Journal of Materials Research and Technology-Jmr&t最新文献

{"title":"Effect of residual nanotwin on electromigration in copper lines with bamboo-like structures","authors":"Yi-Quan Lin,&nbsp;Yu-Wen Hung,&nbsp;Dinh-Phuc Tran,&nbsp;Chih Chen","doi":"10.1016/j.jmrt.2025.06.076","DOIUrl":"10.1016/j.jmrt.2025.06.076","url":null,"abstract":"<div><div>Electromigration (EM) poses significant reliability challenges, especially as the line/space (L/S) of Cu redistribution lines (RDLs) continues to scale down. This study investigates the EM lifetime reliability of bamboo-like (BL) structure Cu lines with and without nanotwins. EM tests were conducted under a high current density (1.0 × 10⁶ A/cm²) at a low temperature (150 °C) in ambient air. The results show that BL nanotwinned Cu (BL-NT-Cu) lines exhibited densely packed twin boundaries (twin spacing = 108 nm), a high fraction of (111)-oriented grains (64 %), and a lower oxidation rate (0.04 nm/h) compared to BL-Cu lines, which contributed to enhanced EM resistance. It was found that BL-NT-Cu lines had a significantly longer EM lifetime (T₅₀ = 3551 h) than BL-Cu lines (T₅₀ = 779 h). The study highlights the potential of the BL-NT-Cu structural design in improving the EM reliability of fine L/S Cu-RDLs, offering a viable strategy for developing high-density, high-performance advanced packaging applications.</div></div>","PeriodicalId":54332,"journal":{"name":"Journal of Materials Research and Technology-Jmr&t","volume":"37 ","pages":"Pages 921-928"},"PeriodicalIF":6.2,"publicationDate":"2025-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144272318","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Study on the small strain dynamic characteristics and microscopic mechanism of nano-silica modified lime soil","authors":"Wang Wei ,&nbsp;Wu Hongxiang ,&nbsp;Feng Tianhong ,&nbsp;Jiang Ping ,&nbsp;Sun Miaomiao ,&nbsp;Yang Song ,&nbsp;Liu Yong ,&nbsp;Li Na ,&nbsp;Song Yifang","doi":"10.1016/j.jmrt.2025.06.055","DOIUrl":"10.1016/j.jmrt.2025.06.055","url":null,"abstract":"<div><div>Nano-silica (NS) possesses the characteristics of high specific surface area, high chemical activity and nanoscale dimensions. Incorporating an appropriate amount of NS into lime soil not only enhances its mechanical properties, but also contributes to resource conservation and environmental protection. This study investigates the small strain dynamic characteristics of nano-silica modified lime soil (NSLS) through resonant column test and examines its microscopic mechanism and pore changes by SEM, EDS, XRD, FTIR and MIP. The research findings indicate that with increasing confining pressure and curing age, the dynamic shear modulus G of NSLS gradually increases, while the damping ratio D gradually decreases. Furthermore, the fitting results from the Hardin-Drnevich model demonstrate that under different confining pressures, adding 0.4 % NS to lime soil yields the most significant improvement in stiffness, with the maximum dynamic shear modulus G_max increasing by 34 %–45 % and the maximum damping ratio D_max decreasing by 20 %–30 %. Additionally, SEM, EDS, XRD, FTIR and MIP test results reveal that NS promotes the generation of more hydration products in NSLS, which helps to reduce its porosity. In summary, this study illustrates how NS can enhance both mechanical properties and microstructure of lime soil while providing scientific evidence for its application in practical engineering.</div></div>","PeriodicalId":54332,"journal":{"name":"Journal of Materials Research and Technology-Jmr&t","volume":"37 ","pages":"Pages 851-869"},"PeriodicalIF":6.2,"publicationDate":"2025-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144264026","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Axial creep behavior of FeCrAl nuclear cladding tubes at a temperature of 600 °C","authors":"Yuntao Zhong ,&nbsp;Peinan Du ,&nbsp;Yong Chen ,&nbsp;Jingze Zhou ,&nbsp;Huan Sheng Lai ,&nbsp;Ruiqian Zhang","doi":"10.1016/j.jmrt.2025.06.058","DOIUrl":"10.1016/j.jmrt.2025.06.058","url":null,"abstract":"<div><div>The impacts of axial creep behavior and alloy composition on the design of safe and effective FeCrAl nuclear fuel cladding tubes remain inadequately investigated. The present work addresses these issues by evaluating the axial creep behavior of FeCrAl nuclear fuel cladding tubes in air at a temperature of 600 °C. While the creep test results represent an expected steady state creep behavior under low applied stress, the tubes are mainly in a tertiary creep state at high stress levels. Therefore, the creep test results in the steady state creep stage are fit using a power-law creep constitutive model and the Kachanov-Rabotnov model is applied for the tertiary creep stage. Comparisons between the creep test results obtained for alloys with a variety of compositions and detailed microstructural analysis of the FeCrAl nuclear fuel cladding tube specimens demonstrate that composite Laves phase particles containing Mo, Nb, and Ta are key factors generally in improving the creep properties of Fe-based alloy cladding tube specimens because the composite particles effectively restrict the motion of dislocations. However, the existence of relatively coarse secondary phase particles contributes to the formation of voids via two distinct mechanisms. Therefore, the secondary phases generated during tube fabrication must be of uniform particle sizes and be uniformly dispersed within the alloy matrix to improve creep properties while minimizing void formation.</div></div>","PeriodicalId":54332,"journal":{"name":"Journal of Materials Research and Technology-Jmr&t","volume":"37 ","pages":"Pages 841-850"},"PeriodicalIF":6.2,"publicationDate":"2025-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144264028","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Enhancing the high-frequency performance of FeSiAl/WS2 composites with small particle sizes","authors":"Shoujin Zhu ,&nbsp;Weibing Wu ,&nbsp;Songlin Zhou ,&nbsp;Zongyang Zhang ,&nbsp;Shuangjiu Feng ,&nbsp;Xian Song Liu ,&nbsp;Xucai Kan","doi":"10.1016/j.jmrt.2025.06.075","DOIUrl":"10.1016/j.jmrt.2025.06.075","url":null,"abstract":"<div><div>This study utilized FeSiAl with 200- and 600-mesh sizes as the raw material and a layered 2D semiconducting material (WS₂) as an insulation coating agent. FeSiAl/2.25 wt%WS₂ composites were developed through ultrasonic mixing, and the influence of the particle size on their morphology and magnetic properties was systematically investigated. Results obtained from scanning electron microscopy revealed a uniform coating of the 2D layered WS₂ on the surface of the FeSiAl particles, thus forming an efficient inorganic coating layer. Composite permeability experiments indicated that reducing the FeSiAl particle size not only enhanced the relaxation frequency(<em>f</em>_r) of the FeSiAl/2.25 wt%WS₂ composites but also lowered the eddy current losses, making these composites highly suitable for high-frequency operation and applications. Sample B exhibited lower magnetic loss than Sample A, with a magnetic loss equal to 367 kW/m³ at 1 MHz and 20 mT.</div></div>","PeriodicalId":54332,"journal":{"name":"Journal of Materials Research and Technology-Jmr&t","volume":"37 ","pages":"Pages 977-982"},"PeriodicalIF":6.2,"publicationDate":"2025-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144271918","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Tailoring thermal insulation in carbon fiber reinforced composites: Pore-preserved aerogels and thermoplastic matrix engineering","authors":"Woo Seong Choi ,&nbsp;Gyun Young Yoo ,&nbsp;Ki Hoon Kim ,&nbsp;Sung Jin Kim ,&nbsp;Yong Chae Jung ,&nbsp;Seong Yun Kim","doi":"10.1016/j.jmrt.2025.06.067","DOIUrl":"10.1016/j.jmrt.2025.06.067","url":null,"abstract":"<div><div>There is an increasing demand for battery pack housing materials that offer lightweight, mechanical, and thermal insulation properties to prevent thermal runaway caused by external mechanical and/or thermal stimuli. In this study, by applying a polypropylene (PP) chain-length control strategy to impregnate micropores between carbon fibers (CFs) and to maintain nanopores within the incorporated silica aerogel (SA), a CF reinforced thermoplastic (CFRTP) with superior thermal insulation properties was proposed. The PP chain length, used as matrix, was identified as the most important structural factor determining the extent of CF impregnation and preservation of the SA nanopore structure. Additionally, the optimized CFRTP, in which SA nanopores were preserved and CF was well-impregnated, exhibited excellent thermal insulation with a value of 0.045 W/m·K. The excellent thermal insulation properties of the proposed CFRTP make it a promising candidate for applications in electric vehicle battery pack enclosures.</div></div>","PeriodicalId":54332,"journal":{"name":"Journal of Materials Research and Technology-Jmr&t","volume":"37 ","pages":"Pages 893-902"},"PeriodicalIF":6.2,"publicationDate":"2025-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144271916","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Interface evolution and mechanical properties of 17-4 PH/316L dissimilar stainless steel by laser forming repairing","authors":"Yuhan Wu ,&nbsp;Haiou Yang ,&nbsp;Xiaolei Ma ,&nbsp;Jingjun He ,&nbsp;Xin Lin","doi":"10.1016/j.jmrt.2025.06.074","DOIUrl":"10.1016/j.jmrt.2025.06.074","url":null,"abstract":"<div><div>Laser forming repairing technology has been widely used in the industrial field. However, there are limited studies on the interface evolution in dissimilar materials by laser repair technology. This study uses laser solid forming technology to deposit 17-4 PH martensitic stainless steel onto a 316L austenitic stainless steel substrate. The heat-affected zone (HAZ) and the compositionally diluted region were analyzed as key repair interface areas. The effects of laser power on phase components and elemental macro-segregation in the interface region were investigated, and interfacial bond strength was evaluated through a shear experiment. The experimental results reveal that rapid solidification and substrate dilution lead to the formation of distinct interface regions: the unmixed zone (UMZ), visible streak zone (VSZ), and composition mixed zone (CMZ), with epitaxial grain growth at the interface. As laser power increases, shear stress initially rises before declining. This behavior is attributed to melt pool convection, at optimal laser power, which enhances dilution and improves interfacial bonding. These findings provide valuable insights into the laser repair of dissimilar stainless steels, offering guidance for optimizing repair parameters to enhance interface performance.</div></div>","PeriodicalId":54332,"journal":{"name":"Journal of Materials Research and Technology-Jmr&t","volume":"37 ","pages":"Pages 773-784"},"PeriodicalIF":6.2,"publicationDate":"2025-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144264015","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A combined experimental and numerical assessment of the role of microsegregation and phase formation on hot cracking susceptibility in laser powder bed fusion processed CM247LC","authors":"Philipp Stich ,&nbsp;Markus Apel ,&nbsp;Mustafa Megahed ,&nbsp;Ludo Bautmans ,&nbsp;Pere Barriobero Vila ,&nbsp;Marcus Hans ,&nbsp;Thomas Weirich E. ,&nbsp;Klaus Büßenschütt ,&nbsp;Johannes Henrich Schleifenbaum ,&nbsp;Christian Haase","doi":"10.1016/j.jmrt.2025.06.040","DOIUrl":"10.1016/j.jmrt.2025.06.040","url":null,"abstract":"<div><div>For many high-performance alloys originally developed for the casting route, hot cracking is a serious problem in the Laser Powder Bed Fusion (PBF-LB/M) process and limits the use of e.g. high-γ′ nickel-based alloys such as CM247LC in additive manufacturing. In this work, we investigate the relationship between PBF-LB/M processing parameters and the solidification path, i.e. phase formation and microsegregation, and its potential impact on hot cracking for the high-γ′ alloy CM247LC. We combined experimental microstructural analysis using scanning and transmission electron microscopy, atom probe tomography and diffraction techniques with multiphase-field simulations on μm scale. Process simulations at mesoscale of the melt pool provide the link between the process conditions and the thermal boundary conditions for the microstructural simulations. The study confirms the appearance of carbides, borides and γ′-precipitates in the as-solidified microstructure. The quantity and particle size of these phases as observed in the experimental samples, are in qualitative agreement with the simulation results. Therefore, the simulations can be used to elucidate and quantify the differences in the solidification path for different thermal process conditions. Although the comparison of samples processed with high energy density (cooling rate 65,000 K/s) with those processed with low energy density (cooling rate: 570,000 K/s) show large differences in the crack density observed in the experiments, the microstructural differences and the phase formation at the dendritic scale do not show any remarkable qualitative or quantitative differences. The correlation between processing conditions, microstructure evolution and crack formation is critically discussed and differences to the current understanding presented in existing literature are identified.</div></div>","PeriodicalId":54332,"journal":{"name":"Journal of Materials Research and Technology-Jmr&t","volume":"37 ","pages":"Pages 671-686"},"PeriodicalIF":6.2,"publicationDate":"2025-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144253301","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Synergistic enhancement of mechanical and tribological properties in WC-reinforced 316L stainless steel matrix composite fabricated by laser powder bed fusion","authors":"Jianye Liu ,&nbsp;Zhicong Zhao ,&nbsp;Dongyun Rao ,&nbsp;Yang Yang ,&nbsp;Lijuan Zheng ,&nbsp;Chengyong Wang ,&nbsp;Pu Deng ,&nbsp;Liuhui Niu ,&nbsp;Zhenghua Huang","doi":"10.1016/j.jmrt.2025.06.046","DOIUrl":"10.1016/j.jmrt.2025.06.046","url":null,"abstract":"<div><div>Austenitic 316L stainless steel, renowned for its excellent toughness and corrosion resistance, is widely used in aerospace, precision molds, and automotive industries. However, its limited strength at both room and high temperatures, coupled with poor tribological properties, restricts broader applications. To address these limitations, this study has fabricated a novel stainless steel matrix composite, 3 %WC/316L, with excellent strength-toughness, heat-resistance, and tribological properties, leveraging the inherent advantages of laser powder bed fusion technology through synergistic strengthening mechanisms: fine grain strengthening, particle reinforcement, and precipitation hardening. Following aging treatment at 800 °C for 2 h, the composite comprises a columnar grain structure with uniformly dispersed partially-melted spherical WC particles (∼1 vol%). A well-bonded diffusion zone with a width of 1∼2 μm forms between the unmelted WC cores and the matrix. Crucially, abundant submicron-scale M₂₃C₆ carbides (100–400 nm) precipitate along grain boundaries and within the columnar grains adjacent to the particles. The composite demonstrates superior mechanical properties: at room temperature, the ultimate tensile strength (UTS), yield strength (YS), elongation to fracture (EL), and impact toughness (α_kv) can reach 802 MPa, 554 MPa, 30.5 %, and 55.5 J/cm², respectively; at 400 °C, UTS, YS, and EL still remain at 616 MPa, 370 MPa, and 20.8 %, respectively. Furthermore, the tribological properties are significantly enhanced: at room-temperature, hardness reaches 18.9 HRC, with the average coefficient of friction (COF) and volumetric wear rate (<em>W</em>_r) reduced to 0.6212 and 50.3 × 10⁻⁶ mm³/(N·m), respectively; at 400 °C, COF and <em>W</em>_r further decrease to 0.5291 and 43.6 × 10⁻⁶ mm³/(N·m), respectively.</div></div>","PeriodicalId":54332,"journal":{"name":"Journal of Materials Research and Technology-Jmr&t","volume":"37 ","pages":"Pages 617-628"},"PeriodicalIF":6.2,"publicationDate":"2025-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144253306","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Analysis of texture evolution and variant selection during α→β→α phase transformation of TA1 pure titanium sheet","authors":"Lin Peng ,&nbsp;Zhouyang Liu ,&nbsp;Baifeng Luan","doi":"10.1016/j.jmrt.2025.06.060","DOIUrl":"10.1016/j.jmrt.2025.06.060","url":null,"abstract":"<div><div>The texture of titanium and titanium alloy has an important influence on its properties, and it is difficult to eliminate the strong bimodal texture of titanium and titanium alloy by traditional rolling process and recrystallization annealing. The texture distribution of titanium and titanium alloy can be changed theoretically by α→β→α phase transformation annealing, but the texture strengthening phenomenon is usually caused by texture memory effect. In this study, The TA1 sheet with 80 % cold rolling deformation was annealed at 500 °C for 2 h and 850 °C for 2 h under different recrystallization degrees, and then subjected to a second annealing at 1100 °C for 10 min. XRD, EBSD and confocal laser microscopy were used to observe the microstructure and texture of TA1 pure titanium sheets and the migration and merging of β phase at high temperature. Furthermore, an extended annealing treatment at 1100 °C for 3 h was conducted for the sheets annealed at 500 °C for 2 h it was found that α grains with different initial textures produce different β grain orientation during α→β phase transformation, which alters the subsequent β grain texture and results in different α-phase variant orientations upon β→α cooling., and the texture strengthening effect of 500°C-2h annealing is significantly inhibited.</div></div>","PeriodicalId":54332,"journal":{"name":"Journal of Materials Research and Technology-Jmr&t","volume":"37 ","pages":"Pages 1051-1060"},"PeriodicalIF":6.2,"publicationDate":"2025-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144279602","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effects of silica-fume surface modification on polypropylene fiber-matrix interaction in cementitious composites","authors":"Jaykumar Viradiya ,&nbsp;Rishi Gupta","doi":"10.1016/j.jmrt.2025.06.009","DOIUrl":"10.1016/j.jmrt.2025.06.009","url":null,"abstract":"<div><div>The fiber-matrix interface plays a pivotal role in determining the mechanical performance of fiber-reinforced composites. However, achieving optimal interfacial bonding remains challenging, particularly for synthetic fibers like polypropylene (PP), due to their inherently smooth surface and low chemical affinity to cementitious matrices. To further improve PP fiber-matrix interface properties, the current study evaluates the effectiveness of three novel surface treatments using silica-fume surface coating methods developed at the University of Victoria—adhesive dry coating, adhesive wet coating, and a non-adhesive heat coating. The impact of these surface modifications on fiber-matrix adhesion was assessed through contact angle measurements, scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDS/EDX), and micro-hardness testing. Mechanical performance was further evaluated using single-fiber pull-out, flexural, and compressive strength tests. SEM, EDX, and micro-hardness results confirmed that silica-fume from the coatings reacts with portlandite, significantly improving the interfacial transition zone (ITZ) within the first 40 μm from the fiber edge. Samples treated with adhesive dry coating and adhesive wet coating exhibited 96 % and 31 % higher overall energy absorption in pull-out tests, respectively, compared to untreated fibers. Furthermore, all coating methods nearly doubled post-crack energy absorption in flexural tests. Samples containing fibers treated with non-adhesive heat coating demonstrated the most pronounced effect among the surface treatments, resulting in 857 % higher energy absorption (compared to untreated fiber samples) under pull-out loading, leading to fiber fracture failure. In these samples, the failure mechanism involved post-peak softening followed by strain hardening to a perfectly plastic response until fiber fracture. Based on mechanical and microstructural evaluations of the present study, non-adhesive heat coating method emerged as the most effective surface treatment, demonstrating superior fiber-matrix bonding and enhanced composite performance.</div></div>","PeriodicalId":54332,"journal":{"name":"Journal of Materials Research and Technology-Jmr&t","volume":"37 ","pages":"Pages 823-840"},"PeriodicalIF":6.2,"publicationDate":"2025-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144263519","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}