Journal of Materials Science & Technology最新文献_第9页

Inhibiting microstructure segregation and softening in a 700 MPa grade Al-Zn-Mg-Cu alloy by a novel underwater-assisted dual-rotation friction stir welding method 水下辅助双旋转搅拌摩擦焊抑制700 MPa级Al-Zn-Mg-Cu合金组织偏析和软化

IF 10.9 1区材料科学

Journal of Materials Science & Technology Pub Date : 2025-09-23 DOI: 10.1016/j.jmst.2025.08.052

Siyue Fan, Zhenhua Li, Beibei Wang, Peng Xue, Zhen Zhang, Qingwei Jiang, Hao Zhang, Lihui Wu, Fengchao Liu, Dingrui Ni, Bolv Xiao, Zongyi Ma

{"title":"Inhibiting microstructure segregation and softening in a 700 MPa grade Al-Zn-Mg-Cu alloy by a novel underwater-assisted dual-rotation friction stir welding method","authors":"Siyue Fan, Zhenhua Li, Beibei Wang, Peng Xue, Zhen Zhang, Qingwei Jiang, Hao Zhang, Lihui Wu, Fengchao Liu, Dingrui Ni, Bolv Xiao, Zongyi Ma","doi":"10.1016/j.jmst.2025.08.052","DOIUrl":"https://doi.org/10.1016/j.jmst.2025.08.052","url":null,"abstract":"700 MPa grade ultra-high strength Al-Zn-Mg-Cu alloys containing over 10 wt.% Zn exhibit significant potential in lightweight materials design, but its weldability remains a major obstacle in practical applications, even employing solid-state friction stir welding (FSW). The substantial increase in Zn content not only reduces the material's plastic deformation capability but also promotes distinct microstructural segregation during FSW. Here, we report superior weld appearance and enhanced joint strength achieved in a 700 MPa grade Al-Zn-Mg-Cu alloy using an innovative underwater-assisted dual-rotation friction stir welding (UWDR-FSW) method. Excellent weld appearance and homogeneous microstructure were obtained by applying an extremely low shoulder rotation rate of 200 rpm combined with water cooling due to the elimination of overheating. High solute solubility and fine recrystallization grains improve the microhardness values of the nugget zone (NZ). Conversely, the dramatically reduced peak temperature and increased cooling rate suppressed precipitate coarsening in the heat-affected zone (HAZ), resulting in a higher microhardness value than even that of the NZ. This new UWDR-FSW process successfully eliminated the microstructural segregation and traditional low-hardness zones in the HAZ, significantly improving joint strength to 514 MPa compared to the conventional FSW joint (414 MPa). This work contributes a novel approach for welding ultra-high-strength aluminum alloys with high alloying content, supported by comprehensive experimental data and theoretical analysis.","PeriodicalId":16154,"journal":{"name":"Journal of Materials Science & Technology","volume":"40 1","pages":""},"PeriodicalIF":10.9,"publicationDate":"2025-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145127777","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Carbon-nitride based advance materials for energy conversion and storage: Recent advances, current challenges, prospects and environmental consequences 用于能量转换和储存的碳氮基先进材料：最新进展、当前挑战、前景和环境后果

IF 10.9 1区材料科学

Journal of Materials Science & Technology Pub Date : 2025-09-22 DOI: 10.1016/j.jmst.2025.09.009

Zeeshan Ajmal, Abdul Qadeer, Asif Hayat, Mohammed M Fadhali, M. Abubaker Khan, Asif Mahmood, Essam H. Ibrahim, Mohd Imran, M. Saif Ur Rehman, Safdar Bashir, Yubo Yang, Xia Jiang, Shuhang Wang

{"title":"Carbon-nitride based advance materials for energy conversion and storage: Recent advances, current challenges, prospects and environmental consequences","authors":"Zeeshan Ajmal, Abdul Qadeer, Asif Hayat, Mohammed M Fadhali, M. Abubaker Khan, Asif Mahmood, Essam H. Ibrahim, Mohd Imran, M. Saif Ur Rehman, Safdar Bashir, Yubo Yang, Xia Jiang, Shuhang Wang","doi":"10.1016/j.jmst.2025.09.009","DOIUrl":"https://doi.org/10.1016/j.jmst.2025.09.009","url":null,"abstract":"Carbon nitride (g-C3N4) as a polymeric semiconductor is extensively investigated as a potential next-generation material in the field of catalysis, optoelectronics, energy conversion and storage, thanks to its high physicochemical and thermal stability along with a suitable bandgap energy of 2.6–2.7 eV, as a low-cost material. However, some major bottlenecks, like low surface area, serious irretrievable capacity forfeiture and deprived electrical conductivity, restrict its potential application in energy storage applications. However, several methods of material structures properties to improve its activity with unique morphological characteristics are not sufficiently summarized in the literature yet. Therefore, the present review article is intended to compile data regarding key methods to prepare g-C3N4 with different morphological characteristics in detail. Moreover, this review systematically discusses the use of g-C3N4 with the latest information for energy conversion and storage applications, especially photocatalytic hydrogen production (PHP), photocatalytic carbon reduction (PCR), different batteries, supercapacitors (SCs), etc., which has not been sufficiently summarized in the literature yet. Finally, key challenges and prospects to prepare properly tuned g-C3N4 for energy conversion and storage applications with its environmental consequences are presented in detail.","PeriodicalId":16154,"journal":{"name":"Journal of Materials Science & Technology","volume":"78 1","pages":""},"PeriodicalIF":10.9,"publicationDate":"2025-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145103712","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Spectrum-to-thermo defense: Te-NixS6@Diatomite hierarchical networks simultaneously mastering microwave absorption, corrosion resistance, antibacterial activity, and thermal insulation 光谱到热防御：Te-NixS6@Diatomite分层网络同时掌握微波吸收，耐腐蚀，抗菌活性，和保温

IF 10.9 1区材料科学

Journal of Materials Science & Technology Pub Date : 2025-09-22 DOI: 10.1016/j.jmst.2025.08.051

Dashuang Wang, Xinfang Zhang, Zhilan Du, Xiaobin Gong, Yuxin Zhang

{"title":"Spectrum-to-thermo defense: Te-NixS6@Diatomite hierarchical networks simultaneously mastering microwave absorption, corrosion resistance, antibacterial activity, and thermal insulation","authors":"Dashuang Wang, Xinfang Zhang, Zhilan Du, Xiaobin Gong, Yuxin Zhang","doi":"10.1016/j.jmst.2025.08.051","DOIUrl":"https://doi.org/10.1016/j.jmst.2025.08.051","url":null,"abstract":"Doping with non-metallic elements represents a highly promising strategy for tailoring the dielectric properties of composite materials. Owing to its merits such as high structural stability and excellent process reproducibility, this approach has garnered significant attention in the field of electromagnetic wave absorption. In this study, tellurium doping was introduced into a NixS6@De composite with a hierarchical pore structure, inducing lattice distortion and creating abundant defects, thereby promoting the formation of interfacial dipoles. As a result, the obtained material exhibits outstanding absorption performance across microwave (achieving a minimum reflection loss of −43.54 dB at 1.7 mm thickness and an effective absorption bandwidth of 5.19 GHz), ultraviolet, and infrared spectra (with a low average reflectivity of ∼4%). More importantly, the synergistically engineered defect configuration effectively impedes the penetration of corrosive species, enhances the electrochemical passivation effect, and simultaneously enables a 100% sterilization inhibition rate against sulfate-reducing bacteria. Furthermore, the composite demonstrates remarkable thermal stability, maintaining performance above 300 °C, and exhibits anisotropic heat insulation properties. This multi-scale defect engineering paradigm offers a universal design strategy for developing advanced materials integrating efficient electromagnetic attenuation, corrosion resistance, antibacterial activity, and thermal variability.","PeriodicalId":16154,"journal":{"name":"Journal of Materials Science & Technology","volume":"39 1","pages":""},"PeriodicalIF":10.9,"publicationDate":"2025-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145103698","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

The mechanism of superior strength-ductility synergy in ultrafine-grained (FeCoNiV)93Al7 dual-phase high-entropy alloy via in-situ techniques 原位技术研究超细晶（FeCoNiV）93Al7双相高熵合金强塑性协同作用机理

IF 10.9 1区材料科学

Journal of Materials Science & Technology Pub Date : 2025-09-21 DOI: 10.1016/j.jmst.2025.07.073

Zhenhua Ye, Chuanwei Li, Yiwei Wang, Quanfeng He, Jianfeng Gu

{"title":"The mechanism of superior strength-ductility synergy in ultrafine-grained (FeCoNiV)93Al7 dual-phase high-entropy alloy via in-situ techniques","authors":"Zhenhua Ye, Chuanwei Li, Yiwei Wang, Quanfeng He, Jianfeng Gu","doi":"10.1016/j.jmst.2025.07.073","DOIUrl":"https://doi.org/10.1016/j.jmst.2025.07.073","url":null,"abstract":"Dual-phase high-entropy alloys (HEAs), characterized by a soft matrix and hard reinforcing phase, hold promise for exceptional mechanical properties, yet struggle to balance strength and plasticity due to the reinforcing phases enhancing strength while significantly reducing ductility. In this study, we engineered the coupling of ordered and heterogeneous structures within an ultrafine-grained dual-phase (FeCoNiV)93Al7 HEA, resulting in an outstanding synergy of strength and ductility, with a yield strength of 1260 MPa, ultimate tensile strength of 1651 MPa, and elongation of 18%. Employing advanced in-situ techniques (electron backscatter diffraction, digital image correlation, and synchrotron X-ray diffraction), we systematically investigated the deformation mechanisms. Our findings demonstrate that the mechanical properties are governed by a complex interplay of ordering treatment, grain size, phase volume fraction, and phase morphology. In the initial deformation stage, the yielding of the L12 phase triggers stress relaxation and subsequent stress transfer to the harder B2 phase, which significantly enhances yield strength and work-hardening rate. Notably, the L12 phase in this alloy exhibits exceptional work hardening capability, but as strain increased, load progressively transferred to the initially softer yet strain-hardening L12 phase. The dynamic stress redistribution between the two phases effectively retards the onset of alloy failure. To optimize mechanical performance, maintaining a moderate B2 phase volume fraction and minimizing coarse B2 grains through processing techniques is critical. This in-depth understanding of deformation and fracture mechanisms in dual-phase HEAs provides valuable insights for advancing alloy design and optimization strategies.","PeriodicalId":16154,"journal":{"name":"Journal of Materials Science & Technology","volume":"31 1","pages":""},"PeriodicalIF":10.9,"publicationDate":"2025-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145093656","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Failure mechanisms in quenching and partitioning (Q&P) steel under varying stress states 不同应力状态下淬火和分配（Q&P）钢的失效机制

IF 10.9 1区材料科学

Journal of Materials Science & Technology Pub Date : 2025-09-20 DOI: 10.1016/j.jmst.2025.09.010

Rongfei Juan, Junhe Lian

{"title":"Failure mechanisms in quenching and partitioning (Q&P) steel under varying stress states","authors":"Rongfei Juan, Junhe Lian","doi":"10.1016/j.jmst.2025.09.010","DOIUrl":"https://doi.org/10.1016/j.jmst.2025.09.010","url":null,"abstract":"Quenching and partitioning (Q&P) steels represent a key advancement in third-generation advanced high-strength steels (AHSS), offering an exceptional balance between strength and ductility due to their complex multiphase microstructures. However, their application in crash-critical and formability-sensitive components remains limited by an incomplete understanding of their fracture behavior under complex stress states. Therefore, this study aims to systematically investigate the failure mechanisms of Q&P 1000 steel across a wide range of stress states from shear to uniaxial and plane-strain tension using tensile specimens with different geometries. By combining macroscopic mechanical testing with detailed microstructural characterization via scanning electron microscopy (SEM) and electron backscatter diffraction (EBSD), we reveal a transition from ductile fracture, governed by void nucleation and coalescence, to cleavage-dominated fracture under increasing triaxiality. Remarkably, transgranular cleavage fracture features were observed for the first time in Q&P steels even after substantial plastic deformation, which confirms it to be also a failure mechanism of ductile fracture in addition to brittle fracture. Two major damage mechanisms responsible for the failure mode transition were revealed: (i) phase boundary debonding and (ii) martensite cleavage fracture. A stress-based cleavage fracture criterion with a critical stress triaxiality, regulated by the cleavage fracture stress and strain hardening behavior, can well explain and quantify this transition behavior. These results provide new insights into stress-state-dependent failure in Q&P steels and offer guidance for their safe and optimized application in forming and crash-relevant components.","PeriodicalId":16154,"journal":{"name":"Journal of Materials Science & Technology","volume":"35 1","pages":""},"PeriodicalIF":10.9,"publicationDate":"2025-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145089070","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Rapid and scalable combustion synthesis of (Mo2/3Y1/3)2AlC i-MAX as the precursor for vacancy-ordered MXene （Mo2/3Y1/3）2AlC i-MAX作为空位有序MXene前驱体的快速可扩展燃烧合成

IF 10.9 1区材料科学

Journal of Materials Science & Technology Pub Date : 2025-09-20 DOI: 10.1016/j.jmst.2025.09.014

Ali Saffar Shamshirgar, Roman Ivanov, Sofiya Aydinyan, Sohan Ghosh, Florian Chabanais, Rodrigo M. Ronchi, Joseph Halim, Anna Elsukova, Leiqiang Qin, Khachik Nazaretyan, Marieta Zakaryan, Suren Kharatyan, Per O.Å. Persson, Irina Hussainova, Johanna Rosen

{"title":"Rapid and scalable combustion synthesis of (Mo2/3Y1/3)2AlC i-MAX as the precursor for vacancy-ordered MXene","authors":"Ali Saffar Shamshirgar, Roman Ivanov, Sofiya Aydinyan, Sohan Ghosh, Florian Chabanais, Rodrigo M. Ronchi, Joseph Halim, Anna Elsukova, Leiqiang Qin, Khachik Nazaretyan, Marieta Zakaryan, Suren Kharatyan, Per O.Å. Persson, Irina Hussainova, Johanna Rosen","doi":"10.1016/j.jmst.2025.09.014","DOIUrl":"https://doi.org/10.1016/j.jmst.2025.09.014","url":null,"abstract":"For MXenes to be viable in commercial and industrial applications, their production must rely on processes that are energy-efficient, environmentally sustainable, and scalable. A critical factor influencing this viability is the synthesis route of the parent MAX phase. In this study, we report a novel and rapid approach for synthesizing a chemically ordered MAX phase (i-MAX), specifically the in-plane ordered (Mo2/3Y1/3)2AlC, using self-propagating high-temperature synthesis (SHS) completed in one minute. The target MAX phase yield was estimated using Rietveld refinement to be 73.6% with the main impurity phases identified as Mo3Al2C and YF3. Thermodynamic calculations combined with experimental characterizations indicate that the use of an aluminum–yttrium master alloy played a pivotal role in achieving high synthesis yield by facilitating a sequence of intermediate phase transformations that enhance reaction kinetics and i-MAX formation. This method involves the utilization of Poly(tetrafluoroethylene)—(C2F4)n as a promoter, which enables the formation of volatile fluorides or fluorine-containing intermediates, making the reaction self-sustaining. Etching and delamination of the SHS-produced i-MAX phase yielded a vacancy-ordered MXene with the formula Mo4/3CTx, with a yield value twice that obtained using the conventional MAX-phase parent material preparation route. This work demonstrates the method’s effectiveness in achieving rapid, straightforward, and energy-efficient synthesis of a diverse range of MAX and i-MAX phases, thereby paving the way for scalable and efficient MXene production.","PeriodicalId":16154,"journal":{"name":"Journal of Materials Science & Technology","volume":"154 1","pages":""},"PeriodicalIF":10.9,"publicationDate":"2025-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145089071","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

High-stability organic transistors based on sandwich-structured composite dielectric layers 基于三明治结构复合介电层的高稳定性有机晶体管

IF 10.9 1区材料科学

Journal of Materials Science & Technology Pub Date : 2025-09-20 DOI: 10.1016/j.jmst.2025.08.050

Yanping Ni, Guoqiang Ren, Xiaoli Zhao, Pengbo Xi, Yao Fu, Guodong Zhao, Mingxin Zhang, Baoying Sun, Junru Zhang, Ning He, Jingchun Sun, Yutong Xie, Xiang Song, Yanhong Tong, Qingxin Tang, Yichun Liu

{"title":"High-stability organic transistors based on sandwich-structured composite dielectric layers","authors":"Yanping Ni, Guoqiang Ren, Xiaoli Zhao, Pengbo Xi, Yao Fu, Guodong Zhao, Mingxin Zhang, Baoying Sun, Junru Zhang, Ning He, Jingchun Sun, Yutong Xie, Xiang Song, Yanhong Tong, Qingxin Tang, Yichun Liu","doi":"10.1016/j.jmst.2025.08.050","DOIUrl":"https://doi.org/10.1016/j.jmst.2025.08.050","url":null,"abstract":"Organic thin-film transistors (OTFTs) are regarded as highly promising candidates for next-generation flexible electronics. However, device stability remains a major obstacle to OTFTs commercialization. Here, we propose the sandwich-structured composite dielectrics (OTS/DC 1-2577/SU8) for high-stability, high-performance, and high-uniformity organic devices. The composite dielectrics-based OTFTs demonstrate remarkable stability, with 15,000 s bias pressure stability and 25,700 switching cycles, outshining the well-established stable SiO2 devices. Additionally, the device features a low defect state density and near-zero hysteresis. More strikingly, a 16×16 high-stability flexible OTFT array was successfully fabricated, achieving outstanding performance uniformity with a mobility coefficient of variation of only 3.8%. This metric is superior to that of the previously reported large-area flexible OTFT arrays. This work ingeniously designs a sandwich-structured composite dielectrics integrating superior environmental, operational, and mechanical stability, offering a novel and widely applicable approach to developing high-stability, high-performance, and high-uniformity organic transistors and greatly accelerating their industrialization.","PeriodicalId":16154,"journal":{"name":"Journal of Materials Science & Technology","volume":"88 1","pages":""},"PeriodicalIF":10.9,"publicationDate":"2025-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145089068","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

The coordination of thermoelectric and photoelectric effects through tailoring the heat-driven electric field revealed by a “ship-lock”-based thermoelectric material 一种基于“船闸”的热电材料揭示了通过剪裁热驱动电场来协调热电和光电效应

IF 10.9 1区材料科学

Journal of Materials Science & Technology Pub Date : 2025-09-20 DOI: 10.1016/j.jmst.2025.09.015

Xiao Luo, Honglin Du, Shizhang Chen, Haoran Shen, Weipeng Liu, Aori Qileng, Yingju Liu

{"title":"The coordination of thermoelectric and photoelectric effects through tailoring the heat-driven electric field revealed by a “ship-lock”-based thermoelectric material","authors":"Xiao Luo, Honglin Du, Shizhang Chen, Haoran Shen, Weipeng Liu, Aori Qileng, Yingju Liu","doi":"10.1016/j.jmst.2025.09.015","DOIUrl":"https://doi.org/10.1016/j.jmst.2025.09.015","url":null,"abstract":"The thermoelectric materials could play a crucial role in fuel production for a circular economy, as they could provide a method to utilize the photons of relatively low energy from thermalization losses of light absorption. However, the traditional thermoelectric property was enhanced through optimizing the inherent band engineering according to the Seebeck coefficient, which ignored the off-centering behavior of the conduction band under the light. Herein, we exploited the thermal conversion characteristics of covalent organic framework-1,3,5-triformylphloroglucinol 3,8-diamino-6-phenylphenanthridine (COF-TpDPP) under red light to construct a three-component photoelectric material (WO3/COF-TpDPP/CdS). Through the Kelvin probe force microscope and density functional theory calculations, the COF-TpDPP layer reduced carrier transport barriers under the illumination of red light through the off-centering behavior of the conduction band to form thermoelectric and band-gap compression effects. As a result, the COF-TpDPP facilitated carrier transport between WO3 and CdS by utilizing its thermoelectric properties to reconstruct the carrier migration pathway, thereby creating a heat-mediated charge transfer system analogous to a “ship-lock” mechanism, which caused a 30% enhancement in photocurrent. Additionally, the photocatalytic degradation capability of WO3/COF-TpDPP/CdS has been utilized to develop a device for measuring soluble total organic carbon. This new mechanism presents approaches for the design of advanced thermoelectric materials in enhancing photo-electrocatalytic efficiency for the application in energy management, the treatment of hazardous waste, and environmental monitoring.","PeriodicalId":16154,"journal":{"name":"Journal of Materials Science & Technology","volume":"154 1","pages":""},"PeriodicalIF":10.9,"publicationDate":"2025-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145089067","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Superior cryogenic strength-ductility synergy in a multiphase lamellar-structured metastable high-entropy alloy 多相层状结构亚稳高熵合金中优异的低温强度-延展性协同作用

IF 10.9 1区材料科学

Journal of Materials Science & Technology Pub Date : 2025-09-20 DOI: 10.1016/j.jmst.2025.09.016

Mengxue Jiao, Tuanwei Zhang, Jinyao Ma, Jinxiong Hou, Dan Zhao, Jingwei Zhao, Hyoung Seop Kim, Zhihua Wang

{"title":"Superior cryogenic strength-ductility synergy in a multiphase lamellar-structured metastable high-entropy alloy","authors":"Mengxue Jiao, Tuanwei Zhang, Jinyao Ma, Jinxiong Hou, Dan Zhao, Jingwei Zhao, Hyoung Seop Kim, Zhihua Wang","doi":"10.1016/j.jmst.2025.09.016","DOIUrl":"https://doi.org/10.1016/j.jmst.2025.09.016","url":null,"abstract":"Deep space exploration demands materials with exceptional strength and toughness under cryogenic conditions. In this study, we optimize the cryogenic mechanical performance of a metastable Fe46Co30Cr10Mn5V5Si4 (at.%) high-entropy alloy (HEA) through a simple and efficient two-step continuous rolling strategy that combines warm rolling with cold rolling (WRCR). This processing route enhances production efficiency while refining the microstructure into a multiphase lamellar architecture, effectively suppressing deleterious σ phase precipitation. The WRCR-processed alloy exhibits outstanding cryogenic mechanical properties, including a yield strength (YS) of 1.8 GPa, ultimate tensile strength of 2.1 GPa, and a uniform elongation of 16.8% at 77 K. Tailored phase transformation kinetics, driven by high-density dislocations, enable ultrahigh YS while sustaining transformation-induced plasticity (TRIP) effects, thereby enhancing ductility at cryogenic temperatures. Furthermore, the refined lamellar structure promotes crack path deflection and delamination fracture modes, significantly improving fracture resistance. The interplay between movable dislocations and strain hardening governs the yield-point behavior, influencing both the stress drop and the extent of Lüders band deformation. Notably, pre-activated dislocations and martensitic transformation in the WRCR sample effectively suppress Lüders band propagation. This work provides critical insights into the control of heterogeneous deformation and presents a scalable strategy for designing metastable HEAs with superior cryogenic performance.","PeriodicalId":16154,"journal":{"name":"Journal of Materials Science & Technology","volume":"18 1","pages":""},"PeriodicalIF":10.9,"publicationDate":"2025-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145089074","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Bifunctional eco-friendly tobacco stem extract with antibacterial and corrosion inhibition properties for mitigating microbiologically influenced corrosion 具有抗菌和缓蚀特性的双功能环保烟草茎提取物，可减轻微生物影响的腐蚀

IF 10.9 1区材料科学

Journal of Materials Science & Technology Pub Date : 2025-09-19 DOI: 10.1016/j.jmst.2025.09.011

Jiahang Li, Di Wang, Xi Ouyang, Zehong Tian, Yalin Wu, Bei Liu, Zhilin Li, Enze Zhou, Xianghong Li, Fuhui Wang, Tingyue Gu, Dake Xu

{"title":"Bifunctional eco-friendly tobacco stem extract with antibacterial and corrosion inhibition properties for mitigating microbiologically influenced corrosion","authors":"Jiahang Li, Di Wang, Xi Ouyang, Zehong Tian, Yalin Wu, Bei Liu, Zhilin Li, Enze Zhou, Xianghong Li, Fuhui Wang, Tingyue Gu, Dake Xu","doi":"10.1016/j.jmst.2025.09.011","DOIUrl":"https://doi.org/10.1016/j.jmst.2025.09.011","url":null,"abstract":"Tobacco stem extract (TSE), derived from agricultural waste, was developed as a novel eco-friendly bifunctional agent for mitigating microbiologically influenced corrosion (MIC). TSE exhibited broad-spectrum antibacterial properties, achieving an exceptional efficacy of 99.9% against gram-negative Desulfovibrio vulgaris and gram-positive Bacillus licheniformis sessile cells in their biofilms. TSE also decreased MIC rates by 98% and 91% for D. vulgaris and B. licheniformis, respectively. Additionally, TSE showed an efficiency of 85% in mitigating abiotic corrosion. The antimicrobial mechanism was found to stem from microbial cell disruption by bioactive components (nicotine, quercetin, caffeic acid), while corrosion inhibition arises from TSE adsorption on metal surfaces according to molecular simulation. These results demonstrated that TSE not only integrates antimicrobial and anticorrosion functions into a single natural extract, but also provides a sustainable utilization of waste for resource recovery, offering a promising green alternative to conventional commercial biocides for industrial MIC mitigation.","PeriodicalId":16154,"journal":{"name":"Journal of Materials Science & Technology","volume":"23 1","pages":""},"PeriodicalIF":10.9,"publicationDate":"2025-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145089136","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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