Isij International最新文献

筛选
英文 中文
Phase Diagrams of “FeO”–SiO<sub>2</sub>–CaO–V<sub>2</sub>O<sub>3</sub>–TiO<sub>2</sub> System and Phase Transformation of Vanadium-enriched Phases “FeO”-SiO&lt;sub&gt;2&lt;/sub&gt; -CaO-V&lt;sub&gt;2&lt;/sub&gt;O&lt;sub&gt;3&lt;/sub&gt; -TiO&lt;sub&gt;2&lt;/sub&gt;体系与富钒相相变的相图
4区 材料科学
Isij International Pub Date : 2025-10-09 DOI: 10.2355/isijinternational.isijint-2025-086
Guoliang Feng, Jintao Gao, Xi Lan, Lei Guo, Zhancheng Guo
{"title":"Phase Diagrams of “FeO”–SiO&lt;sub&gt;2&lt;/sub&gt;–CaO–V&lt;sub&gt;2&lt;/sub&gt;O&lt;sub&gt;3&lt;/sub&gt;–TiO&lt;sub&gt;2&lt;/sub&gt; System and Phase Transformation of Vanadium-enriched Phases","authors":"Guoliang Feng, Jintao Gao, Xi Lan, Lei Guo, Zhancheng Guo","doi":"10.2355/isijinternational.isijint-2025-086","DOIUrl":"https://doi.org/10.2355/isijinternational.isijint-2025-086","url":null,"abstract":"Achieving phase transformation from spinel to the vanadium-enriched phase with higher chemical activity of vanadium oxide is essential for the efficient extraction of vanadium resources in vanadium slag. However, there is a severe lack of thermodynamic data for the relevant systems, which hampers our understanding for phase relations of vanadium-enriched phases. In this study, the phase equilibria of the \"FeO\"-SiO2-CaO-V2O3-TiO2 system were investigated at 1400 °C and 1200 °C, and the corresponding phase diagrams were constructed. It was found from these phase diagrams that the vanadium-rich phase (V,Ti,Fe)2O3 with a higher chemical activity of vanadium oxide than Fe(V,Ti,Fe)2O4 was identified, but the decrease in temperature was detrimental to the crystallization of (V,Ti,Fe)2O3. On these bases, the phase transformation from Fe(V,Ti,Fe)2O4 to (V,Ti,Fe)2O3 was further investigated at 1400 °C. It was found that the phase transformation occurred in three stages: the Fe(V,Ti,Fe)2O4 stage, the coexistence stage of Fe(V,Ti,Fe)2O4 and (V,Ti,Fe)2O3, and the (V,Ti,Fe)2O3 stage, and the phase transformation from Fe(V,Ti,Fe)2O4 to (V,Ti,Fe)2O3 was fully completed when the w(\"FeO\")/w(SiO2) ratio was lower than 0.8. In this study, the essential thermodynamic data of the relevant system are complemented, while the phase transformation results of vanadium-enriched phases provide theoretical guidance for the efficient extraction of vanadium resources from vanadium slag.","PeriodicalId":14619,"journal":{"name":"Isij International","volume":"65 12","pages":"1850-1859"},"PeriodicalIF":0.0,"publicationDate":"2025-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.jstage.jst.go.jp/article/isijinternational/advpub/0/advpub_ISIJINT-2025-086/_pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147332641","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Crystallization Kinetics of Mold Slag Containing CeO<sub>2</sub> in Isothermal and Non-isothermal Process 等温和非等温过程中含CeO&lt;sub&gt;2&lt;/sub&gt
4区 材料科学
Isij International Pub Date : 2025-05-18 DOI: 10.2355/isijinternational.isijint-2025-024
Zhang Chen, Kang Shao, Xiaobo He, Lijun Wang
{"title":"Crystallization Kinetics of Mold Slag Containing CeO&lt;sub&gt;2&lt;/sub&gt; in Isothermal and Non-isothermal Process","authors":"Zhang Chen, Kang Shao, Xiaobo He, Lijun Wang","doi":"10.2355/isijinternational.isijint-2025-024","DOIUrl":"https://doi.org/10.2355/isijinternational.isijint-2025-024","url":null,"abstract":"In rare-earth steel continuous casting, researchers examined the role of cerium oxide (CeO2) in mold slag crystallization. Using single hot thermocouple technique (SHTT) and Raman spectroscopy, they investigated the CaO-SiO2-Al2O3-Na2O-CaF2-(CeO2) slag system. The CeO2 was found to reduce structural polymerization, increase substance migration rates, and promote slag crystallization. Applying Johnson-Mehl-Avrami (JMA) and modified JMA models revealed distinct crystallization behaviors. In isothermal conditions, the crystal growth mechanism transitioned from one-dimensional to three-dimensional as temperature increased. Non-isothermal analysis consistently showed three-dimensional crystal growth. The models quantified how CeO2 content influences crystallization kinetics, demonstrating altered growth patterns. As CeO2 increased to 3%, the isothermal crystallization activation energy rose from 153.59 to 302.58 kJ/mol, indicating enhanced crystallization drive. Under non-isothermal conditions, with cooling rates of 1 to 20 °C/s, the apparent activation energy ranged from -288.44 to -941.97 kJ/mol. The negative values suggest that accelerated cooling and increased CeO2 concentration reduce crystallization process inhibition.","PeriodicalId":14619,"journal":{"name":"Isij International","volume":"65 8","pages":"1145-1152"},"PeriodicalIF":0.0,"publicationDate":"2025-05-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.jstage.jst.go.jp/article/isijinternational/advpub/0/advpub_ISIJINT-2025-024/_pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147333563","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Resourceful Utilization of Ironmaking Waste: Synthesis of Ti<sub>5</sub>Si<sub>3</sub> Alloy from Titanium-Bearing Blast Furnace Slag 炼铁废弃物资源化利用:以含钛高炉渣为原料合成Ti&lt;sub&gt;5&lt;/sub&gt;Si&lt;sub&gt;3&lt;/sub&gt
4区 材料科学
Isij International Pub Date : 2024-12-10 DOI: 10.2355/isijinternational.isijint-2024-282
Zhongya Pang, Shun Chen, Zhenqiang Jiang, Chenyang Han, Xing Yu, Kai Zheng, Chaoyi Chen, Guangshi Li, Qian Xu, Xingli Zou, Xionggang Lu
{"title":"Resourceful Utilization of Ironmaking Waste: Synthesis of Ti&lt;sub&gt;5&lt;/sub&gt;Si&lt;sub&gt;3&lt;/sub&gt; Alloy from Titanium-Bearing Blast Furnace Slag","authors":"Zhongya Pang, Shun Chen, Zhenqiang Jiang, Chenyang Han, Xing Yu, Kai Zheng, Chaoyi Chen, Guangshi Li, Qian Xu, Xingli Zou, Xionggang Lu","doi":"10.2355/isijinternational.isijint-2024-282","DOIUrl":"https://doi.org/10.2355/isijinternational.isijint-2024-282","url":null,"abstract":"Titanium-bearing blast furnace slag (TBFS), a byproduct of ironmaking processes, has long been discarded as waste, resulting in the squandering of valuable resources such as titanium. The recovery and effective utilization of TBFS hold immense significance and importance. This study reports a direct electrolysis method for synthesizing Ti5Si3 alloy from a TBFS/SiO2 mixture in molten CaCl2 at 950°C. A comprehensive investigation was conducted into the phase and morphological evolution during the electrolysis process, along with an analysis of the migration behavior of impurities such as Ca and Al present in TBFS. The synthesized Ti5Si3 alloy powder was systematically characterized and analyzed using scanning electron microscopy, transmission electron microscopy, and other techniques. The results reveal that the electrolysis process encompasses electrochemical deoxidation, in-situ alloying, and self-purification. Furthermore, this study achieved further purification of the Ti5Si3 alloy through vacuum laser rapid melting, effectively volatilizing and removing the residual impurity elements, resulting in an increase in the purity of Ti5Si3 alloy from 96.8% to 98.6%. The resultant Ti5Si3 alloy exhibits excellent corrosion resistance in phosphate buffer solution. In summary, this work provides a crucial technical paradigm and scientific theoretical foundation for the resourceful and value-added utilization of ironmaking solid waste, specifically TBFS.","PeriodicalId":14619,"journal":{"name":"Isij International","volume":"65 3","pages":"460-469"},"PeriodicalIF":0.0,"publicationDate":"2024-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.jstage.jst.go.jp/article/isijinternational/65/3/65_ISIJINT-2024-282/_pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147334234","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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: 3
Ductility loss of a metastable austenitic stainless steel and its TIG weldment due to hydrogen embrittlement at low temperatures considering the effect of pre-strain at 4K 考虑到 4K 时预应变的影响,一种可变质奥氏体不锈钢及其氩弧焊焊接件在低温下因氢脆造成的延展性损失
IF 1.8 4区 材料科学
Isij International Pub Date : 2024-09-18 DOI: 10.2355/isijinternational.isijint-2024-182
Rafael Magalhaes De Melo Freire, Shohei Uranaka, Eita Tochigi, Mitsuo Kimura, Tomoya Kawabata
{"title":"Ductility loss of a metastable austenitic stainless steel and its TIG weldment due to hydrogen embrittlement at low temperatures considering the effect of pre-strain at 4K","authors":"Rafael Magalhaes De Melo Freire, Shohei Uranaka, Eita Tochigi, Mitsuo Kimura, Tomoya Kawabata","doi":"10.2355/isijinternational.isijint-2024-182","DOIUrl":"https://doi.org/10.2355/isijinternational.isijint-2024-182","url":null,"abstract":"</p><p>The amount of martensite in austenitic stainless steels produced during plastic deformation at low temperatures is related to the reduction in hydrogen embrittlement resistance. A pre-strain at 4 K was employed in this work to produce strain-induced martensite (SIM) in the microstructure of SUS316L and its weldment to verify the changes in hydrogen embrittlement susceptibility through slow strain tensile (SSRT) tests in a high-pressure hydrogen environment. As the base metal specimens, the weld metal specimens, manufactured by gas tungsten arc welding (GTAW or TIG) were pre-strained at different levels (5%, 10%, and 15%) for comparison with the non-pre-strained condition. Analysis of the most degraded samples tested from -150 °C to 0 °C is conducted through fracture surface observations, lateral crack length measurement, and crack densities. It was possible to indicate that the pre-strain effect induced earlier crack nucleation in comparison to the situation observed in the non-pre-strained material. Moreover, the pre-existing martensite produced by the pre-strain at 4 K is responsible for earlier crack nucleation, leading to a loss in the hydrogen embrittlement resistance for the SSRT pre-strained base metal specimens.</p>\u0000<p></p>","PeriodicalId":14619,"journal":{"name":"Isij International","volume":"6 1","pages":""},"PeriodicalIF":1.8,"publicationDate":"2024-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142252085","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Iterative Convergence for Solving the Exit Plastic Zone and Friction Coefficient Model of Ultra-thin Strip Rolling Force 超薄带材轧制力出口塑性区和摩擦系数模型的迭代收敛求解
IF 1.8 4区 材料科学
Isij International Pub Date : 2024-09-18 DOI: 10.2355/isijinternational.isijint-2024-214
Jie Zhang, Tao Wang, Zhenhua Wang, Xiao Liu
{"title":"Iterative Convergence for Solving the Exit Plastic Zone and Friction Coefficient Model of Ultra-thin Strip Rolling Force","authors":"Jie Zhang, Tao Wang, Zhenhua Wang, Xiao Liu","doi":"10.2355/isijinternational.isijint-2024-214","DOIUrl":"https://doi.org/10.2355/isijinternational.isijint-2024-214","url":null,"abstract":"</p><p>For the analytical model of rolling force of ultra-thin strip, the iterative conditions of the exit plastic zone are improved to solve the convergence problem of the Fleck model in small reduction rolling. The nonlinear law of friction coefficient in multi-pass rolling is analyzed, and the friction coefficient database for sample data is established through the friction coefficient calculation model, which is used GWO-KELM neural network training friction coefficient prediction model, the Fleck rolling force prediction model based on the modified friction coefficient is established ultimately. A comparative analysis of prediction errors is conducted on three different specifications of strip steel using actual production data from a multifunctional 280 mm 20-high mill. The results show that the best performing MSE, RMSE, MAE, MAPE and R2, with values of 170.48, 13.06 kN, 9.01 kN, 3.30%, and 0.989, respectively. The accuracy of the modified rolling force prediction model is significantly improved, and the data scale of friction coefficient database can be continuously expanded, so the accuracy of the rolling force prediction model can be continuously improved.</p>\u0000<p></p>","PeriodicalId":14619,"journal":{"name":"Isij International","volume":"3 1","pages":""},"PeriodicalIF":1.8,"publicationDate":"2024-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142252086","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Ductile Fracture Prediction During Metal Forming Using an Ellipsoidal Void Model and Some Other Models 使用椭圆形空隙模型和其他一些模型预测金属成型过程中的韧性断裂
IF 1.8 4区 材料科学
Isij International Pub Date : 2024-09-18 DOI: 10.2355/isijinternational.isijint-2024-250
Kazutake Komori
{"title":"Ductile Fracture Prediction During Metal Forming Using an Ellipsoidal Void Model and Some Other Models","authors":"Kazutake Komori","doi":"10.2355/isijinternational.isijint-2024-250","DOIUrl":"https://doi.org/10.2355/isijinternational.isijint-2024-250","url":null,"abstract":"</p><p>This paper reviews studies on the prediction of ductile fracture during metal forming using an ellipsoidal void model and some other models proposed by the author and some relevant studies. Section 2 discusses the research on the theory of voids for predicting ductile fracture during metal forming. Section 3 summarizes the simulation method for predicting ductile fracture during metal forming using the ellipsoidal void model, and Section 4 summarizes the simulation result on the ductile fracture prediction during metal forming using the ellipsoidal void model. Section 5 shows the applicability of the ellipsoidal void model and the simulation result on the ductile fracture prediction during metal forming using some other models.</p>\u0000<p></p>","PeriodicalId":14619,"journal":{"name":"Isij International","volume":"5 1","pages":""},"PeriodicalIF":1.8,"publicationDate":"2024-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142268663","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Atmospheric Corrosion Behavior of Ni-Advanced Weathering Steels in High-Chloride Environment: Effect of Ni on Corrosion Morphology 高氯化物环境中镍高级耐候钢的大气腐蚀性能:镍对腐蚀形态的影响
IF 1.8 4区 材料科学
Isij International Pub Date : 2024-09-17 DOI: 10.2355/isijinternational.isijint-2024-101
Yu Sugawara, Masataka Omoda, Shinji Ootsuka
{"title":"Atmospheric Corrosion Behavior of Ni-Advanced Weathering Steels in High-Chloride Environment: Effect of Ni on Corrosion Morphology","authors":"Yu Sugawara, Masataka Omoda, Shinji Ootsuka","doi":"10.2355/isijinternational.isijint-2024-101","DOIUrl":"https://doi.org/10.2355/isijinternational.isijint-2024-101","url":null,"abstract":"</p><p>It is well known that Ni-advanced weathering steels considerably improve the protectiveness of rust layers and drastically reduce corrosion rate compared with the conventional weathering steels. However, unpainted Ni-advanced weathering steels are not suitable for use in high-chloride environments because of no formation of protective rust layers. To expand the application of Ni-advanced weathering steels, it is imperative to understand in detail their corrosion behavior in high-chloride environments. In this study, the effect of Ni addition on the atmospheric corrosion behavior of carbon steels was explored through a wet-dry cyclic corrosion test and potentiodynamic polarization measurements in a simulated high-chloride environment. In particular, the study focused on corrosion morphology and analyzed the distribution of corrosion depth after the corrosion test. During the corrosion test, the protective rust layers did not seem to form on all the specimens due to the high-chloride condition. Nevertheless, the corrosion rates decreased with increasing Ni addition to steels. Corrosion morphology analysis revealed that the Ni addition suppressed relatively uniform corrosions on the entire surface and the growth of deep hole-like corrosions. Anodic polarization curves showed that the Ni addition suppressed the dissolution of the steel matrix, which led to the atmospheric corrosion properties of 2.5Ni-WS and 5Ni-WS in inhibiting relatively uniform corrosion and the growth of deep hole-like corrosions. The change in the electrochemical properties of the steel matrix due to the Ni addition significantly affects the atmospheric corrosion behavior of carbon steels in high-chloride environments.</p>\u0000<p></p>","PeriodicalId":14619,"journal":{"name":"Isij International","volume":"6 1","pages":""},"PeriodicalIF":1.8,"publicationDate":"2024-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142252089","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Arc-plasma-assisted laser-induced breakdown spectroscopy (AP-LIBS): A Study on Signal Enhancement and Spatiotemporal Distribution 弧等离子体辅助激光诱导击穿光谱(AP-LIBS):信号增强和时空分布研究
IF 1.8 4区 材料科学
Isij International Pub Date : 2024-09-17 DOI: 10.2355/isijinternational.isijint-2024-221
Hitoshi Muneoka, Tsuyohito Ito, Kazuo Terashima
{"title":"Arc-plasma-assisted laser-induced breakdown spectroscopy (AP-LIBS): A Study on Signal Enhancement and Spatiotemporal Distribution","authors":"Hitoshi Muneoka, Tsuyohito Ito, Kazuo Terashima","doi":"10.2355/isijinternational.isijint-2024-221","DOIUrl":"https://doi.org/10.2355/isijinternational.isijint-2024-221","url":null,"abstract":"</p><p>This study investigated the fundamental aspects of signal enhancement in arc-plasma-assisted laser-induced breakdown spectroscopy (AP-LIBS), as a crucial step towards its potential application for enhanced real-time compositional analysis in electric arc furnaces (EAF). By superimposing a sustained arc discharge with nanosecond laser pulses on molten iron, AP-LIBS achieved significant signal enhancement compared with conventional LIBS. Spatiotemporal characterizations revealed that the enhancement was most pronounced in the peripheral plasma region, characterized by larger plasma size and longer lifetime in AP-LIBS setups. The enhancement factor η, defined as the ratio of AP-LIBS signal intensity to the sum of individual arc and laser-induced plasma intensities, exceeds 10 for most emission species. Spatial distribution analyses show increased emission intensities at greater distances from the laser spot in AP-LIBS, in contrast to the decay observed in standard LIBS. Temporal analysis demonstrated extended high-intensity periods for AP-LIBS compared to the rapid decay in conventional LIBS techniques. The spatiotemporal behavior of the enhancement factor varies significantly among the emission species, thereby providing insights into complex plasma dynamics. Elements with low vapor pressure and ionic species generally exhibited higher enhancement, whereas elements with high vapor pressure exhibited limited enhancement, indicating minimal additional evaporation effects for high vapor pressure element. These findings provide valuable insights into plasma generation and maintenance mechanisms in AP-LIBS, suggesting its potential for improved sensitivity in elemental analysis for electric arc furnace applications.</p>\u0000<p></p>","PeriodicalId":14619,"journal":{"name":"Isij International","volume":"25 1","pages":""},"PeriodicalIF":1.8,"publicationDate":"2024-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142252090","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Friction Stir Welding of Thick Steel Plate Using Silicon Nitride Tool 使用氮化硅工具搅拌摩擦焊接厚钢板
IF 1.8 4区 材料科学
Isij International Pub Date : 2024-09-15 DOI: 10.2355/isijinternational.isijint-2024-172
Masakazu Mori, Tatsuya Ban, Hiroki Takeuchi, Yoshiaki Morisada, Hidetoshi Fujii
{"title":"Friction Stir Welding of Thick Steel Plate Using Silicon Nitride Tool","authors":"Masakazu Mori, Tatsuya Ban, Hiroki Takeuchi, Yoshiaki Morisada, Hidetoshi Fujii","doi":"10.2355/isijinternational.isijint-2024-172","DOIUrl":"https://doi.org/10.2355/isijinternational.isijint-2024-172","url":null,"abstract":"</p><p>Friction stir welding (FSW) is expected to be applied as a welding technique of materials with relatively high melting temperature such as steel materials. Silicon nitride is one of the inexpensive and attractive tool materials for FSW of the thick steel plate. Therefore, in this study, the capability of the silicon nitride tool without groove scroll to weld a low carbon steel plate with a thickness of 15 mm was investigated. The suitability of a tool shape was confirmed by FSW of a thick A5052 plate using a SKD61 tool with same shape as the silicon nitride tool. The defect-free welded specimen of the thick steel plate was obtained using the silicon nitride tool under the optimum welding condition. The silicon nitride tool could be used for FSW of the 15 mm thick steel plate until the welding length of 200 mm without breaking the tool. The groove defect area in the stir zone of the thick steel plate was decreased with decreasing of the tool rotation speed and tool tilt angle. Especially, the tool tilt angle was effective to increase the heat input and the material flow velocity. It is considered that the defect-free weld specimen of the thick steel plate was obtained to sufficient material supply to the RS of the stir zone by decreasing tool tilt angle to 1°.</p>\u0000<p></p>\u0000<img alt=\"\" src=\"https://www.jstage.jst.go.jp/pub/isijinternational/64/11/64_ISIJINT-2024-172/figure/64_ISIJINT-2024-172.jpg\"/>\u0000<span style=\"padding-left:5px;\">Fullsize Image</span>","PeriodicalId":14619,"journal":{"name":"Isij International","volume":"54 1","pages":""},"PeriodicalIF":1.8,"publicationDate":"2024-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142252091","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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 the Size of Coal Briquette on Its Internal Structure 煤砖尺寸对其内部结构的影响
IF 1.8 4区 材料科学
Isij International Pub Date : 2024-09-15 DOI: 10.2355/isijinternational.isijint-2024-100
Yuya Ono, Yoshiya Matsukawa, Yohsuke Matsushita, Takahiro Shishido, Shohei Wada, Ryuichi Kobori, Noriyuki Okuyama, Hideyuki Aoki
{"title":"Effect of the Size of Coal Briquette on Its Internal Structure","authors":"Yuya Ono, Yoshiya Matsukawa, Yohsuke Matsushita, Takahiro Shishido, Shohei Wada, Ryuichi Kobori, Noriyuki Okuyama, Hideyuki Aoki","doi":"10.2355/isijinternational.isijint-2024-100","DOIUrl":"https://doi.org/10.2355/isijinternational.isijint-2024-100","url":null,"abstract":"</p><p>This study examines the effect of container size on coal briquette’s internal structure using the Discrete Element Method. It found that when the frictional resistance between particle and wall was large and the inner diameter small, the difference in particle filling ratio between the upper and lower parts of the briquette was significant. Conversely, with a larger inner diameter, this difference nearly disappeared. The distribution of contact force indicated that the frictional force’s inhibiting effect on force transmission lessened with a larger container’s inner diameter. The study also revealed that the height of the container affects the briquette’s internal structure, and these results can be summarized by the container’s height to diameter ratio. Essentially, a larger ratio led to a linear increase in the difference in filling ratio between the upper and lower parts of the briquette.</p>\u0000<p></p>\u0000<img alt=\"\" src=\"https://www.jstage.jst.go.jp/pub/isijinternational/64/11/64_ISIJINT-2024-100/figure/64_ISIJINT-2024-100.jpg\"/>\u0000<span style=\"padding-left:5px;\">Fullsize Image</span>","PeriodicalId":14619,"journal":{"name":"Isij International","volume":"42 1","pages":""},"PeriodicalIF":1.8,"publicationDate":"2024-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142252092","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:604180095
Book学术官方微信
小红书