Metals and Materials International最新文献_第9页

Investigation of the Role of Non-octahedral Slip Planes in Tensile Deformation Behaviour of Naturally Aged Aluminium 6061 Alloy 非八面体滑移面在6061铝合金自然时效拉伸变形行为中的作用研究

IF 4 3区材料科学

Metals and Materials International Pub Date : 2025-01-09 DOI: 10.1007/s12540-024-01873-9

Soumyadeep Sen, Abhishek Ghosh, Arkajit Ghosh, Gyan Shankar, A. F. Abd El-Rehim, Manojit Ghosh

{"title":"Investigation of the Role of Non-octahedral Slip Planes in Tensile Deformation Behaviour of Naturally Aged Aluminium 6061 Alloy","authors":"Soumyadeep Sen, Abhishek Ghosh, Arkajit Ghosh, Gyan Shankar, A. F. Abd El-Rehim, Manojit Ghosh","doi":"10.1007/s12540-024-01873-9","DOIUrl":"10.1007/s12540-024-01873-9","url":null,"abstract":"<div><p>Aluminium alloys suffer from a serious backlash of low formability, hindering their implementation in the automobile sector, where demand has been skyrocketing for decades. However, warm forming techniques have been reported to bear the ability to curb this problem using a forming temperature below the recrystallization point, owing to the direct contribution of the activated non-octahedral slip systems. This calls for an investigation on the onset of secondary slip systems along with an estimation of microstructural characterization and analysis of crystallographic texture since both are expected to have a staggering influence on the mechanical properties at elevated temperatures. Hence, the present investigation deals with thorough microstructural analysis derived from the Electron Back Scattered Diffraction (EBSD) maps and analysis of crystallographic texture through Orientation Distribution Function maps of EN AW 6061 samples deformed through tension both at room and elevated temperature (250 °C). Furthermore, Visco Plastic Self Consistent (VPSC) modelling along with the Finite element (FE) method has also been incorporated with an aim to verify the crystallographic texture and deformation behaviour, respectively. These extensive characterization methodologies provided compelling evidences of the formation of deformation substructures at elevated tempaerature along with distinct represtation of work hardening behaviour of the material. The texture analysis further elaborated on the influence of high temperature on the reduction of unidirectional defects at high temperature, allowing it to regain its symmetry.</p><h3>Graphical Abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":703,"journal":{"name":"Metals and Materials International","volume":"31 7","pages":"1996 - 2012"},"PeriodicalIF":4.0,"publicationDate":"2025-01-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145163186","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 Elementary Unit Configurations on the Mechanical Performance of Periodic Lattice Structures to Architect Porous Scaffolds by FEM-Driven Additive Manufacturing 基于有限元驱动的增材制造技术研究周期点阵结构对多孔支架力学性能的影响

IF 4 3区材料科学

Metals and Materials International Pub Date : 2025-01-09 DOI: 10.1007/s12540-024-01874-8

A. V. Kapustin, M. M. Abramova, N. Yu Anisimova, M. V. Kiselevskiy, N. A. Enikeev

{"title":"Effect of Elementary Unit Configurations on the Mechanical Performance of Periodic Lattice Structures to Architect Porous Scaffolds by FEM-Driven Additive Manufacturing","authors":"A. V. Kapustin, M. M. Abramova, N. Yu Anisimova, M. V. Kiselevskiy, N. A. Enikeev","doi":"10.1007/s12540-024-01874-8","DOIUrl":"10.1007/s12540-024-01874-8","url":null,"abstract":"<div><p>We report on the numerical calculation of mechanical parameters of porous metallic specimens produced of biocompatible Ti alloy by laser powder bed fusion. The porous structures have been composed based on different models as variously designed triply periodic minimized surfaces and strut-based constructions. We have elucidated the effect of the pore size and unit cell geometry on the strength and elastic properties of the lattice structures by finite element simulations of full-scale models of specimens for compression testing. We show how variation in pore size can influence mechanical parameters of Ti porous specimens within a single design as well as how these parameters might depend on the model used. The experimental validation of the numerical results showed a good correlation of trends predicted by simulations showing their ability to virtual designing advanced porous bioactive scaffolds for orthopedic applications. The issues related to improvement of the combination of implant’s desired properties are discussed.</p><h3>Graphical Abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":703,"journal":{"name":"Metals and Materials International","volume":"31 8","pages":"2417 - 2431"},"PeriodicalIF":4.0,"publicationDate":"2025-01-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145163928","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

Refinement of β Grains and Dynamic Recrystallization of Ti–3Al–5Mo–4Cr–2Zr–1Fe Alloy during Different Passes Hot Deformation in α+β Phase Region Ti-3Al-5Mo-4Cr-2Zr-1Fe合金在α+β相区不同道次热变形过程中β晶粒细化和动态再结晶

IF 4 3区材料科学

Metals and Materials International Pub Date : 2025-01-09 DOI: 10.1007/s12540-024-01876-6

Bohan Zhang, Yang Liang, Wenzhe Zhang, Xinyu Xu, Feng Li, Hui Chang

{"title":"Refinement of β Grains and Dynamic Recrystallization of Ti–3Al–5Mo–4Cr–2Zr–1Fe Alloy during Different Passes Hot Deformation in α+β Phase Region","authors":"Bohan Zhang, Yang Liang, Wenzhe Zhang, Xinyu Xu, Feng Li, Hui Chang","doi":"10.1007/s12540-024-01876-6","DOIUrl":"10.1007/s12540-024-01876-6","url":null,"abstract":"<div><p>This study systematically investigates the microstructural evolution and flow softening behavior of the near-β alloy Ti–3Al–5Mo–4Cr–2Zr–1Fe under strain rate of 0.01 s⁻<sup>1</sup> in the α+β phase region, during both single-pass and multi-pass deformation. The results show that an increase in temperature led to a reduction in flow stress, fragmentation of the α phase, and dynamic phase transformation from α to β during single-pass compression. During multi-pass hot compression, as the strain increased, a substantial amount of the α phase underwent spheroidization. The β phase was elongated in the direction orthogonal to the compression axis, accompanied by a decrease in average grain size. The orientation of β grains changed from a random distribution to alignment along the <111> and <001> directions parallel to the compression axis. With an increasing number of passes, the size of β grains was refined from 30.35 μm after single-pass deformation to 18.62 μm after 3-pass. The size of the equiaxed α phase increased significantly, and the geometrically necessary dislocation density in the deformed microstructure correspondingly increased. Dislocations progressively accumulated at grain and subgrain boundaries, and the localized internal stresses acted as a driving force for nucleation, promoting dynamic recrystallization and thereby enhancing the degree of recrystallization. The main softening mechanism during single-pass hot compression was continuous dynamic recrystallization (CDRX), while both CDRX and discontinuous dynamic recrystallization coexisted during three-pass compression. The intensities of the deformation textures {001} and {111} decreased with the number of passes, showing a negative correlation with the degree of recrystallization.</p><h3>Graphical Abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":703,"journal":{"name":"Metals and Materials International","volume":"31 8","pages":"2315 - 2331"},"PeriodicalIF":4.0,"publicationDate":"2025-01-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145163929","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

Oxidation Behavior of the AlCoCrFeNiCu0.5 High-Entropy Alloy at 800 °C and 900 °C AlCoCrFeNiCu0.5高熵合金在800℃和900℃下的氧化行为

IF 4 3区材料科学

Metals and Materials International Pub Date : 2025-01-09 DOI: 10.1007/s12540-024-01872-w

Xu Chen, Qihan Li, Ye Liu, Lin Zhang, Shuang He, Oleg I. Gorbatov, Xuanhui Qu

{"title":"Oxidation Behavior of the AlCoCrFeNiCu0.5 High-Entropy Alloy at 800 °C and 900 °C","authors":"Xu Chen, Qihan Li, Ye Liu, Lin Zhang, Shuang He, Oleg I. Gorbatov, Xuanhui Qu","doi":"10.1007/s12540-024-01872-w","DOIUrl":"10.1007/s12540-024-01872-w","url":null,"abstract":"<div><p>The oxidation behavior of AlCoCrFeNiCu<sub>0.5</sub> high-entropy alloy (HEA) in air at both 800 °C and 900 °C has been analyzed and corresponding microstructural evolution after oxidation has also been studied. The experimental studies revealed that the as-cast AlCoCrFeNiCu<sub>0.5</sub> alloy is mainly composed of BCC and FCC phases, moreover, there is a spinodal structure with the constituent phases being NiAl-B2 and FeCr-BCC. After annealing at 900 °C for 6 h, the spinodal structure disappeared, but there was σ phase at grain boundary. Oxidation caused significant changes in the matrix of the alloy. The primary phases of the oxidized matrix are the NiAl-B2 phase and FeCoCr-FCC1 phase. A substantial amount of Al was consumed in matrix to form Al<sub>2</sub>O<sub>3</sub> on the surface, resulting in the formation of Al-depleted layer. The longer the oxidation time, the thicker the Al-depleted layer, and a concentrated distribution of Cu-rich FCC2 phase was observed in this region. The isothermal oxidation kinetics of the alloy at both 800 °C and 900 °C followed the parabolic law. The <i>k</i><sub>p</sub> values for oxidation at 800 °C and 900 °C were 7.367 × 10<sup>− 14</sup> (g<sup>2</sup>·cm<sup>− 4</sup>·s<sup>− 1</sup>) and 2.105 × 10<sup>− 13</sup> (g<sup>2</sup>·cm<sup>− 4</sup>·s<sup>− 1</sup>) respectively, indicating that the <i>k</i><sub>p</sub> value at 900 °C was 2.86 times that at 800 °C. A continuous Al<sub>2</sub>O<sub>3</sub> layer on the surface being the key to its superior oxidation resistance of the HEA at both temperatures.</p><h3>Graphical Abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":703,"journal":{"name":"Metals and Materials International","volume":"31 7","pages":"1982 - 1995"},"PeriodicalIF":4.0,"publicationDate":"2025-01-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145163189","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

Microstructural, Mechanical and Residual Stress Behaviour of Dissimilar Induction-Assisted Friction Stir Welded Inconel 718-AISI SS321 Joints 不同感应辅助搅拌摩擦焊接Inconel 718-AISI SS321接头的显微组织、力学和残余应力行为

IF 4 3区材料科学

Metals and Materials International Pub Date : 2025-01-07 DOI: 10.1007/s12540-024-01863-x

Rituraj Bhattacharjee, Prabhat Chand Yadav, Tanmoy Medhi, Pankaj Biswas

{"title":"Microstructural, Mechanical and Residual Stress Behaviour of Dissimilar Induction-Assisted Friction Stir Welded Inconel 718-AISI SS321 Joints","authors":"Rituraj Bhattacharjee, Prabhat Chand Yadav, Tanmoy Medhi, Pankaj Biswas","doi":"10.1007/s12540-024-01863-x","DOIUrl":"10.1007/s12540-024-01863-x","url":null,"abstract":"<div><p>This study analyzes the microstructural evolution and mechanical properties of dissimilar induction-assisted friction stir welded (IAFSWed) Inconel 718 (IN718) and AISI stainless steel 321 (SS321) joints. Electron backscatter diffraction (EBSD) was conducted on specimens welded at 300 rpm 40 mm/min (300/40) and 450 rpm 70 mm/min (450/70). The grain boundary analysis showed that the 450/70 specimen had a higher fraction of high-angle grain boundaries (HAGBs) at 86.9%, with low-angle grain boundaries (LAGBs) at 13.1%. The lower Kernel average misorientation (KAM) value (0.945 ± 0.05) indicated reduced strain and residual stress, improving mechanical properties. In contrast, a “bi-model” grain structure with larger grains was seen in the 300/40 specimen. Microhardness tests revealed a 13.5% improvement in Inconel compared to steel for the 450/70 condition, leading to a tensile strength of 614.36 MPa, which is 88.26% of the SS321 base material. Fractographic analysis showed a predominantly ductile fracture mode, with fine (Ti, Nb)C and (Nb)C particles enhancing mechanical properties. Tool rotation speed affected stress distribution, with higher speeds producing lower residual stresses due to increased heat generation. X-ray diffraction (XRD) analysis revealed that longitudinal and transverse residual stresses were higher in the 300/40 specimen than in the 450/70 specimen.</p><h3>Graphical Abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":703,"journal":{"name":"Metals and Materials International","volume":"31 7","pages":"2082 - 2103"},"PeriodicalIF":4.0,"publicationDate":"2025-01-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145162935","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

Investigation of the Peculiar Stress Flow Behavior of a Novel TiAl Alloy under High Strain Rate Conditions 一种新型TiAl合金在高应变率条件下的特殊应力流动行为研究

IF 4 3区材料科学

Metals and Materials International Pub Date : 2025-01-07 DOI: 10.1007/s12540-024-01859-7

Ji-Sung Park, Min-Sik Kim, Jong-Woo Won, Seong-Woong Kim, Seong-Hoon Yi

{"title":"Investigation of the Peculiar Stress Flow Behavior of a Novel TiAl Alloy under High Strain Rate Conditions","authors":"Ji-Sung Park, Min-Sik Kim, Jong-Woo Won, Seong-Woong Kim, Seong-Hoon Yi","doi":"10.1007/s12540-024-01859-7","DOIUrl":"10.1007/s12540-024-01859-7","url":null,"abstract":"<div><p>In this study, we investigated the peculiar flow behavior during the isothermal deformation of a novel TiAl composition at 1200 °C and 1300 °C under high strain rate conditions using Gleeble<sup>®</sup> Thermal-Mechanical Simulators. The initial yield-point phenomenon, resembling strain hardening at both temperatures, is attributed to the remnant lamellar microstructure. Secondary hardening at 1200 ℃ is caused by dislocation accumulation at the grain boundaries of the α phase, without the formation of dynamically recrystallized γ lamellar grains. In-grain misorientation axes analysis revealed a shift in the dominant deformation slip mode of the α phase from the prismatic slip system to a combined prismatic and basal slip system. The disappearance of γ lamellar laths after the first strain hardening and during secondary hardening is likely initiated by a deformation-induced γ→α phase transition within the γ phase matrix by the extended dislocation with intrinsic stacking faults and occurred simultaneously in the whole γ lamellae.</p><h3>Graphical Abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":703,"journal":{"name":"Metals and Materials International","volume":"31 7","pages":"1920 - 1931"},"PeriodicalIF":4.0,"publicationDate":"2025-01-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145163112","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

Nanoindentation Study on Depth-Dependent Hardness and Embrittlement of He Ion-Irradiated Fe–9Cr Alloy He离子辐照Fe-9Cr合金硬度和脆度随深度变化的纳米压痕研究

IF 3.3 3区材料科学

Metals and Materials International Pub Date : 2025-01-06 DOI: 10.1007/s12540-024-01869-5

Hoe-Yeon Jeong, Seunghyun Lee, Sangbeen Lee, Dae-sik Chang, Jung Gu Lee, Eun-chae Jeon

{"title":"Nanoindentation Study on Depth-Dependent Hardness and Embrittlement of He Ion-Irradiated Fe–9Cr Alloy","authors":"Hoe-Yeon Jeong, Seunghyun Lee, Sangbeen Lee, Dae-sik Chang, Jung Gu Lee, Eun-chae Jeon","doi":"10.1007/s12540-024-01869-5","DOIUrl":"10.1007/s12540-024-01869-5","url":null,"abstract":"<div><p>This study investigates the effects of neutron irradiation and high-temperature environments on the embrittlement and ductility of ARAA steel, a structural material for fusion reactors, using nanoindentation techniques. Neutron irradiation in fusion environments causes material brittleness, increasing the risk of cracks and compromising reactor safety. Conversely, high temperatures enhance ductility, potentially offsetting embrittlement. This research employs nanoindentation techniques to analyze embrittlement and softening, using He ion irradiation under temperature controls to simulate neutron effects, enabling faster damage assessment and providing insights into material behavior. The results demonstrate that irradiation significantly increases hardness, particularly at shallow depths, while higher temperatures generally reduce hardness across the full depth. Under combined irradiation dose and temperature conditions, He ion irradiation primarily caused embrittlement, but the softening effect from higher temperatures reduced damage depth. Embrittlement was deepest at room temperature and decreased with rising irradiation temperature, with the predicted embrittlement depth limited to 3.0 μm under combined conditions.</p><h3>Graphical Abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":703,"journal":{"name":"Metals and Materials International","volume":"31 6","pages":"1557 - 1568"},"PeriodicalIF":3.3,"publicationDate":"2025-01-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144108538","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

Understanding Anisotropy and Forming Limit in 6C16 Aluminum Alloy: Insights from Evolutionary R-Values with Various Calculation Methods 6C16铝合金各向异性及成形极限的认识：基于演化r值的不同计算方法

IF 4 3区材料科学

Metals and Materials International Pub Date : 2025-01-04 DOI: 10.1007/s12540-024-01870-y

Zhenkai Mu, Tianyu Hou, Longfei He, Jiale Liu, Shibo Ma, Huajun Yan, Xuerui Dai

{"title":"Understanding Anisotropy and Forming Limit in 6C16 Aluminum Alloy: Insights from Evolutionary R-Values with Various Calculation Methods","authors":"Zhenkai Mu, Tianyu Hou, Longfei He, Jiale Liu, Shibo Ma, Huajun Yan, Xuerui Dai","doi":"10.1007/s12540-024-01870-y","DOIUrl":"10.1007/s12540-024-01870-y","url":null,"abstract":"<div><p>The forming limit curve (FLC) is crucial for evaluating the local forming ability of sheet metal stamping. Considering the evolution of plastic deformation is a significant way to enhance the prediction of the theoretical forming limit. Based on the series anisotropic and forming limit characterization tests for 6C16 aluminum alloy sheet, the influence of calculation methods for evolutionary <i>R</i>-values on the FLC prediction was revealed in this paper. By comparing the calculation processes of plastic strain curves using three evolutionary <i>R</i>-value calculation methods, their calculation principles and limitations were analyzed in detail. In terms of the fitting error for the plastic strain curve, the segmentation linear fitting method had the highest error at 2.62E−3, while the third-order polynomial fitting method had the lowest error at 6.71E−7. Based on the Marciniak–Kuczinsky (M–K) model, the FLC was predicted by different evolutionary <i>R</i>-value calculation methods combined with Hill48, Barlat89, and YLD2000 yield models. The results indicate that the accuracy of FLC prediction is closely related to the fitting accuracy of the <i>R</i>-value solving method on the plastic strain curve. When the third-order polynomial method was used, the prediction accuracy of the FLC based on the YLD2000 yield model could reach 97.82%, which was an increase of 2.76% compared to the other methods. Therefore, optimizing the method of solving the <i>R</i>-value can significantly enhance the prediction accuracy of the FLC. The research findings offer a reference for the selection of appropriate yield models and anisotropic evolution characterization methods for the M–K model.</p><h3>Graphical Abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":703,"journal":{"name":"Metals and Materials International","volume":"31 7","pages":"1962 - 1981"},"PeriodicalIF":4.0,"publicationDate":"2025-01-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145161612","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

Numerical Modeling of Concentration Behaviors of Carbon, Oxygen, and Aluminum During Ruhrstahl–Heraeus Process Ruhrstahl-Heraeus过程中碳、氧和铝浓度行为的数值模拟

IF 4 3区材料科学

Metals and Materials International Pub Date : 2025-01-03 DOI: 10.1007/s12540-024-01868-6

Tae Ung Youn, Saeum Bae, Kyung Woo Yi

{"title":"Numerical Modeling of Concentration Behaviors of Carbon, Oxygen, and Aluminum During Ruhrstahl–Heraeus Process","authors":"Tae Ung Youn, Saeum Bae, Kyung Woo Yi","doi":"10.1007/s12540-024-01868-6","DOIUrl":"10.1007/s12540-024-01868-6","url":null,"abstract":"<div><p>Ultralow-carbon steel production is crucial for several applications in the steelmaking industry. Ruhrstahl–Heraeus (RH) degassing is a prominent method for decarburization, achieved by blowing inert (Ar) gas into melt, inducing circulation between ladle and vacuum vessel. Although empirical models provide some insights, the complexity of RH operations necessitates advanced numerical modeling for various parameters influencing melt flow circulation and chemical reactions. This study proposes a comprehensive numerical model to simulate fluid flow and concentration behaviors with various operating parameters during RH operations. The numerical model incorporates melt circulation, plume shape, bubble expansion, and buoyancy forces to predict changes in carbon, oxygen, and aluminum concentrations throughout the process. Key elements include decarburization and deoxidation reactions and operating parameter effects including oxygen blowing (OB) and carbon addition in RH. The calculation model follows a procedure that significantly reduces calculation time while performing calculations including various parameters. Verification with plant data shows good agreement, demonstrating capabilities of predicting calculations. Accordingly, a difference of 0.57%p is recorded for carbon concentration. For calculations including OB and carbon addition, differences of 0.79%p and 0.35%p are recorded, respectively. The findings of this study provide a valuable reference for future investigations and process optimization in RH steelmaking.</p><h3>Graphical Abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":703,"journal":{"name":"Metals and Materials International","volume":"31 7","pages":"2136 - 2159"},"PeriodicalIF":4.0,"publicationDate":"2025-01-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145161524","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

Additive Manufacturing of Pure Tungsten and Tungsten Heavy Alloys-State-of-the-Art Processes 纯钨和重钨合金的增材制造——最新工艺

IF 4 3区材料科学

Metals and Materials International Pub Date : 2025-01-03 DOI: 10.1007/s12540-024-01861-z

Sasidhar Mudda, A. Raja Annamalai, A. Muthuchamy

{"title":"Additive Manufacturing of Pure Tungsten and Tungsten Heavy Alloys-State-of-the-Art Processes","authors":"Sasidhar Mudda, A. Raja Annamalai, A. Muthuchamy","doi":"10.1007/s12540-024-01861-z","DOIUrl":"10.1007/s12540-024-01861-z","url":null,"abstract":"<div><p>The process of printing components layer by layer is additive manufacturing, which has brought about a paradigm shift in the design, production, and distribution of goods to consumers. Metal additive manufacturing has executed an industry-changing manufacturing production strategy. In the current review article, the printability of tungsten and tungsten alloys are summarized by examining several crucial parameters, viz, scanning strategy, volumetric energy density, and particle morphology. The high melting point of tungsten renders its melting through conventional casting extremely challenging. Traditional manufacturing methods have been employed for quite some time to address these challenges. In this article, only additive manufacturing techniques are surveyed. Powder bed fusion, directed energy deposition, and binder jetting are revolutionary production methodologies employed for most of the research on the 3D printing of tungsten and its alloys. Only a few articles regarding the printability of 3D parts produced from tungsten-heavy alloys are available. This review probes deeper into the impact of process conditions on the balling phenomenon, the attained relative density, and the propensity for cracking in pure tungsten and its alloys.</p><h3>Graphical abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":703,"journal":{"name":"Metals and Materials International","volume":"31 7","pages":"1859 - 1890"},"PeriodicalIF":4.0,"publicationDate":"2025-01-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145161525","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