Journal of Materials Research and Technology-Jmr&t最新文献_第8页

Material removal rate model of single crystal diamond near atomic scale chemical mechanical polishing based on SOA

IF 6.2 2区材料科学

Journal of Materials Research and Technology-Jmr&t Pub Date : 2025-03-13 DOI: 10.1016/j.jmrt.2025.03.109

Zhuang Song, Xiaoguang Guo, Wanxue Zhang, Zhaoze Li, Guanghui Fan, Renke Kang

{"title":"Material removal rate model of single crystal diamond near atomic scale chemical mechanical polishing based on SOA","authors":"Zhuang Song, Xiaoguang Guo, Wanxue Zhang, Zhaoze Li, Guanghui Fan, Renke Kang","doi":"10.1016/j.jmrt.2025.03.109","DOIUrl":"10.1016/j.jmrt.2025.03.109","url":null,"abstract":"<div><div>Traditional mechanical polishing faces significant challenges in achieving ideal surface quality on single crystal diamond (SCD). Chemical mechanical polishing (CMP), combining chemical oxidation and mechanical grinding, offers an effective solution for improving the surface quality of hard and brittle materials. Understanding the material removal characteristics of SCD during CMP is crucial. In this study, the instantaneous contact velocity model of the workpiece and the abrasive particles is established by geometric kinematics, and the instantaneous contact velocity of the abrasive particles at any point on the surface of the workpiece is obtained. Based on the Greenwood and Williamson elastic contact model, the microscopic contact model between the workpiece and the polishing pad is studied, and the effective contact area between the workpiece and the polishing pad and the number of abrasive particles in the effective contact area are obtained. Considering the elastic-plastic deformation in the CMP process of SCD, the micro-contact model between single abrasive particle and workpiece surface is further established, and then the material removal rate (MRR) prediction model of SCD CMP is established. Experimental results reveal the impact of polishing pressure and speed on MRR and surface roughness. The theoretical MRR values align with experimental trends, and the Seagull Optimization Algorithm (SOA) refines the model, reducing the average relative error between theoretical and experimental MRR to 5.98 % and 5.81 %, respectively. The results demonstrate the model's validity. The SCD with near atomic scale ultra-smooth surface is obtained, and the sub-nanometer surface roughness Sa is 0.311 nm. At the same time, the interaction mechanism between chemical oxidation and mechanical removal is investigated through atomic-scale analysis using the ReaxFF molecular dynamics model.</div></div>","PeriodicalId":54332,"journal":{"name":"Journal of Materials Research and Technology-Jmr&t","volume":"36 ","pages":"Pages 762-776"},"PeriodicalIF":6.2,"publicationDate":"2025-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143680450","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

Characterization of residual stress in a 316H stainless steel weld by neutron diffraction and finite element modeling

IF 6.2 2区材料科学

Journal of Materials Research and Technology-Jmr&t Pub Date : 2025-03-13 DOI: 10.1016/j.jmrt.2025.03.111

Hongchuan Ma , Zaifeng Zhou , Yang Li , Huaile Lu , Shilei Li , Xu Cao , Lunhua He , Yandong Wang

{"title":"Characterization of residual stress in a 316H stainless steel weld by neutron diffraction and finite element modeling","authors":"Hongchuan Ma , Zaifeng Zhou , Yang Li , Huaile Lu , Shilei Li , Xu Cao , Lunhua He , Yandong Wang","doi":"10.1016/j.jmrt.2025.03.111","DOIUrl":"10.1016/j.jmrt.2025.03.111","url":null,"abstract":"<div><div>The accurate prediction and measurement of residual stress is highly important for service reliability of welded engineering components. In this study, the residual stress distribution of 316H double V-groove welded joint was simulated using finite element method (FEM) and measured by neutron diffraction technique. The measured and simulated results of residual stress after heat treatment are consistent in the overall trend. The post-weld heat treatment causes the residual stresses in different zones of the weldment to redistribute and greatly reduce overall. From the heat-affected zone to the base metal, the tensile stress along the x direction gradually decreases, the compressive stress along the y direction gradually increases, and the stress along the z direction remains very low level. The residual stresses measured by neutron diffraction technique are calculated by fitting the {311} diffraction peaks. The effect of crystal plane selection on the measured residual stress is also discussed.</div></div>","PeriodicalId":54332,"journal":{"name":"Journal of Materials Research and Technology-Jmr&t","volume":"36 ","pages":"Pages 539-547"},"PeriodicalIF":6.2,"publicationDate":"2025-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143680684","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

Hierarchical coherent precipitates lead to high tensile strength in casting BCC-structured Al0.8CrNiMn2Fe2.5 high-entropy alloy

IF 6.2 2区材料科学

Journal of Materials Research and Technology-Jmr&t Pub Date : 2025-03-13 DOI: 10.1016/j.jmrt.2025.03.112

Sizhe Peng , Shubin Wang , Zhiyu Hao , Donghong Wang , Da Shu

{"title":"Hierarchical coherent precipitates lead to high tensile strength in casting BCC-structured Al0.8CrNiMn2Fe2.5 high-entropy alloy","authors":"Sizhe Peng , Shubin Wang , Zhiyu Hao , Donghong Wang , Da Shu","doi":"10.1016/j.jmrt.2025.03.112","DOIUrl":"10.1016/j.jmrt.2025.03.112","url":null,"abstract":"<div><div>High-entropy alloys (HEAs) with body-centered-cubic (BCC) structure usually displayed high compressive strengths, but completely brittle fractured upon tensile test at room temperature. Here, we report a directly cast Co-free Al<sub>0.8</sub>CrNiMn<sub>2</sub>Fe<sub>2.5</sub> HEA with hierarchical microstructure and high tensile strength. This low-cost HEA consists of a Fe–Cr-rich disordered BCC (A2) matrix containing uniformly distributed high-density Ni–Al-rich ordered BCC (B2) ultra-fine precipitates (∼198 nm) and secondary B2 nanoprecipitates (∼13 nm). Owing to the hierarchical coherent precipitates, the duplex BCC-structured HEA displayed a remarkable tensile yield strength of ∼907 MPa and an ultimate tensile strength of ∼1328 MPa together with an appreciable failure strain of ∼9.6 % at room temperature, which is superior to most conventional alloys and HEAs in as-cast condition. The study introduces an effective approach for fabricating alloys with nanostructures, utilizing casting methods to achieve the targeted characteristics based on a well-thought-out compositional design.</div></div>","PeriodicalId":54332,"journal":{"name":"Journal of Materials Research and Technology-Jmr&t","volume":"36 ","pages":"Pages 903-912"},"PeriodicalIF":6.2,"publicationDate":"2025-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143680389","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

Pinhole formation and its mitigation for Cu electrodeposition on the Ajinomoto build-up film (ABF) with different surface roughnesses

IF 6.2 2区材料科学

Journal of Materials Research and Technology-Jmr&t Pub Date : 2025-03-13 DOI: 10.1016/j.jmrt.2025.03.100

Pei-Chia Hsu , Zhao-Yu Yang , Chi Lee , Cheng-En Ho , Chih-Ming Chen , Yu-An Shen

{"title":"Pinhole formation and its mitigation for Cu electrodeposition on the Ajinomoto build-up film (ABF) with different surface roughnesses","authors":"Pei-Chia Hsu , Zhao-Yu Yang , Chi Lee , Cheng-En Ho , Chih-Ming Chen , Yu-An Shen","doi":"10.1016/j.jmrt.2025.03.100","DOIUrl":"10.1016/j.jmrt.2025.03.100","url":null,"abstract":"<div><div>In this study, the roughness effects of an Ajinomoto build-up film (ABF) on the crystallographic microstructure and corrosion characteristics of electroplated Cu were systematically investigated via scanning electron microscopy (SEM) in conjunction with electron backscatter diffraction (EBSD), transmission electron microscopy (TEM), X-ray diffraction (XRD), and focused ion beam (FIB) methods. The strong dependences of the Cu crystallographic microstructure and pinhole formation on the ABF roughness were revealed in these investigations. We found that smaller Cu grains with fewer twin boundaries (TBs) and more low-angle grain boundaries (LAGBs) were easily created in the Cu deposits over a low-roughness ABF substrate, which is closely related to pinhole formation because of poor corrosion resistance resulting from numerous grain boundaries (fined grains) and inferior grain boundary (GB) characteristics. Here, we proposed a method that enables the generation of larger Cu grains with more TBs through an appropriate annealing treatment combined with adjusting the plating current density, thereby preventing undesired pinhole formation over a low-roughness ABF substrate. These findings advanced our understanding of the effects of substrate roughness on the Cu microstructure and pinhole formation, which is very beneficial for the application of low-profile substrates for 5G/6G high-frequency signal transmission.</div></div>","PeriodicalId":54332,"journal":{"name":"Journal of Materials Research and Technology-Jmr&t","volume":"36 ","pages":"Pages 193-202"},"PeriodicalIF":6.2,"publicationDate":"2025-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143641820","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

Weighted average study of transition metal segregation at Ni grain boundaries and its effect on grain boundary cohesion

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.2025.03.099

Yanyan Shi , Hongtao Xue , Fuling Tang , Ruidong Dang , Fengjuan Si , Yuxia Hu

引用次数: 0

Development and application of an internal state variable constitutive model for deformation of metals

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.2025.03.062

Paul S. Follansbee

引用次数: 0

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 , Wei Liu , Xiaoyan Long , Zeliang Liu , Yanguo Li , Zhinan Yang , 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 , Yang Liu , Dongling Bian , Fang He , Yunyu Li , 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 (>10,000 cycles) and cyclic washing and drying (>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

Improving mechanical properties of dissimilar TA3/L907A steel clad plates with multiple interlayers via hot-compression bonding

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.2025.03.105

He Xiao , Weifeng Liu , Qianning Dai , Shaofei Ren , Bin Xu , Shengqing Wu , Sheng Liu , Mingyue Sun

{"title":"Improving mechanical properties of dissimilar TA3/L907A steel clad plates with multiple interlayers via hot-compression bonding","authors":"He Xiao , Weifeng Liu , Qianning Dai , Shaofei Ren , Bin Xu , Shengqing Wu , Sheng Liu , Mingyue Sun","doi":"10.1016/j.jmrt.2025.03.105","DOIUrl":"10.1016/j.jmrt.2025.03.105","url":null,"abstract":"<div><div>In this study, the TA3/L907A titanium-steel clad plates with or without interlayers were fabricated via HCB and the interfacial microstructure, and shear strength were investigated in detail. A reaction layer mixed by Fe–Ti interphases and TiC formed at the TA3/L907A interface and the formation of brittle intermetallic compounds (IMCs) severely deteriorated the interfacial properties, which resulted in a low shear strength of 192 MPa. To improve the shear strength, Ni foil, Nb foil, and Nb + Ni foils were respectively added as interlayer between TA3 and L907A. With interlayers, no visible Fe–Ti–C IMCs were detected at the interface, which suggests that interlayers effectively prohibited the inter-diffusion of these elements. Although Ni or Nb interlayer respectively elevated the interfacial shear strength to 333 MPa and 359 MPa, weak-bonded features such as lamellar Ni–Ti interphases and Fe<sub>2</sub>Nb IMC still existed, making cracks tend to initiate at these regions. Further adding Nb + Ni double interlayers achieved the highest shear strength of 422 MPa. The enhancement in property can be attributed to solid solution regions at both Ti/Nb and Ni/Steel interfaces without IMC or void, and the discontinuous distributed olive-like δ-Ni<sub>3</sub>Nb precipitation at the Nb/Ni interface.</div></div>","PeriodicalId":54332,"journal":{"name":"Journal of Materials Research and Technology-Jmr&t","volume":"36 ","pages":"Pages 111-122"},"PeriodicalIF":6.2,"publicationDate":"2025-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143629232","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

引用次数: 0