JOM最新文献_第3页

Application of Steel Slag in Road Semi-Rigid Subgrade and its Volume Stability Modification Progress Study

IF 2.1 4区材料科学

JOM Pub Date : 2024-11-12 DOI: 10.1007/s11837-024-07007-1

Yingjie Chen, Zhenbin Chen, Shuyong Wang, Yuping Chen, Guoxin Chen

引用次数: 0

Effect of VC Content on Microstructure and Mechanical Properties of WC-VC/WC-TiC Laminated Ceramics VC 含量对 WC-VC/WC-TiC 层状陶瓷微观结构和力学性能的影响

IF 2.1 4区材料科学

JOM Pub Date : 2024-11-11 DOI: 10.1007/s11837-024-06990-9

Cheng Zhang, Jiaojiao Gao, Jinpeng Song

{"title":"Effect of VC Content on Microstructure and Mechanical Properties of WC-VC/WC-TiC Laminated Ceramics","authors":"Cheng Zhang, Jiaojiao Gao, Jinpeng Song","doi":"10.1007/s11837-024-06990-9","DOIUrl":"10.1007/s11837-024-06990-9","url":null,"abstract":"<div><p>WC-VC/WC-TiC (WV/WT) laminated ceramics with different VC contents were prepared by the layer-making and vacuum hot-pressing sintering technology, and the effect of VC content on their residual stress, microstructure, and mechanical properties has been studied. Residual stress in these ceramics increased with an increase of VC content. The residual compressive stress WV layer and residual tensile stress WT layer were alternately distributed in these ceramics. Adding an appropriate amount of VC could obtain a denser microstructure and finer grain. Crack deflection and crack bridging occurred in the crack propagation, and there were both transgranular fractures and intergranular fractures in these ceramics. With an increase of VC content, the relative density, flexural strength (FS), and fracture toughness (FT) of the WV layer and the Vickers hardness (VH) of the WV layer first rose and then decreased, while the VH of the WT layer kept decreasing and the FT of the WT layer had a small decrease. When the VC content was 10 wt.%, the ceramic possessed optimum comprehensive mechanical properties of an FS of 862.92 ± 11 MPa, FT of 8.52 ± 0.13 MPa m<sup>1/2</sup> for WV and 7.3 ± 0.13 MPa m<sup>1/2</sup> for WT, and a VH of 21.17 ± 0.15 GPa for WV and 20.56 ± 0.16 GPa for WT.</p></div>","PeriodicalId":605,"journal":{"name":"JOM","volume":"77 1","pages":"156 - 164"},"PeriodicalIF":2.1,"publicationDate":"2024-11-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142859481","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

Development of 4- Component Eutectic High Entropy Alloys Using Electromagnetic Levitation Technique 利用电磁悬浮技术开发四组分共晶高熵合金

IF 2.1 4区材料科学

JOM Pub Date : 2024-11-11 DOI: 10.1007/s11837-024-06988-3

Ahmed Umar Munawar, Fatima Nisar, Aamna Masood, Aqsa Aamer, Mohammad Shahin, Khurram Munir, Malik Adeel Umer, Florian Kargl

{"title":"Development of 4- Component Eutectic High Entropy Alloys Using Electromagnetic Levitation Technique","authors":"Ahmed Umar Munawar, Fatima Nisar, Aamna Masood, Aqsa Aamer, Mohammad Shahin, Khurram Munir, Malik Adeel Umer, Florian Kargl","doi":"10.1007/s11837-024-06988-3","DOIUrl":"10.1007/s11837-024-06988-3","url":null,"abstract":"<div><p>Eutectic high entropy alloys combine alternating ductile and hard phases to result in superior properties for load-bearing applications. In the present study, Zr, Nb, Ti, and Ta were added one at a time in equi-molar NiCoCr alloy which had previously shown single-phase Face centered cubic (FCC) microstructure. The mixture was then melted and solidified by electromagnetic levitation technique at low undercooling to ensure proper mixing and slow solidification. No post-solidification annealing was performed, which makes the process more energy- efficient. Post- solidification annealing is not only energy- and time- consuming but can also lead to oxidation of samples. Also, reducing the number of elements from 5 to 4 can reduce the casting defects and elemental segregation. The microstructure and properties of these compositions were compared with each other and with the Fe-containing 5 component counterparts of these alloys. Most of these 4 component alloys revealed microstructures consisting of FCC and intermetallic phases. Scanning electron microscope (SEM) and x-ray diffraction (XRD) techniques were used to investigate the microstructure. Microhardness and nanoindentation testing of these alloys showed high strength and hardness of these alloys. Hardness results were then investigated, using the theoretical calculations on enthalpy of mixing, atomic size difference, entropy of mixing and valence electron concentration. The study demonstrated that the addition of Zr, Nb, Ta, and Ti to NiCoCr alloy resulted in the formation of bright intermetallic phases rich in the added elements, and varying degrees of lamellar microstructures. All the alloys exhibited high nanohardness and reduced modulus, lying in the range of 11–17 GPa and 150–225 GPa, respectively.</p></div>","PeriodicalId":605,"journal":{"name":"JOM","volume":"77 1","pages":"294 - 302"},"PeriodicalIF":2.1,"publicationDate":"2024-11-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142859482","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

Evolution of (Ti, V) Compounds in the Al-Ti-V-B System and the Refinement Performance Thereof

IF 2.1 4区材料科学

JOM Pub Date : 2024-11-11 DOI: 10.1007/s11837-024-06981-w

Qingyu Ran, Maoliang Hu, Tong Liu, Fei Wang, Bo Jiang, Hongyu Xu, Ye Wang, Zesheng Ji

{"title":"Evolution of (Ti, V) Compounds in the Al-Ti-V-B System and the Refinement Performance Thereof","authors":"Qingyu Ran, Maoliang Hu, Tong Liu, Fei Wang, Bo Jiang, Hongyu Xu, Ye Wang, Zesheng Ji","doi":"10.1007/s11837-024-06981-w","DOIUrl":"10.1007/s11837-024-06981-w","url":null,"abstract":"<div><p>This study utilizes aluminum and titanium chips as raw materials and employs different boron sources in combination with melt reaction technology to successfully develop an innovative Al-2.5Ti-2.5 V-1B grain refiner. Experimental results indicate that the addition of V element enhances the formation of (Ti, V)Al<sub>3</sub> and (Ti, V)B<sub>2</sub> phases. When Al-3B is used as the B source, the (Ti, V)Al<sub>3</sub> phase displays long needle-like morphologies; in contrast, using KBF<sub>4</sub> as the B source results in the formation of short stick-like and small block-like structures. Among these B sources, the refiner containing Al-3B shows a more significant refinement effect. When 0.6% of this refiner is added to Al-7Si alloy at 760°C for a refining duration of 10 min, it significantly reduces the grain size from 1659 ± 83 µm to 388 ± 19 µm. Additionally, only a minimal increase in grain size is observed after 70 min, demonstrating its excellent resistance to anti-fading. This research advances the use of metal chips in producing effective grain refiners to counteract silicon poisoning in aluminum alloys.</p></div>","PeriodicalId":605,"journal":{"name":"JOM","volume":"77 1","pages":"261 - 270"},"PeriodicalIF":2.1,"publicationDate":"2024-11-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142859484","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

Prediction of Ladle Furnace Refining Endpoint Temperature Based on Particle Swarm Optimization Algorithm and Long Short-Term Memory Neural Network

IF 2.1 4区材料科学

JOM Pub Date : 2024-11-11 DOI: 10.1007/s11837-024-06983-8

Huan Wang, Min Wang, Qing Liu, Zeyu Yang, Lidong Xing

{"title":"Prediction of Ladle Furnace Refining Endpoint Temperature Based on Particle Swarm Optimization Algorithm and Long Short-Term Memory Neural Network","authors":"Huan Wang, Min Wang, Qing Liu, Zeyu Yang, Lidong Xing","doi":"10.1007/s11837-024-06983-8","DOIUrl":"10.1007/s11837-024-06983-8","url":null,"abstract":"<div><p>The temperature control of molten steel is crucial in ladle furnace (LF) refining. In this paper, the factors influencing endpoint temperature were obtained by analyzing the LF refining process, and high-quality data sets were obtained by combining data cleaning and processing. Then, a black box model based on particle swarm optimization (PSO) and long short-term memory (LSTM) neural network machine learning algorithm was proposed to predict the endpoint temperature of LF, avoiding the inadequacy of manual parameter adjustment. The constructed PSO–LSTM model yielded the following results: The coefficient of determination (<i>R</i><sup>2</sup>), mean absolute error (MAE), and root mean square error (RMSE) were 0.924, 4.064, and 5.109, and the prediction hit rates within the ranges of [−3,3], [−5,5], [−8,8], and [−10,10] were 43.16%, 71.12%, 88.15%, and 94.83%, respectively. The accuracy of multiple linear regression (MLR), backpropagation (BP) neural network, genetic algorithm back propagation (GA-BP) neural network, particle swarm optimization back propagation (PSO-BP) neural network, LSTM neural network, and the present model was compared from different dimensions, and the results demonstrated that the consistency and correlation between the PSO–LSTM model prediction values and the measured values were higher, the model prediction accuracy was superior, and the model effectively predicted molten steel temperature in the LF furnace.</p></div>","PeriodicalId":605,"journal":{"name":"JOM","volume":"77 1","pages":"282 - 293"},"PeriodicalIF":2.1,"publicationDate":"2024-11-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s11837-024-06983-8.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142859483","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

Exploring the Link between HY Wet Ball Mill Work Index and Grinding Energy Consumption 探索 HY 湿法球磨机工作指数与磨矿能耗之间的联系

IF 2.1 4区材料科学

JOM Pub Date : 2024-11-11 DOI: 10.1007/s11837-024-06967-8

Chen Peng, Hou Ying, Lv Hongxu, Sobhy Ahmed

引用次数: 0

Building on a Decade of Impact: Fifth Diversity Summit Planned at TMS2025 在十年影响力的基础上再接再厉：计划在 TMS2025 上举办第五次多元化峰会

IF 2.1 4区材料科学

JOM Pub Date : 2024-11-06 DOI: 10.1007/s11837-024-06999-0

Eric Brown, Blythe Clark

引用次数: 0

The Fatigue Deformation Mechanism of TC17 Alloy with Residual Stress and Microstructure Dual Gradients 具有残余应力和显微组织双梯度的 TC17 合金的疲劳变形机理

IF 2.1 4区材料科学

JOM Pub Date : 2024-11-06 DOI: 10.1007/s11837-024-06959-8

Jincheng Gu, Jie Liu, Tong Zheng, Juan Mu, Zhengwang Zhu, Haifeng Zhang, Yandong Wang

{"title":"The Fatigue Deformation Mechanism of TC17 Alloy with Residual Stress and Microstructure Dual Gradients","authors":"Jincheng Gu, Jie Liu, Tong Zheng, Juan Mu, Zhengwang Zhu, Haifeng Zhang, Yandong Wang","doi":"10.1007/s11837-024-06959-8","DOIUrl":"10.1007/s11837-024-06959-8","url":null,"abstract":"<div><p>Surface deformation strengthening treatment could effectively enhance the fatigue properties of aerospace titanium alloy components, which is attributed to the occurrence of residual compressive stress and microstructure dual gradients. However, the evolution of the dual gradients during fatigue deformation has barely been studied, and the deformation mechanism is still puzzling. In this work, TC17 alloys were strengthened by ultrasonic shot peening (USP) treatment. The fatigue life of USP-20W is 73% higher than that of the original alloy. During fatigue deformation, the dislocation density in the surface and subsurface layers is further increased to enhance work hardening, while the < 001 > <sub><i>β</i></sub>//LD texture and < 111 > <sub><i>β</i></sub>//LD texture rotate towards the < 112 > <sub><i>β</i></sub>//LD texture for balancing strength and plasticity. Notably, the fatigue crack initiation site of USP-20W was located approximately 80 <i>μ</i>m below the surface. It is attributed to the dislocation accumulation and local stress concentration caused by the orientation mutation of <i>β</i>-Ti, which favors the formation of a localized weak zone for fatigue damage. This finding holds substantial significance for optimizing material performance in aerospace components.</p></div>","PeriodicalId":605,"journal":{"name":"JOM","volume":"77 1","pages":"313 - 323"},"PeriodicalIF":2.1,"publicationDate":"2024-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s11837-024-06959-8.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142859677","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 Member News TMS 会员新闻

IF 2.1 4区材料科学

JOM Pub Date : 2024-11-06 DOI: 10.1007/s11837-024-06997-2

引用次数: 0

Betting on a Successful TMS2025 in Las Vegas 赌 TMS2025 在拉斯维加斯取得成功

IF 2.1 4区材料科学

JOM Pub Date : 2024-11-06 DOI: 10.1007/s11837-024-06998-1

Kelly Zappas

引用次数: 0