Scripta Materialia最新文献_第7页

Changes in electronic structures of Gd65Co35 metallic glass by cryogenic rejuvenation 低温回春对Gd65Co35金属玻璃电子结构的影响

IF 5.6 2区材料科学

Scripta Materialia Pub Date : 2025-08-26 DOI: 10.1016/j.scriptamat.2025.116933

Shinya Hosokawa , Hitoshi Sato , Yasuhisa Tezuka , Jun-ichi Adachi , Kentaro Kobayashi , Koji Ohara , Yuan Tan , Tetsu Ichitsubo , Rui Yamada , Hidemi Kato

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Catalytic enhancement of hydrogen generation through the nanoporous zinc-water reaction 纳米孔锌-水反应催化增强制氢

IF 5.6 2区材料科学

Scripta Materialia Pub Date : 2025-08-26 DOI: 10.1016/j.scriptamat.2025.116941

Jo Kubota, Jiaxin Liu, Eric Detsi

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Nature-to-microstructure network: A cross-domain knowledge transfer framework for steel microstructure classification 自然-微观结构网络：钢微观结构分类的跨领域知识转移框架

IF 5.6 2区材料科学

Scripta Materialia Pub Date : 2025-08-25 DOI: 10.1016/j.scriptamat.2025.116937

Kang Xu , Huihui Yang , Zhengming Sun , Wenwang Wu

{"title":"Nature-to-microstructure network: A cross-domain knowledge transfer framework for steel microstructure classification","authors":"Kang Xu , Huihui Yang , Zhengming Sun , Wenwang Wu","doi":"10.1016/j.scriptamat.2025.116937","DOIUrl":"10.1016/j.scriptamat.2025.116937","url":null,"abstract":"<div><div>Reliable microstructure identification underpins the control of microstructural evolution and the tailored design of mechanical performance in steels. However, conventional approaches are limited by subjectivity and inefficiency, while deep learning models often struggle with data scarcity and multiscale complexity. This study proposes Nature-to-Microstructure Network (N2M-Net) a cross-domain transfer learning (TL) framework leveraging morphological similarities between natural textures and steel microstructures. It is designed to enable accurate microstructure classification under extreme data scarcity and to enhance model generalization through morphology-guided knowledge transfer. Pretrained on 750 natural images, N2M-Net incorporates residual connections, spatial attention, and dilated Inception modules for robust multiscale feature extraction. With only 20 microscopic images, it surpassed 95.00 % accuracy within 20 epochs and reached 95.67 % final accuracy, significantly outperforming direct training. This work demonstrates a novel morphology-driven cross-domain transfer paradigm for intelligent microstructure analysis under limited data.</div></div>","PeriodicalId":423,"journal":{"name":"Scripta Materialia","volume":"270 ","pages":"Article 116937"},"PeriodicalIF":5.6,"publicationDate":"2025-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144893738","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}

引用次数: 0

Transformation mechanism of yielding behavior in the aged Mg-Gd-Y-Nd-Zr alloy during room temperature tensile deformation 时效Mg-Gd-Y-Nd-Zr合金室温拉伸变形屈服行为转变机理

IF 5.6 2区材料科学

Scripta Materialia Pub Date : 2025-08-23 DOI: 10.1016/j.scriptamat.2025.116944

Zexi Gao , Shunong Jiang , Yingchun Wan , Yonghao Gao , Zhiyong Chen , Chuming Liu

{"title":"Transformation mechanism of yielding behavior in the aged Mg-Gd-Y-Nd-Zr alloy during room temperature tensile deformation","authors":"Zexi Gao , Shunong Jiang , Yingchun Wan , Yonghao Gao , Zhiyong Chen , Chuming Liu","doi":"10.1016/j.scriptamat.2025.116944","DOIUrl":"10.1016/j.scriptamat.2025.116944","url":null,"abstract":"<div><div>The microscopic mechanism of room-temperature discontinuous yielding in fine-grained Mg alloy is revealed for the first time, highlighting the critical role of mobile dislocations. The yielding behavior transitioned from discontinuous to continuous with increasing aging time. Discontinuous yielding behavior is attributed to partial mobile dislocations within the initial microstructure overcoming obstacles posed by subgrain boundaries and LAGBs during tensile deformation. The mobile dislocations activated under high stress and traversed subgrain boundaries or LAGBs, resulting in a sudden stress drop followed by a stress plateau. After aging for 12 h, the β' phase stabilizes the LAGBs to prevent dislocation crossing them, but still allows some dislocations to cross subgrain boundaries, resulting in a shortened yield plateau. Upon extending aging time to 32 h, high-density β' phases effectively pins dislocations and stabilizes both subgrain boundaries and LAGBs, thereby suppressing dislocation movement and completely eliminating discontinuous yielding.</div></div>","PeriodicalId":423,"journal":{"name":"Scripta Materialia","volume":"270 ","pages":"Article 116944"},"PeriodicalIF":5.6,"publicationDate":"2025-08-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144890409","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}

引用次数: 0

Microstructure optimization by combinatorial approach applied to Duplex Medium Manganese steels 组合优化方法在双相中锰钢中的应用

IF 5.6 2区材料科学

Scripta Materialia Pub Date : 2025-08-23 DOI: 10.1016/j.scriptamat.2025.116955

Olha Nakonechna , Benoit Denand , Imed-Eddine Benrabah , Guillaume Geandier , Lionel Germain , Hugo Paul Van Landeghem , Alexis Deschamps , Sébastien Allain

{"title":"Microstructure optimization by combinatorial approach applied to Duplex Medium Manganese steels","authors":"Olha Nakonechna , Benoit Denand , Imed-Eddine Benrabah , Guillaume Geandier , Lionel Germain , Hugo Paul Van Landeghem , Alexis Deschamps , Sébastien Allain","doi":"10.1016/j.scriptamat.2025.116955","DOIUrl":"10.1016/j.scriptamat.2025.116955","url":null,"abstract":"<div><div>This study introduces a novel combinatorial approach for optimizing the microstructure of duplex medium-manganese (Mn) steels by coupling a controlled thermal gradient with in situ high-energy X-ray diffraction (HEXRD) during intercritical annealing. A temperature gradient (680–720 °C) across a single sample enables real-time monitoring of phase transformations over a broad thermal range in one experiment. Compared to isothermal trials, this method offers high-resolution insight into austenite formation kinetics and phase stability, enabling accurate identification of the optimal temperature window for maximizing retained austenite. The results reveal a narrow optimal range (∼700–710 °C) where retained austenite fractions exceed 30 %, surpassing values from traditional methods. Post-mortem Electron Backscatter Diffraction (EBSD) analysis showed the spatial distribution of stabilized austenite, highlighting the complementary roles of in situ and ex situ characterization. This work demonstrates the potential of gradient-based combinatorial metallurgy to accelerate process optimization and support the design of high-performance third-generation advanced high-strength steels.</div></div>","PeriodicalId":423,"journal":{"name":"Scripta Materialia","volume":"270 ","pages":"Article 116955"},"PeriodicalIF":5.6,"publicationDate":"2025-08-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144891907","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}

引用次数: 0

Measurement of the diffusion coefficient in Fe-18.5Cr-10Ni alloy through diffusion couple experiments in a hydrogen environment 用扩散偶实验测量Fe-18.5Cr-10Ni合金在氢气环境中的扩散系数

IF 5.6 2区材料科学

Scripta Materialia Pub Date : 2025-08-22 DOI: 10.1016/j.scriptamat.2025.116926

Nobuyoshi Komai , Koki Saito , Yuji Momotani , Masatoshi Mitsuhara

引用次数: 0

High-throughput screening for rare-earth-free permanent magnet and magnetocaloric effect applications in Fe-N alloys 无稀土永磁体的高通量筛选及铁氮合金中的磁热效应应用

IF 5.6 2区材料科学

Scripta Materialia Pub Date : 2025-08-21 DOI: 10.1016/j.scriptamat.2025.116945

Qiang Gao , Ergen Bao , Ijaz Shahid , Hui Ma , Xing-Qiu Chen

引用次数: 0

The physical origin of heterogeneous solute clustering and nanoprecipitation at grain boundaries in ultrafine-grained immiscible alloys 超细晶非混相合金晶界非均质溶质团簇和纳米沉淀的物理成因

IF 5.6 2区材料科学

Scripta Materialia Pub Date : 2025-08-20 DOI: 10.1016/j.scriptamat.2025.116939

Pavel Nikitin , Maxime Guinel de France , Frederic Sansoz

引用次数: 0

Gradient TiZrHfMoW/(Mo,W)N multilayer coatings formed via Mo/W segregation: Coherent interface architecture and toughening mechanisms Mo/W偏析形成的梯度TiZrHfMoW/(Mo，W)N多层涂层：界面结构和增韧机制

IF 5.6 2区材料科学

Scripta Materialia Pub Date : 2025-08-20 DOI: 10.1016/j.scriptamat.2025.116943

Qi Zhou , Jiang Xu , Shuang Peng , Minming Jiang , Yujie Chen , Zong-Han Xie , Paul Munroe

{"title":"Gradient TiZrHfMoW/(Mo,W)N multilayer coatings formed via Mo/W segregation: Coherent interface architecture and toughening mechanisms","authors":"Qi Zhou , Jiang Xu , Shuang Peng , Minming Jiang , Yujie Chen , Zong-Han Xie , Paul Munroe","doi":"10.1016/j.scriptamat.2025.116943","DOIUrl":"10.1016/j.scriptamat.2025.116943","url":null,"abstract":"<div><div>Inspired by the hierarchical architectures found in natural materials, a TiZrHfMoW/(Mo,W)N gradient multilayer coating was fabricated using a simple one-step sputtering deposition technique, leveraging segregation-induced self-assembly rather than conventional sequential deposition. During the deposition process, the spontaneous segregation of W and Mo led to the formation of a layered (Mo,W)N phase within the TiZrHfMoW matrix. These sublayers exhibit epitaxial relationships with the surrounding high-entropy alloy phase, forming well-defined coherent interfaces. Compared to a monolithic (Mo,W)N coating, the gradient multilayer system maintains comparable surface hardness (∼18.8 GPa) while significantly enhancing damage tolerance under mechanical loading. The synergistic toughening mechanisms include solid solution strengthening, interface coherency strain, grain boundary hardening, and a spatially varying modulus that aids crack arrest and stress distribution. This work demonstrates a scalable, self-organizing design strategy for architectured coatings with offering superior mechanical performance under demanding service conditions.</div></div>","PeriodicalId":423,"journal":{"name":"Scripta Materialia","volume":"270 ","pages":"Article 116943"},"PeriodicalIF":5.6,"publicationDate":"2025-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144878496","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}

引用次数: 0

Shining light on nanoscale ‘vine-on-stick’ eutectic structures in the Al-Ce-Ni system 研究Al-Ce-Ni体系中纳米尺度的“枝上藤”共晶结构

IF 5.6 2区材料科学

Scripta Materialia Pub Date : 2025-08-20 DOI: 10.1016/j.scriptamat.2025.116932

S. Dasgupta , T. Wu , A. Michelson , X. Hu , D.C. Dunand , A.J. Shahani

{"title":"Shining light on nanoscale ‘vine-on-stick’ eutectic structures in the Al-Ce-Ni system","authors":"S. Dasgupta , T. Wu , A. Michelson , X. Hu , D.C. Dunand , A.J. Shahani","doi":"10.1016/j.scriptamat.2025.116932","DOIUrl":"10.1016/j.scriptamat.2025.116932","url":null,"abstract":"<div><div>Multiphase eutectics often comprise entangled solid phases with nanoscale periodicity, making it difficult to unravel their 3D connectivity using conventional 2D techniques. Among such systems, the three-phase eutectic Al-Al<sub>11</sub>Ce<sub>3</sub>-Al<sub>3</sub>Ni stands out for its ultrafine (∼100 nm) interphase spacing and promising creep resistance, yet its microstructure remains relatively unexplored despite its potential for high-temperature applications. Here, we use scanning hard X-ray microscopy with an unprecedented ∼10 nm pixel size to resolve its 3D morphology. Reconstructions reveal a novel “vine-on-stick” motif, wherein Al<sub>11</sub>Ce<sub>3</sub> wraps around Al<sub>3</sub>Ni pillars. Analysis of phase tortuosities confirms that Al<sub>11</sub>Ce<sub>3</sub> exhibits more convoluted morphologies than Al<sub>3</sub>Ni. No orientation relationship was observed between the two intermetallics, suggesting that growth is controlled by local solute gradients rather than epitaxy. Fragmentation of intermetallics along their longitudinal axis suggests a Rayleigh-type breakup mechanism in solid state. The “vine-on-stick” pattern may generalize to other alloy systems with variable interfacial anisotropies and low mutual solubilities.</div></div>","PeriodicalId":423,"journal":{"name":"Scripta Materialia","volume":"270 ","pages":"Article 116932"},"PeriodicalIF":5.6,"publicationDate":"2025-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144863777","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}

引用次数: 0