Materialia最新文献_第9页

High-throughput experimental screening for ternary W-Ni-Nb metallic glasses using multi-channel powder laser melting-quenching method 采用多通道粉末激光熔淬法对三元W-Ni-Nb金属玻璃进行高通量实验筛选

IF 2.9

Materialia Pub Date : 2026-03-01 Epub Date: 2026-02-10 DOI: 10.1016/j.mtla.2026.102685

Hengbo Zhao , Xiaobin Liu , Xiaoyu Dong , Xuhe Gong , Chao Wang , Ran Li , Yanhui Liu , Tao Zhang

引用次数: 0

Investigation on the evolution of second phases in dilute Mg–Zn–Gd–Ca–Mn alloy 稀Mg-Zn-Gd-Ca-Mn合金第二相演化研究

IF 2.9

Materialia Pub Date : 2026-03-01 Epub Date: 2026-02-27 DOI: 10.1016/j.mtla.2026.102706

Yifan Song , Chunxiao Li , Xiaoyang Ge , Jiaqi Li , Hong Yan , Lingyu Zhao , Huiping Li , Rongshi Chen

{"title":"Investigation on the evolution of second phases in dilute Mg–Zn–Gd–Ca–Mn alloy","authors":"Yifan Song , Chunxiao Li , Xiaoyang Ge , Jiaqi Li , Hong Yan , Lingyu Zhao , Huiping Li , Rongshi Chen","doi":"10.1016/j.mtla.2026.102706","DOIUrl":"10.1016/j.mtla.2026.102706","url":null,"abstract":"<div><div>A multi-element microalloyed dilute Mg–1.8Zn–0.8Gd–0.1Ca–0.2Mn magnesium alloy possessing high plasticity was developed. This study investigated the evolution mechanisms of second phases during annealing (325-480 °C), and both predicts and validates the influence of annealing temperature on mechanical properties. Despite low alloying content, the as-rolled alloy contains multiple second-phase types, primarily large block-shaped (4–12 μm), long string-like, and fine spherical W phases (150–200 nm), rod-like Mg₇(Zn, Gd)₃ phases (500–700 nm), α-Mn phases (40–50 nm), and cubic GdH₂ phases (3–15 μm). Complete recrystallization occurs at 325 °C with no significant change in phase types. Complete recrystallization occurs at 325°C, with no significant change in the second phase type. The rod-like phase disappeared and the spherical phase showed a tendency toward partial dissolution into the matrix at 375 °C while other phases remained stable. When the annealing temperature is higher than 450°C, the fine spherical phase disappears completely, while only a few grains contain the α-Mn phase, and the number of cube phase increases. The spherical, rod-like and α-Mn phases effectively stabilize grain boundaries through Zener pinning, thereby maintaining an optimal strength-ductility balance at 325°C. Moreover, the second phase can be selected by suitable annealing temperature according to actual demand. Additionally, this study recommends intermediate annealing at 400 -420°C to control the large block phase during thermomechanical processing, thereby enhancing hot-workability.</div></div>","PeriodicalId":47623,"journal":{"name":"Materialia","volume":"45 ","pages":"Article 102706"},"PeriodicalIF":2.9,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147420626","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Low-cost thermal-resistant aluminum alloy wire for electrical purposes without Zr 不含Zr的低成本耐热铝合金电线

IF 2.9

Materialia Pub Date : 2026-03-01 Epub Date: 2026-02-12 DOI: 10.1016/j.mtla.2026.102688

Jiancheng Yin , Xinian Yin , Junyang Liu , Shaoyang Li , Yingli Liu , Shuhong Sun

引用次数: 0

Achieving superior mechanical performance of additive manufactured TPMS lattice structure via dual isosurface design method 采用双等值面设计方法实现增材制造TPMS晶格结构优越的力学性能

IF 2.9

Materialia Pub Date : 2026-03-01 Epub Date: 2026-02-23 DOI: 10.1016/j.mtla.2026.102701

Yun Chen , Ziqi Wang , Xingcheng Shi , Kaixiong Hu , Lingyu Guo , Mingxing Han , Zhiping Wang , Qing Teng

{"title":"Achieving superior mechanical performance of additive manufactured TPMS lattice structure via dual isosurface design method","authors":"Yun Chen , Ziqi Wang , Xingcheng Shi , Kaixiong Hu , Lingyu Guo , Mingxing Han , Zhiping Wang , Qing Teng","doi":"10.1016/j.mtla.2026.102701","DOIUrl":"10.1016/j.mtla.2026.102701","url":null,"abstract":"<div><div>The mechanical properties of triply periodic minimal surface structures are of critical importance for engineering applications. In this study, G-type cell structures were designed via a dual isosurface method to enhance their mechanical properties. Numerical simulations were conducted to investigate the influence of wall offset in the dual isosurface design on mechanical performance of the structures. Additionally, laser powder bed fusion (LPBF) technology was employed to fabricate the structures and validate their performance. Compression test revealed that among the five dual isosurface structures fabricated by LPBF, the minimum Young’ s modulus was 901 MPa and the maximum was 1154 MPa, both exceeding that of the conventional G-type structure (676 MPa). Furthermore, the dual isosurface structures exhibited a minimum yield strength of 45 MPa, which is also higher than that of the original model (33 MPa). Finite element analysis indicated that the dual isosurface design promotes smoother surface transitions and more uniform thickness variation, thereby mitigating stress concentration. High cycle fatigue test demonstrated that cyclic ratcheting and fatigue damage are the main failure mechanisms. Notably, the fatigue strength ratio of the conventional G-type structure was 0.782, lower than those of the dual isosurface structures. The dual isosurface design strategy method proposed in this work offers a pathway for performance enhancement in LPBF-fabricated TPMS structures.</div></div>","PeriodicalId":47623,"journal":{"name":"Materialia","volume":"45 ","pages":"Article 102701"},"PeriodicalIF":2.9,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147420709","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Enhanced creep resistance of additively manufactured UNS N07001 by electron beam melting 电子束熔炼增强增材制造UNS N07001抗蠕变性能

IF 2.9

Materialia Pub Date : 2026-03-01 Epub Date: 2025-12-14 DOI: 10.1016/j.mtla.2025.102638

Ryo Takakuwa , Motoki Sakaguchi , Hiroaki Nakamoto , Ryotaro Yamamoto , Manabu Noguchi , Hirotsugu Inoue

{"title":"Enhanced creep resistance of additively manufactured UNS N07001 by electron beam melting","authors":"Ryo Takakuwa , Motoki Sakaguchi , Hiroaki Nakamoto , Ryotaro Yamamoto , Manabu Noguchi , Hirotsugu Inoue","doi":"10.1016/j.mtla.2025.102638","DOIUrl":"10.1016/j.mtla.2025.102638","url":null,"abstract":"<div><div>The nickel-based superalloy UNS N07001 (also known as Waspaloy®), commonly used in gas turbine components, is conventionally manufactured through forging, but electron beam powder bed fusion (EB-PBF) is an emerging additive manufacturing method offering faster production. The effects of post-heat treatments on the microstructure and creep behavior of UNS N07001 built by EB-PBF were investigated in this study. Specimens were evaluated in three conditions: as-built, after hot isostatic pressing (HIP) alone, and combined with solution treatment and aging (STA) after HIP. In the microstructural analysis, all specimens consistently exhibited a columnar grain structure aligned with the building direction, and HIP treatment effectively eliminated the internal defects observed in the as-built specimen. STA after HIP treatment promoted the precipitation of fine secondary γ' phase and discretely formed M<sub>23</sub>C<sub>6</sub> carbides at the grain boundaries, thereby reducing the area fraction of the coarser primary γ' phase. Stress-rupture tests were performed at 732 and 816 °C with the load axis aligned parallel to the building direction, showing that the HIP + STA specimens outperformed both the AMS5704L and the wrought material. This superior creep resistance is attributed to the synergistic effect of the macro-scale columnar grain structure, which minimizes grain boundaries perpendicular to the load, and the optimized intragranular microstructure, which provides high resistance against dislocation movement. Ultimately, EB-PBF with optimized post-heat treatment is a highly promising manufacturing route for UNS N07001 components.</div></div>","PeriodicalId":47623,"journal":{"name":"Materialia","volume":"45 ","pages":"Article 102638"},"PeriodicalIF":2.9,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145841509","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Modeling of the mechanical behavior of low carbon martensite based on the stochastic approach of the microstructure heterogeneity 基于组织非均质性随机方法的低碳马氏体力学行为建模

IF 2.9

Materialia Pub Date : 2026-03-01 Epub Date: 2026-01-30 DOI: 10.1016/j.mtla.2026.102677

Juan Macchi , Imed-Eddine Benrabah , Guillaume Geandier , Sabine Denis , Frédéric Bonnet , Sébastien Allain

{"title":"Modeling of the mechanical behavior of low carbon martensite based on the stochastic approach of the microstructure heterogeneity","authors":"Juan Macchi , Imed-Eddine Benrabah , Guillaume Geandier , Sabine Denis , Frédéric Bonnet , Sébastien Allain","doi":"10.1016/j.mtla.2026.102677","DOIUrl":"10.1016/j.mtla.2026.102677","url":null,"abstract":"<div><div>Recent studies have suggested that the strain hardening of low carbon martensitic steels can be better understood by considering the important microstructural heterogeneities, arising from the progressive nature of the martensitic transformation. In this work, these heterogeneities are systematically analyzed in three martensitic steels with different carbon contents, focusing on the correlated distributions of dislocation density and martensitic domain size. From these characterizations, the local flow strength distributions were obtained at the scale of the microstructure. A Masing-like micromechanical model was then used to predict the tensile behavior by combining the calculated yield strength distribution with a proportional distribution of deviatoric stresses. The model successfully reproduces the tensile behavior of the studied steels in the as-quenched state and, for the first time, quantitatively accounts for the role of microstructural heterogeneities. Moreover, the subsequent compressive test is successfully modeled without the introduction of any supplementary parameter, highlighting that the model effectively describes the essentially kinematic nature of strain-hardening in martensitic steels.</div></div>","PeriodicalId":47623,"journal":{"name":"Materialia","volume":"45 ","pages":"Article 102677"},"PeriodicalIF":2.9,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146187833","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Revisiting modeling of spinodal hardening in Fe-35 at. % Cr and DSS 2205 alloys Fe-35合金轴向硬化模型的再探讨。% Cr和dss2205合金

IF 2.9

Materialia Pub Date : 2026-03-01 Epub Date: 2026-02-04 DOI: 10.1016/j.mtla.2026.102680

Deepak Arya , Sudip K. Sarkar , Deodatta Shinde , Satwik Kommula , Kamlesh Chandra , Debes Ray , Debasis Sen , Aniruddha Biswas

{"title":"Revisiting modeling of spinodal hardening in Fe-35 at. % Cr and DSS 2205 alloys","authors":"Deepak Arya , Sudip K. Sarkar , Deodatta Shinde , Satwik Kommula , Kamlesh Chandra , Debes Ray , Debasis Sen , Aniruddha Biswas","doi":"10.1016/j.mtla.2026.102680","DOIUrl":"10.1016/j.mtla.2026.102680","url":null,"abstract":"<div><div>Correct prediction of spinodal hardening is of great importance, especially for duplex stainless steels, as it influences their mechanical properties and service performance under elevated-temperature conditions. This work reassesses the applicability of classical spinodal hardening models to Fe-Cr alloys and proposes an alternative framework. The methodology, first developed and validated for a binary Fe–35 at. % Cr alloy, is subsequently applied to the ferrite phase of DSS 2205. Atom probe tomography (APT) is employed to quantify the evolution of spinodal decomposition parameters during thermal aging in both alloys. APT-based estimates of wavelength and volume fraction are corroborated by a small angle neutron scattering (SANS)-APT combinatorial approach. The change in the critical resolved shear stress with aging is derived from the evolution of their Vickers hardness. We found that the classical models of Kato, Park, and Ardell considerably underestimate spinodal hardening in Fe-Cr alloys by a factor of 2-5. Moreover, their underlying assumptions of perfectly sinusoidal spinodal fluctuations -implying equal volume fractions of the α and α′ phases and a spatially uniform fluctuation amplitude - are inconsistent with experimental observations from APT and SANS. In contrast, our methodology, avoids these assumptions by employing a proximity-histogram-based approach to determine the volume fractions of highly Cr-rich domains, which are then used as inputs in the Deschamps model of shearable precipitate hardening. This method provides a much closer prediction of spinodal hardening than previous models, achieving agreement within 20 % for most aging conditions, and offers an alternative framework for more accurate predictive modeling.</div></div>","PeriodicalId":47623,"journal":{"name":"Materialia","volume":"45 ","pages":"Article 102680"},"PeriodicalIF":2.9,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146187839","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Suppression of interfacial IMCs spallation in Ni-P/SAC305 joints via barrier layer morphology control 控制势垒层形貌抑制Ni-P/SAC305接头界面IMCs剥落

IF 2.9

Materialia Pub Date : 2026-03-01 Epub Date: 2026-01-07 DOI: 10.1016/j.mtla.2026.102654

Jing Xing, Yilong Ouyang, Haitao Ma, Ning Zhao

{"title":"Suppression of interfacial IMCs spallation in Ni-P/SAC305 joints via barrier layer morphology control","authors":"Jing Xing, Yilong Ouyang, Haitao Ma, Ning Zhao","doi":"10.1016/j.mtla.2026.102654","DOIUrl":"10.1016/j.mtla.2026.102654","url":null,"abstract":"<div><div>Interfacial spallation of intermetallic compounds (IMCs) in Ni-based diffusion barrier layers is a critical reliability concern in lead-free solder joints, yet its governing mechanism remains controversial. In this study, electroless Ni–P diffusion barriers with distinct smooth and cellular surface morphologies were fabricated and reacted with SAC305 solder to elucidate the role of barrier morphology in IMC spallation behavior and joint reliability. Wetting angles were measured to evaluate interfacial energy, while barrier layer consumption kinetics were analyzed to assess atomic diffusion behavior across the interface. Although similar interfacial reaction products form in both systems, pronounced IMC spallation is observed only at cellular Ni–P/SAC305 interfaces. Smooth Ni–P coatings exhibit a lower interfacial energy and a significantly reduced interfacial reaction rate (<em>k</em> = 0.46) compared with cellular Ni–P coatings (<em>k</em> = 0.97), effectively suppressing IMC growth, coarsening, and subsequent detachment. In contrast, the protruding cellular morphology and abundant diffusion pathways in cellular Ni–P promote accelerated atomic diffusion, leading to enhanced IMC maturation and severe spallation. Mechanical shear testing further confirms that smooth Ni–P/SAC305 joints achieve a substantially higher average shear strength (34.32 MPa) than their cellular counterparts (20.24 MPa). These results demonstrate that IMC spallation is governed by a synergistic interplay between interfacial energy and diffusion kinetics. Establishing a thermodynamic–kinetic framework provides new insight into interfacial stability at Ni–P/solder interfaces and identifies surface morphology tailoring of Ni–P diffusion barriers as an effective strategy to mitigate IMC spallation and enhance solder joint reliability.</div></div>","PeriodicalId":47623,"journal":{"name":"Materialia","volume":"45 ","pages":"Article 102654"},"PeriodicalIF":2.9,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145939111","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The incommensurate modulation of tetragonal tungsten bronze quantified by high resolution 4D STEM 用高分辨率4D STEM定量分析了四方钨青铜的不适应调制

IF 2.9

Materialia Pub Date : 2026-03-01 Epub Date: 2026-01-02 DOI: 10.1016/j.mtla.2026.102651

Stephen D. Funni , Peter Ercius , Sebastian Calderon , Elizabeth C. Dickey

{"title":"The incommensurate modulation of tetragonal tungsten bronze quantified by high resolution 4D STEM","authors":"Stephen D. Funni , Peter Ercius , Sebastian Calderon , Elizabeth C. Dickey","doi":"10.1016/j.mtla.2026.102651","DOIUrl":"10.1016/j.mtla.2026.102651","url":null,"abstract":"<div><div>Many members of the tetragonal tungsten bronze (TTB) family of oxides display an incommensurate periodic lattice distortion, the nature of which has been the subject of some controversy. Here we present a study of this structural modulation in the relaxor ferroelectric Ba<sub>5</sub>SmSn<sub>3</sub>Nb<sub>7</sub>O<sub>30</sub> (BSSN) by quantitative scanning transmission electron microscopy (STEM). We characterize the modulation in BSSN by employing a fast, pixelated direct electron detector to perform high resolution phase contrast STEM imaging of the crystalline lattice. By quantitatively analyzing the images, we visualize the atomic structural correlations present in the material on both the cation and anion sublattices. This analysis reveals the incommensurate structure to have an octahedral tilting pattern and cooperative A2 site cation displacements, analogous to an <em>Ama2</em> commensurate cell. Finally, we show that the modulation is composed of a structural motif with a period of 3 x <span><math><msub><mi>d</mi><mrow><mn>1</mn><mover><mn>1</mn><mo>¯</mo></mover><mn>0</mn></mrow></msub></math></span> and modified by discommensurations, likely arise from frustrated octahedral tilting in the odd-valued periodicity.</div></div>","PeriodicalId":47623,"journal":{"name":"Materialia","volume":"45 ","pages":"Article 102651"},"PeriodicalIF":2.9,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145939103","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Designing of Cr-Cu-Fe-Al-Ni-Si high entropy alloy with high performance based on machine learning 基于机器学习的高性能Cr-Cu-Fe-Al-Ni-Si高熵合金设计

IF 2.9

Materialia Pub Date : 2026-03-01 Epub Date: 2026-01-27 DOI: 10.1016/j.mtla.2026.102674

Zhijia Fu , Hanqing Xu , Mengdi Zhang , Zhuoyi Wang , Rui Li

{"title":"Designing of Cr-Cu-Fe-Al-Ni-Si high entropy alloy with high performance based on machine learning","authors":"Zhijia Fu , Hanqing Xu , Mengdi Zhang , Zhuoyi Wang , Rui Li","doi":"10.1016/j.mtla.2026.102674","DOIUrl":"10.1016/j.mtla.2026.102674","url":null,"abstract":"<div><div>This work aims to establish a high-performance and high-precision machine learning model for predicting entropy in CrFeNi alloys, in order to adjust the content of Al, Cu, and Si, and accurately regulate the FCC and BCC phases in CrFeNi entropy alloys. In the multi-stage screening system, Random Forest demonstrates high accuracy in phase prediction, validating the transformation from FCC to FCC+BCC phases with varying alloying content. XGBoost achieves the highest prediction accuracy for hardness (R² = 0.971) and corrosion current density (R² = 0.89). Through an integrated screening system, the Al<sub>10</sub>Cu<sub>3</sub>Cr<sub>10</sub>Fe<sub>10</sub>Ni<sub>10</sub>Si<sub>0.5</sub> alloy is identified, exhibiting outstanding hardness (513.1 HV) and superior corrosion resistance (I<sub>corr</sub> = 0.899 µA cm⁻²) among Al, Cu, and Si-doped high-entropy alloys. SHAP analysis enhances model interpretability, revealing that valence electron concentration significantly influences hardness, while cohesive energy notably affects corrosion resistance. The research results offer a novel perspective for material design, optimization, expanding sample size, and the interpretation of machine learning models, overcoming the problems of small-sample data and breaking the drawbacks of black-box models.</div></div>","PeriodicalId":47623,"journal":{"name":"Materialia","volume":"45 ","pages":"Article 102674"},"PeriodicalIF":2.9,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146187831","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0