IF 2.3 4区材料科学

JOM Pub Date : 2025-09-12 DOI: 10.1007/s11837-025-07731-2

Xie Xin, Hu Hao, Yang Xiaodong, Wu Chenhui, Li Yugang, Long Mujun, Chen Dengfu

引用次数: 0

Effect of Nanoparticle Content on the Magnetic, Thermal, and Optical Properties of CoFe2O4/PVP Nanocomposites 纳米颗粒含量对CoFe2O4/PVP纳米复合材料磁性、热学和光学性能的影响

IF 2.3 4区材料科学

JOM Pub Date : 2025-09-11 DOI: 10.1007/s11837-025-07729-w

Fatemeh Dehghan, Hassan Khandan Fadafan, Hossein Mighani

{"title":"Effect of Nanoparticle Content on the Magnetic, Thermal, and Optical Properties of CoFe2O4/PVP Nanocomposites","authors":"Fatemeh Dehghan, Hassan Khandan Fadafan, Hossein Mighani","doi":"10.1007/s11837-025-07729-w","DOIUrl":"10.1007/s11837-025-07729-w","url":null,"abstract":"<div>Polyvinyl pyrrolidone (PVP) is widely used due to its solubility, film-forming ability, and biocompatibility. However, its low thermal stability and lack of magnetic properties limit its use in high-temperature and magnetic-field-responsive applications. To overcome these drawbacks, cobalt ferrite (CoFe2O4)/PVP nanocomposites were synthesized with varying filler contents (0.5, 2, and 3 wt.%) using a conventional casting method. The materials were characterized by X-ray diffraction (XRD), field- emission scanning electron microscopy (FESEM), thermogravimetric analysis (TGA), vibrating sample magnetometry (VSM), and UV-Vis spectroscopy. XRD confirmed the spinel structure with an average crystallite size of 38.9 nm. FESEM showed nanoparticles (~ 42.1 nm) dispersed within the PVP matrix, with slight agglomeration. TGA revealed enhanced thermal stability at higher filler contents, indicated by increased degradation temperatures and char yield. VSM measurements demonstrated improved magnetization with increasing CoFe2O4 content. UV-Vis spectroscopy showed a reduction in optical bandgap from 3.75 eV (pure PVP) to 2.32 eV (3 wt.% nanocomposite), attributed to quantum confinement and interfacial interactions. These findings confirm that incorporating CoFe2O4 nanoparticles into PVP effectively enhances its thermal, magnetic, and optical properties, broadening its potential for advanced functional applications.</div>","PeriodicalId":605,"journal":{"name":"JOM","volume":"77 11","pages":"8166 - 8176"},"PeriodicalIF":2.3,"publicationDate":"2025-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145327561","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

Modelling Metal Plasticity and Damage with Constitutive Artificial Neural Networks 基于本构神经网络的金属塑性与损伤建模

IF 2.3 4区材料科学

JOM Pub Date : 2025-09-10 DOI: 10.1007/s11837-025-07697-1

Ta Duong, Douglas E. Spearot

引用次数: 0

The Manufacturing Process Chain Consisting of Thick Sheet Forming and Peripheral Milling: Modeling of Residual Stress-Related Geometric Deviations 由厚板成形和外围铣削组成的制造工艺链：残余应力相关几何偏差建模

IF 2.3 4区材料科学

JOM Pub Date : 2025-09-10 DOI: 10.1007/s11837-025-07700-9

Michael Ott, Moritz M. Mayer, Michael F. Zaeh, Wolfram Volk

{"title":"The Manufacturing Process Chain Consisting of Thick Sheet Forming and Peripheral Milling: Modeling of Residual Stress-Related Geometric Deviations","authors":"Michael Ott, Moritz M. Mayer, Michael F. Zaeh, Wolfram Volk","doi":"10.1007/s11837-025-07700-9","DOIUrl":"10.1007/s11837-025-07700-9","url":null,"abstract":"<div>The sequential combination of thick sheet forming and peripheral milling is an alternative to machining from solid blocks, with the advantage of increased material utilization. After the forming stage, a complex residual stress field is present in the workpieces. During the milling stage, a disturbance of the stress equilibrium can lead to workpiece distortion. A virtual modeling approach to predicting the residual stress-related geometric deviations is presented. This approach can be used to evaluate the influence of process control variables on deviations and to identify suitable parameter values for reducing them. First, the initial residual stress field at the beginning of the milling stage is determined based on a physical-mathematical model of the forming stage, considering the elasto-plastic properties of the sheet material. Subsequently, the geometric deviations resulting from material removal are modeled using a series of equilibrium calculations. For comparison, the manufacturing process chain was implemented experimentally, and measurements of the workpiece geometry using a tactile coordinate measuring system were performed. The resulting geometric deviations for two target geometries were used to validate the model predictions. The virtual model enabled the magnitude of the geometric deviations and the effectiveness of a two-step milling strategy to be predicted.</div>","PeriodicalId":605,"journal":{"name":"JOM","volume":"77 10","pages":"7559 - 7575"},"PeriodicalIF":2.3,"publicationDate":"2025-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s11837-025-07700-9.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145078864","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

TMS Introduces Graduate Student Advisory Council TMS引入研究生咨询委员会

IF 2.3 4区材料科学

JOM Pub Date : 2025-09-09 DOI: 10.1007/s11837-025-07768-3

Kelly Zappas

引用次数: 0

Evaluation of Hot Flow Behavior Models in FeCoCrNiAl0.1 High-Entropy Alloys by Modified Johnson-Cook Model, Modified Zerilli-Armstrong Model and GA-BP Neural Network 基于修正Johnson-Cook模型、修正zerili - armstrong模型和GA-BP神经网络的FeCoCrNiAl0.1高熵合金热流行为模型评价

IF 2.3 4区材料科学

JOM Pub Date : 2025-09-09 DOI: 10.1007/s11837-025-07714-3

Bo Li, Yuan Song, Zhicheng Huang, Han Yang, Zhaojie Chu, Xicong Ye, Dong Fang

{"title":"Evaluation of Hot Flow Behavior Models in FeCoCrNiAl0.1 High-Entropy Alloys by Modified Johnson-Cook Model, Modified Zerilli-Armstrong Model and GA-BP Neural Network","authors":"Bo Li, Yuan Song, Zhicheng Huang, Han Yang, Zhaojie Chu, Xicong Ye, Dong Fang","doi":"10.1007/s11837-025-07714-3","DOIUrl":"10.1007/s11837-025-07714-3","url":null,"abstract":"<div>The hot flow behavior of FeCoCrNiAl0.1 high-entropy alloys (HEAs) was investigated using a Gleeble−3500 thermal simulation test machine under hot deformation conditions at 950-1100°C/0.001-1 s-1. A modified Zerilli-Armstrong (Z-A) model, a modified Johnson-Cook (J-C) model, and a GA-BP neural network were devised to predict the hot flow behavior. Model accuracy was evaluated using correlation coefficients (R2) and mean absolute relative error (AARE). Additionally, electron backscatter diffraction (EBSD) analysis was employed to examine microstructural evolution of the studied alloy after hot compression experiments. The results indicate that the modified Z-A model yielded R2 of 0.9354 and AARE of 7.52%, while the modified J-C model attained R2 of 0.9435 and AARE of 6.38%. Notably, GA-BP neural network exhibits the highest accuracy, with R2 reaching 0.9969 and AARE of 2.66%. Microstructural analysis revealed that many fine recrystallized grains were formed at grain boundaries and within grain interiors. Continuous dynamic recrystallization (CDRX) and discontinuous dynamic recrystallization (DDRX) occurred simultaneously during hot deformation.</div>","PeriodicalId":605,"journal":{"name":"JOM","volume":"77 11","pages":"8068 - 8082"},"PeriodicalIF":2.3,"publicationDate":"2025-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145327592","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

Nuclear Materials Community to Gather at MiNES 2025 2025年，核材料界将齐聚矿山

IF 2.3 4区材料科学

JOM Pub Date : 2025-09-09 DOI: 10.1007/s11837-025-07772-7

Megan Enright

引用次数: 0

What's Ahead for Your TMS Membership in 2026 您的TMS会员在2026年的前景如何

IF 2.3 4区材料科学

JOM Pub Date : 2025-09-09 DOI: 10.1007/s11837-025-07767-4

Dan Miracle

引用次数: 0

Investigation of Al2O3 on the Melting Behavior and Leaching Process of Steelmaking Slag Al2O3对炼钢渣熔炼行为及浸出过程的影响

IF 2.3 4区材料科学

JOM Pub Date : 2025-09-09 DOI: 10.1007/s11837-025-07727-y

Rui Yang, Xiangning Meng, Gao Yang, Ruiqi Zeng, Wei Li

{"title":"Investigation of Al2O3 on the Melting Behavior and Leaching Process of Steelmaking Slag","authors":"Rui Yang, Xiangning Meng, Gao Yang, Ruiqi Zeng, Wei Li","doi":"10.1007/s11837-025-07727-y","DOIUrl":"10.1007/s11837-025-07727-y","url":null,"abstract":"<div>The steelmaking process in China produces significant quantities of slag, and its chemical composition substantially affects the potential for utilization of the slag. This study has investigated the melting behavior and leaching process of steelmaking slag with different Al2O3 contents. The initial melting temperature was observed to increase progressively with increasing Al2O3 content. Conversely, the effect of Al2O3 on the complete melting temperature exhibited a complex trend: it first decreased and then increased, reaching a minimum at 6.39% Al2O3. Al2O3 significantly affected the phase composition of the steelmaking slag. At lower Al2O3 contents, phosphorus predominantly existed in discrete calcium silicophosphate phases. In contrast, higher Al2O3 contents resulted in phosphorus distribution within multi-component solid solutions. The phosphorus leaching rate initially increased and then decreased as the Al2O3 content increased. The highest leaching rate occurred at an Al2O3 content of 6.39%, primarily attributed to the increased content of Ca5P2SiO12. These findings provide valuable insights into the correlation between the slag composition and leaching process of phosphorus, offering a theoretical foundation for enhancing the utilization efficiency of steelmaking slag.</div>","PeriodicalId":605,"journal":{"name":"JOM","volume":"77 11","pages":"8548 - 8556"},"PeriodicalIF":2.3,"publicationDate":"2025-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145327609","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

Detection and Classification of Cracking Via Acoustic Emission During Laser-Melting Screening for Additive Manufacturing 增材制造激光熔化筛分中裂纹的声发射检测与分类

IF 2.3 4区材料科学

JOM Pub Date : 2025-09-05 DOI: 10.1007/s11837-025-07642-2

Evan B. Raeker, Nikhil Tulshibagwale, Kaitlyn M. Mullin, James D. Lamb, Tresa M. Pollock

{"title":"Detection and Classification of Cracking Via Acoustic Emission During Laser-Melting Screening for Additive Manufacturing","authors":"Evan B. Raeker, Nikhil Tulshibagwale, Kaitlyn M. Mullin, James D. Lamb, Tresa M. Pollock","doi":"10.1007/s11837-025-07642-2","DOIUrl":"10.1007/s11837-025-07642-2","url":null,"abstract":"<div>Metal additive manufacturing provides opportunities for fabricating complex, high-performance parts. However, the processing demands of laser powder bed fusion have limited the availability of materials that are amenable to 3D printing, motivating development of new alloys that have low defect susceptibility. High-throughput screening tools are necessary to evaluate these new alloys and decrease prohibitive development costs. Acoustic emission sensing utilizing a piezoelectric sensor is investigated as a method for in situ crack detection during single-track laser melting experiments which are set to replicate laser powder bed fusion processing conditions. Two materials found to exhibit either solidification cracking (CMSX-4) or solid-state cracking (TZM) are examined, ultimately showing the experimental setup can detect individual solid-state cracking events but not solidification cracking events. Calibration of the sensor with ball-bearing drop tests down to 0.04 (upmu )J provides a useful assessment of the sensitivity of the technique. Furthermore, the acoustic emission data can be used to determine relative differences in crack size with varying scanning parameters (laser power, scan speed) and gain insight into the crack initiation characteristics of the material.</div>","PeriodicalId":605,"journal":{"name":"JOM","volume":"77 10","pages":"7274 - 7286"},"PeriodicalIF":2.3,"publicationDate":"2025-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145078848","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

JOM最新文献