Hyun Park
{"title":"Influence of tundish flux on reoxidation behavior of Al-killed Ti-containing stainless steel","authors":"Yeongjin Jun ,&nbsp;Yongsug Chung ,&nbsp;Sungjin Park ,&nbsp;Suchang Kang ,&nbsp;Min-Kyu Paek ,&nbsp;Joo Hyun Park","doi":"10.1016/j.jmrt.2025.01.110","DOIUrl":"10.1016/j.jmrt.2025.01.110","url":null,"abstract":"<div><div>The cleanliness of Ti-containing ferritic stainless steel (Ti-FSS) has been improved via vacuum-oxygen-decarburization (VOD) and ladle treatment (LT) processes. However, the reoxidation phenomena inevitably occur during melt transfer from ladle to continuous casting tundish, resulting in a loss of titanium yield in conjunction with the formation of reoxidative inclusions. Hence, the present work aims to systematically investigate the combinational effect of different tundish fluxes on the reoxidation behavior of Al-killed Ti-FSS melt. Rice husk ash (RHA) and MgO (M) insulation powders, and calcium aluminate, CaO–Al<sub>2</sub>O<sub>3</sub> (CA) based flux were used for the experiments. When the molten steel was covered by M + CA fluxes, the average size of inclusions decreased. On the other hand, when the RHA + CA fluxes were added, the average size of inclusion decreased, whereas total number of inclusions significantly increased due to a reoxidation reaction by SiO<sub>2</sub> in RHA. When the M + RHA + CA combinative fluxes were added, the size of inclusion decreased, and the number of inclusions exhibited a value between the M + CA and RHA + CA conditions. Consequently, a decrease in total oxygen content in Ti-FSS was most effective in the M + CA flux combination.</div></div>","PeriodicalId":54332,"journal":{"name":"Journal of Materials Research and Technology-Jmr&t","volume":"35 ","pages":"Pages 1250-1264"},"PeriodicalIF":6.2,"publicationDate":"2025-01-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143170945","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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