Journal of Materials Research and Technology-Jmr&t最新文献_第10页

Weighted average study of transition metal segregation at Ni grain boundaries and its effect on grain boundary cohesion Ni晶界过渡金属偏析及其对晶界凝聚力影响的加权平均研究

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 金属变形内态变本构模型的建立与应用

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 结合原位技术研究了贝氏体形态对中碳贝氏体钢强度和韧性的影响

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 运动监测和医疗电热用炭黑基弹性导电纤维的纺丝溶液降粘和湿法纺丝

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 热压粘接提高TA3/L907A异种钢复合钢板的力学性能

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] “通过临界间淬火处理获得低屈服比与增强低温韧性同步的550MPa级桥梁钢”的勘误[J]材料与技术，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

Steady states in severe plastic deformations and microstructure at normal and high pressure 正常和高压下剧烈塑性变形的稳态和微观结构

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.2025.03.060

Valery I. Levitas

{"title":"Steady states in severe plastic deformations and microstructure at normal and high pressure","authors":"Valery I. Levitas","doi":"10.1016/j.jmrt.2025.03.060","DOIUrl":"10.1016/j.jmrt.2025.03.060","url":null,"abstract":"<div><div>The main fundamental problem in studying plasticity and microstructure evolution is that they depend on five components of the plastic strain tensor <strong><em>ε</em></strong><sub><em>p</em></sub>, its entire path <span><math><mrow><msubsup><mi>ε</mi><mi>p</mi><mrow><mspace></mspace><mi>p</mi><mi>a</mi><mi>t</mi><mi>h</mi></mrow></msubsup></mrow></math></span>, and pressure <em>p</em> and its path <em>p</em><sup><em>path</em></sup>, which leaves little hope of finding some general laws, especially at severe plastic straining and high pressures. Here, we review the validity of the following hypothesis for quasi-static material behavior after some critical level of cold severe plastic strain and some straining paths: initially isotropic polycrystalline materials behave like perfectly plastic, isotropic, and strain-path-independent with the corresponding limit surface of perfect plasticity and reach steady values of the crystallite/grain size and dislocation density, which are strain- and strain-path-independent. However, there are multiple steady microstructural states and corresponding limit surfaces of perfect plasticity. The main challenge is to find for which classes of loading paths <span><math><mrow><msubsup><mi>ε</mi><mi>p</mi><mrow><mspace></mspace><mi>p</mi><mi>a</mi><mi>t</mi><mi>h</mi></mrow></msubsup></mrow></math></span> and <em>p</em> <sup><em>path</em></sup> material behaves along the same limit surface of perfect plasticity and steady microstructural state and for which loading paths <span><math><mrow><msubsup><mi>ε</mi><mi>p</mi><mrow><mspace></mspace><mi>p</mi><mi>a</mi><mi>t</mi><mi>h</mi></mrow></msubsup></mrow></math></span> and <em>p</em><sup><em>path</em></sup> there is a jump to the different limit surface of perfect plasticity and steady microstructural state. Various experimental, computational, and coupled experimental-computational techniques are analyzed, and some controversies and challenges are summarized.</div></div>","PeriodicalId":54332,"journal":{"name":"Journal of Materials Research and Technology-Jmr&t","volume":"36 ","pages":"Pages 382-397"},"PeriodicalIF":6.2,"publicationDate":"2025-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143645069","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

Advancing conductivity modeling: A unified framework for polymer carbon black nanocomposites 推进电导率建模：聚合物炭黑纳米复合材料的统一框架

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.2025.03.104

Yasser Zare , Muhammad Naqvi , Kyong Yop Rhee , Soo-Jin Park

{"title":"Advancing conductivity modeling: A unified framework for polymer carbon black nanocomposites","authors":"Yasser Zare , Muhammad Naqvi , Kyong Yop Rhee , Soo-Jin Park","doi":"10.1016/j.jmrt.2025.03.104","DOIUrl":"10.1016/j.jmrt.2025.03.104","url":null,"abstract":"<div><div>Although numerous experimental data on the conductivity of polymer carbon black (CB) nanocomposites (PCBs) have been reported, the modeling approaches remain incomplete and require further attention. This article proposes a simplified model for predicting the PCB electrical conductivity, incorporating key parameters such as CB radius (<em>R</em>), tunneling distance (<em>λ</em>), contact diameter (<em>d</em>), interphase depth, network percentage, and interfacial tension between CB and polymer. Experimental PCB conductivity data and parametric evaluations are utilized to validate the proposed model. The proposed model predicts that the thinnest and widest tunnels (<em>λ</em> = 2 nm and <em>d</em> = 30 nm) attain a maximum conductivity of 5.5 S/m. However, tunnels bigger than 4 nm cannot enhance the conductivity. Additionally, increasing the concentration of the smallest CBs (<em>R</em> = 10 nm) to 10 vol% boosts PCB conductivity to 4.9 S/m, whereas low concentrations (<5 vol%) of larger CBs (<em>R</em> > 17 nm) have negligible effect. These findings underscore the critical roles of tunneling dimensions together with CB size and concentration in the conductivity of this system.</div></div>","PeriodicalId":54332,"journal":{"name":"Journal of Materials Research and Technology-Jmr&t","volume":"36 ","pages":"Pages 26-33"},"PeriodicalIF":6.2,"publicationDate":"2025-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143620800","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

Horizontal rotating arc narrow-gap GTAW of thick Ti–6Al–4V alloy 厚Ti-6Al-4V合金水平旋转电弧窄间隙GTAW

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.2025.03.101

Kan Li , Chuanbao Jia , Peidun Chen , Jiakun Hu , Zhuo Wei , Qingye Zheng , Yinggang Wang , Chuansong Wu

{"title":"Horizontal rotating arc narrow-gap GTAW of thick Ti–6Al–4V alloy","authors":"Kan Li , Chuanbao Jia , Peidun Chen , Jiakun Hu , Zhuo Wei , Qingye Zheng , Yinggang Wang , Chuansong Wu","doi":"10.1016/j.jmrt.2025.03.101","DOIUrl":"10.1016/j.jmrt.2025.03.101","url":null,"abstract":"<div><div>The horizontal welding method helps simplify assembly and construction for large cylindrical components. Nonetheless, a notable challenge arises during horizontal welding, as the molten pool tends to flow downward due to gravity. To overcome this problem, a novel horizontal rotating-arc narrow-gap GTAW method has been implemented. The rotating arc promotes the flow of the molten metal and counteracts part of the gravity acting on the molten pool when the arc force is applied below it. This suppresses the sagging trend of the molten pool and improves weld formation, ultimately resulting in well-formed and defect-free welded joints. This innovative technique successfully welded horizontally 50 mm thick Ti–6Al–4V alloy plates. During the welding process of the dual-phase titanium alloy, the high-temperature β phase develops in the weld zone (WZ). Columnar crystals are retained with the cooling of the weld and grow epitaxially under the continuous heating and remelting of the subsequent weld. Within the columnar crystals, α′ martensite interlaces with the residual β phase and forms a basketweave structure. The proportion of low-angle grain boundaries and the average Kernel Average Misorientation values of the weld zone are lower than those of the base metal. Benefiting from the martensitic strengthening effect, the tensile strength of the WZ increased by 16.9 % compared to the base metal. The tensile properties exhibit good consistency across the full thickness of the joints. The impact toughness of the WZ is significantly improved, especially showing excellent low-temperature impact toughness at 0 °C.</div></div>","PeriodicalId":54332,"journal":{"name":"Journal of Materials Research and Technology-Jmr&t","volume":"36 ","pages":"Pages 369-381"},"PeriodicalIF":6.2,"publicationDate":"2025-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143645068","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

A comparative study on time-dependent corrosion properties of Ti–B–N films applied by PACVD method PACVD法制备Ti-B-N膜时腐蚀性能的对比研究

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.2025.03.097

Meisam Mahdavi , Amir Abdollah-Zadeh , Hassan Elmkhah

{"title":"A comparative study on time-dependent corrosion properties of Ti–B–N films applied by PACVD method","authors":"Meisam Mahdavi , Amir Abdollah-Zadeh , Hassan Elmkhah","doi":"10.1016/j.jmrt.2025.03.097","DOIUrl":"10.1016/j.jmrt.2025.03.097","url":null,"abstract":"<div><div>This study explores the time-dependent corrosion properties of titanium-boron-nitride (Ti–B–N) film applied through a pulsed-direct current plasma-assisted chemical vapor deposition (PACVD) method, comparing their performance with traditional titanium nitride (TiN) and titanium diboride (TiB<sub>2</sub>) films. The results revealed the nanocomposite structure of Ti–B–N film, characterized by a non-uniform atomic arrangement and irregular atomic distribution of amorphous BN surrounding the TiN nanocrystals. Electrochemical evaluations in a 3.5 wt% NaCl solution revealed that after 96 h of immersion, the Ti–B–N films had a charge transfer resistance (R<sub>ct</sub>) of 15980 Ω cm<sup>2</sup>, significantly outperforming TiN at 2755 Ω cm<sup>2</sup> and TiB<sub>2</sub> at 2593 Ω cm<sup>2</sup>. The corrosion current density (i<sub>corr</sub>) for Ti–B–N was measured at 0.193 μA/cm<sup>2</sup>, indicating enhanced corrosion resistance compared to 0.413 μA/cm<sup>2</sup> for TiN and 0.548 μA/cm<sup>2</sup> for TiB<sub>2</sub>. The remarkable corrosion resistance of the Ti–B–N film is ascribed to its low surface roughness (R<sub>a</sub> = 0.1 μm), optimal thickness (875 nm), and dense nanocomposite architecture.</div></div>","PeriodicalId":54332,"journal":{"name":"Journal of Materials Research and Technology-Jmr&t","volume":"36 ","pages":"Pages 80-97"},"PeriodicalIF":6.2,"publicationDate":"2025-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143628060","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