首页期刊导航|武汉理工大学学报（材料科学版）（英文版）
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武汉理工大学学报（材料科学版）（英文版）
武汉理工大学学报（材料科学版）（英文版）

陈银洲

双月刊

1000-2413

jwutms@whut.edu.cn

027-87384113

430070

武汉武昌珞狮路122号

武汉理工大学学报（材料科学版）（英文版）/Journal Journal of Wuhan University of Technology(Materials Science Edition)CSTPCDCSCDEISCI
查看更多>>本刊为国内材料领域的综合性学术刊物，由武汉理工大学主办。1996起至今为中国大陆三家以高校命名进入SCI的学报之一，且论文近100%被SCI和EI收录。自1996年起进入EI、CA千名表，并进入CBST、ΡЖ。本刊1999年受到中国科协和国家自然科学基金联合颁发的重点扶持性资助，被中国科技论文统计源期刊，中国科学引文数据库来源期刊，中国学术期刊综合评价数据库来源期刊，中国期刊网和万方数据网源刊等收录。本刊的主要任务是：反映材料及其相关领域内最新科研及工程应用成果(包括新理论、新产品、新工艺等)，主要刊登材料基础研究及应用研究的学术论文，注重发表校内外作者的省部级以上科研基金资助课题的产出论文。读者对象为国内外从事材料及其相关专业的工作者及大专院校师生。1999年获中国科协和国家自然科学基金联合颁发的重点科技性资助。
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    Macro-mechanics and Microstructure of Nanomaterial-modified Geopolymer Concrete:A Comprehensive Review

    WANG TaoFAN XiangqianGAO ChangshengQU Chiyu...
    204-214页
    查看更多>>摘要：We have described in detail the effects of nano-SiO2,nano-CaCO3,carbon nanotubes,and nano-Al2O3 on geopolymer concrete from the perspectives of macro mechanics and microstructure.The existing research results show that the mechanism of nano-materials on geopolymer concrete mainly includes the filling effect,nucleation effect,and bridging effect,the appropriate amount of nano-materials can be used as fillers to reduce the porosity of geopolymer concrete,and can also react with Ca(OH)2 to produce C-S-H gel,thereby improving the mechanical properties of geopolymer concrete.The optimum content of nano-SiO2 is between 1.0%and 2.0%.The optimum content of nano-CaCO3 is between 2.0%and 3.0%.The optimum content of carbon nanotubes is between 0.1%and 0.2%.The optimum content of nano-Al2O3 is between 1.0%and 2.0%.The main problems existing in the research and application of nanomaterial-modified geopolymer concrete are summarized,which lays a foundation for the further application of nanomaterial in geopolymer concrete.
      原文链接:
    • NETL
    • NSTL
    • 万方数据

    RF Optimizer Model for Predicting Compressive Strength of Recycled Concrete

    LIU LinWANG LiuyanWANG HuiSUN Huayue...
    215-223页
    查看更多>>摘要：Traditional machine learning(ML)encounters the challenge of parameter adjustment when predicting the compressive strength of reclaimed concrete.To address this issue,we introduce two optimized hybrid models:the Bayesian optimization model(B-RF)and the optimal model(Stacking model).These models are applied to a data set comprising 438 observations with five input variables,with the aim of predicting the compressive strength of reclaimed concrete.Furthermore,we evaluate the performance of the optimized models in comparison to traditional machine learning models,such as support vector regression(SVR),decision tree(DT),and random forest(RF).The results reveal that the Stacking model exhibits superior predictive performance,with evaluation indices including R2=0.825,MAE=2.818 and MSE=14.265,surpassing the traditional models.Moreover,we also performed a characteristic importance analysis on the input variables,and we concluded that cement had the greatest influence on the compressive strength of reclaimed concrete,followed by water.Therefore,the Stacking model can be recommended as a compressive strength prediction tool to partially replace laboratory compressive strength testing,resulting in time and cost savings.
      原文链接:
    • 万方数据
    • 维普

    Mechanism Study on the Effect of Retarder on Polyurethane Setting Time Based on Molecular Simulation

    WU YuxuanXU WenyuanYU TianlaiJI Yongcheng...
    224-231页
    查看更多>>摘要：This study identified castor oil and phosphate ester as effective retarders through setting time,tensile,and flexural tests,and determined their optimal dosages.The mechanism by which phosphate ester affects the setting time of polyurethane was further investigated using molecular dynamics simulations.Fourier transform infrared spectroscopy was also employed to systematically study the physical and chemical interactions between phosphate esters and polyurethane materials.The results demonstrate that a 1%concentration of phosphate ester provides the most effective retarding effect with minimal impact on the strength of polyurethane.When phosphate ester is added to the B component of the two-component polyurethane system,its interaction energy with component A decreases,as do the diffusion coefficient and aggregation degree of component B on the surface of component A.This reduction in interaction slows the setting time.Additionally,the addition of phosphate ester to polyurethane leads to the disappearance or weakening of functional groups,indicating competitive interactions within the phosphate ester components that inhibit the reaction rate.
      原文链接:
    • 万方数据
    • 维普

    Preparation of Modified Composite Nanofiltration Membrane Synergistically Using Carboxylic Multi-walled Carbon Nanotube and β-cyclodextrin

    LIU PengMAO JunpengFANG YanfengYU Yunwu...
    232-239页
    查看更多>>摘要：A new modified blend ultrafiltration(UF)membrane with good hydrophilicity,high porosity and excellent anti-fouling performance was developed by using carboxylic multi-walled carbon nanotube(CMWCNT)as casting solution additive.Furthermore,a composite nanofiltration(NF)membrane with large water flux and good retention rate was fabricated by using the PVDF/CMWCNT blend UF membrane as the substrate,and polyvinyl alcohol(PVA),β-cyclodextrin(β-CD)and polyethylenimine(PEI)as the coating solution.The results show that with the appropriate addition of CMWCNT in the casting solution,the surface roughness,porosity and recovery rate of the PVDF/CMWCNT blend UF membrane is obviously increased.The water flux of blend UF membrane is significantly improved when the CMWCNT content increases from 0 wt%to 0.2 wt%.The water flux of blend UF membrane with 0.2 wt%CMWCNT is 162.7 L/(m2·h),which is 44.3%higher than that of the pure PVDF membrane.When β-CD content is 0.8 wt%,the retention rate of Congo red by PVDF/CMWCNT/β-CD composite NF membrane reaches 98.7%,which is 28.3%higher than that of single PVA/PEI modified membrane.This research will provide a new idea and simple method for developing novel high-performance composite NF membranes.
      原文链接:
    • NETL
    • NSTL
    • 万方数据

    Fabrication and Mechano-sensing Characteristics of Bending Polypyrrole Actuator

    CHEN JinyouHU Wei
    240-245页
    查看更多>>摘要：To prepare a conductive polymer actuator with decent performance,a self-built experimental platform for the preparation of polypyrrole film is employed.One of the essential goals is to examine the mechanical characteristics of the actuator in the presence of various combinations of process parameters,combined with the orthogonal test method of"four factors and three levels".The bending and sensing characteristics of actuators of various sizes are methodically examined using a self-made bending polypyrrole actuator.The functional relationship between the bending displacement and the output voltage signal is established by studying the characteristics of the actuator sensor subjected to various degrees of bending.The experimental results reveal that the bending displacement of the actuator tip almost exhibits a linear variation as a function of length and width.When the voltage reaches 0.8 V,the bending speed of the actuator tends to be stable.Finally,the mechanical properties of the self-assembled polypyrrole actuator are verified by the design and fabrication of the microgripper.
      原文链接:
    • 万方数据
    • 维普

    Effect of Ti Additions on Mechanical and Thermodynamic Properties of W-Ti Alloys:A First-principles Study

    ZHANG JianNIE WeiHUANG JinZHU Ke...
    246-257页
    查看更多>>摘要：The mechanical and thermodynamic properties of W-Ti alloys(including W15Ti1,W14Ti2,W12Ti4 and W8Ti8 alloys)were investigated by the first-principles approach based on density functional theory.The results indicate that W-Ti alloys except W8Ti8 are thermodynamically stable.The modulus and hardness of W-Ti alloys are smaller than those of pure tungsten and gradually decrease with increasing Ti concentration.However,their B/G ratios and Poisson's ratios exceed those of pure tungsten,suggesting that the introduction of Ti decreases the mechanical strength while enhancing the ductility of W-Ti alloys.The thermal expansion coefficients for W-Ti alloys all surpass those of pure tungsten,indicating that the introduction of titanium exacerbates the thermal expansion behavior of W-Ti alloys.Nevertheless,elevated pressure has the capacity to suppress the thermal expansion tendencies in titanium-doped tungsten alloys.This study offers theoretical insights for the design of nuclear materials by exploring the mechanical and thermodynamic properties of W-Ti alloys.
      原文链接:
    • NETL
    • NSTL
    • 万方数据

    Bulging Performance and Quality Control of Aluminum Alloy Tailor-welded Overlapping Sheets Based on Interface Friction

    GAO TiejunGAO BowenLI WeijieZHANG Jiabin...
    258-264页
    查看更多>>摘要：In order to solve the problem of poor formability caused by different materials and properties in the process of tailor-welded sheets forming,a forming method was proposed to change the stress state of tailor-welded sheets by covering the tailor-welded sheets with better plastic properties overlapping sheets.At the same time,the interface friction effect between the overlapping and tailor-welded sheets was utilized to control the stress magnitude and further improve the formability and quality of the tailor-welded sheets.In this work,the bulging process of the tailor-welded overlapping sheets was taken as the research object.Aluminum alloy tailor-welded overlapping sheets bulging specimens were studied by a combination of finite element analysis and experimental verification.The results show that the appropriate use of interface friction between tailor-welded and overlapping sheets can improve the formability of tailor-welded sheets and control the flow of weld seam to improve the forming quality.When increasing the interface friction coefficient on the side of tailor-welded sheets with higher strength and decreasing that on the side of tailor-welded sheets with lower strength,the deformation of the tailor-welded sheets are more uniform,the offset of the weld seam is minimal,the limit bulging height is maximal,and the forming quality is optimal.
      原文链接:
    • 万方数据
    • 维普

    Fatigue Strength Analysis of Dissimilar Aluminum Alloy TIG Welds

    LIAO XiangyunWANG RuijieLIU GuoshouZHAO Pinglin...
    265-274页
    查看更多>>摘要：The constant amplitude loading fatigue tests were carried out on the 6061/7075 aluminum alloy TIG fillet welded lap specimens in this study,and the weld seam cross-section hardness was measured.The experimental results show that most specimens mainly failed at the 7075 side weld toes even though the base material tensile strength of 7075 is higher than that of 6061.The maximum stress-strain concentration in the two finite element models is located at the 7075 side weld toe,which is basically consistent with the actual fracture location.The weld zone on the 7075 side experiences severe material softening,with a large gradient.However,the Vickers hardness value on the 6061 side negligibly changes and fluctuates around 70 HV.No obvious defects are found on the fatigue fracture,but a large number of secondary cracks appear.Cracks germinate from the weld toe and propagate in the direction of the plate thickness.Weld reinforcement has a serious impact on fatigue life.Fatigue life will decrease exponentially as the weld reinforcement increases under low stress.It is found that the notch stress method can give a better fatigue life prediction for TIG weldments,and the errors of the predicted results are within the range of two factors,while the prediction accuracy decreases under low stress.The equivalent structural stress method can also be used for fatigue life prediction of TIG weldments,but the errors of prediction results are within the range of three factors,and the accuracy decreases under high stress.
      原文链接:
    • 万方数据
    • 维普

    The Mechanism of Heating Rate on the Secondary Recrystallization Evolution in Grain Oriented Silicon Steel

    GAO QianLI JunWANG XianhuiCAO Laifu...
    275-282页
    查看更多>>摘要：Grain-oriented silicon steels were prepared at different heating rates during high temperature annealing,in which the evolution of magnetic properties,grain orientations and precipitates were studied.To illustrate the Zener factor,the diameter and number density of precipitates of interrupted testing samples were statistically calculated.The effect of precipitate ripening on the Goss texture and magnetic property was investigated.Data indicated that the trend of Zener factor was similar under different heating rates,first increasing and then decreasing,and that the precipitate maturing was greatly inhibited as the heating rate increased.Secondary recrystallization was developed at the temperature of 1 010℃when a heating rate of 5℃/h was used,resulting in Goss,Brass and{110}<227>oriented grains growing abnormally and a magnetic induction intensity of 1.90T.Furthermore,increasing the heating rate to 20℃/h would inhibit the development of undesirable oriented grains and obtain a sharp Goss texture.However,when the heating rate was extremely fast,such as 40℃/h,poor secondary recrystallization was developed with many island grains,corresponding to a decrease in magnetic induction intensity to 1.87 T.At a suitable heating rate of 20℃/h,the sharpest Goss texture and the highest magnetic induction of 1.94 T with an onset secondary recrystallization temperature of 1 020℃were found among the experimental variables in this study.The heating rate affected the initial temperature of secondary recrystallization by controlling the maturation of precipitates,leading to the deviation and dispersion of Goss texture,thereby reducing the magnetic properties.
      原文链接:
    • 万方数据
    • 维普

    Microstructure and Wear/corrosion Resistance of Stainless Steel Laser-alloyed with Mn+W2C,Mn+NiWC and Mn+SiC

    ZHOU RuiDIAO XiaogangSUN Yixin
    283-294页
    查看更多>>摘要：In-situ formed high Mn steel coating reinforced by carbides was formed by laser surface alloying(LSA).Laser alloyed layers on 1Cr18Ni9Ti steel with Mn+W2C(specimen A),Mn+NiWC(specimen B)and Mn+SiC(specimen C)powders were fabricated to improve the wear and corrosion behavior of 1Cr18Ni9Ti steel blades in high speed mixers.Microstructure evolution,phases,element distribution,microhardness,wear and corrosion behavior of the laser alloyed layers were investigated.Results indicated that high Mn steel matrix composites with undissolved W2C,WC and other in-situ formed carbides were formed by LSA with Mn+W2C and Mn+NiWC while SiC totally dissolved into the high Mn matrix when adding Mn+SiC.Ni as the binding phase in Ni-WC powder decreased the crack sensitivity of the alloyed layer as compared with the addition of W2C powder.An improvement in average microhardness was achieved in the matrix in specimen A,B and C,with the value of 615,602 and 277 HV0.5,while that of the substrate was 212 HV0.5.The increase of microhardness,wear and corrosion resistance is highly corelated to microstructure,formed phases,type and content of carbides,micro-hardness and toughness of the alloyed layers.
      原文链接:
    • NETL
    • NSTL
    • 万方数据