Intermetallics最新文献

{"title":"Microstructure evolution, mechanical properties and wear resistance of Fe based bulk metallic glass consolidated via spark plasma sintering","authors":"M.R. Rezaei ,&nbsp;R. Nazemnezhad ,&nbsp;H. Vafaeenezhad ,&nbsp;A. Fazli Sostani ,&nbsp;A. Moradi Koopai","doi":"10.1016/j.intermet.2025.109145","DOIUrl":"10.1016/j.intermet.2025.109145","url":null,"abstract":"<div><div>This study examines how spark plasma sintering (SPS) temperature and heating rate (in the presence of zirconium element) affect the densification behavior, microstructure, mechanical properties, and tribological behavior of Fe₇₅Si₁₅B₅Zr₅ metallic glass. Sintering took place in the supercooled liquid region of the metallic glass powder. The Archimedes method measured densification behavior. Scanning electron microscopy (SEM) provided detailed microstructural information and allowed qualitative evaluation of fracture toughness. X-ray diffraction handled phase analysis and quantified crystallization in the amorphous phase. Ball-on-disk wear testing evaluated tribological behavior, and Vickers microhardness testing assessed mechanical properties. Results revealed that higher sintering temperature increased both the crystallization degree of the amorphous phase and the densification rate. In contrast, heating rate produced mixed effects on crystallization and densification. The sample sintered at the highest temperature with the lowest heating rate exhibited the best fracture resistance and achieved the highest microhardness value of 1096 HV1. Across all samples, delamination of the tribological oxide layer was determined as the main wear mechanism.</div></div>","PeriodicalId":331,"journal":{"name":"Intermetallics","volume":"189 ","pages":"Article 109145"},"PeriodicalIF":4.8,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145880136","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":"Role of surface roughness in governing the mechanical, electrical, magnetic, and optical properties of amorphous Co40Fe40Gd20 thin films on flexible substrates","authors":"Shih-Hung Lin ,&nbsp;Yung-Huang Chang ,&nbsp;Yuan-Tsung Chen ,&nbsp;Xuan-Ming Su ,&nbsp;Wen Chang ,&nbsp;Huang-Wei Chang","doi":"10.1016/j.intermet.2025.109090","DOIUrl":"10.1016/j.intermet.2025.109090","url":null,"abstract":"<div><div>Amorphous cobalt-iron-gadolinium (Co₄₀Fe₄₀Gd₂₀) thin films with thicknesses of 10 nm–50 nm were deposited on flexible polyethylene terephthalate (PET) and polymethyl methacrylate (PMMA) substrates via direct-current (DC) magnetron sputtering and annealed at 40 °C and 80 °C to investigate the effects of film thickness, annealing temperature, and substrate type on structural, mechanical, electrical, magnetic, and optical properties. X-ray diffraction (XRD) confirmed the films remained amorphous under all conditions, due to the high gadolinium (Gd) content and limited thermal energy below the polymer glass transition temperatures. Atomic force microscopy (AFM) revealed substrate-dependent surface evolution, with PET films showing a decrease in roughness from 5.91 nm to 4.79 nm after 80 °C annealing, whereas PMMA films exhibited minimal roughness change. Surface energy increased with film thickness but decreased slightly upon annealing due to atomic rearrangement. Mechanical properties improved with both thickness and annealing. PET films reached a maximum Young's modulus of 22.58 GPa and hardness of 4.75 Gpa at 50 nm after 80 °C annealing, while PMMA films achieved 15.05 GPa modulus at 50 nm after 40 °C. Electrical measurements showed a significant reduction in sheet resistance from 7261 Ω/sq for as-deposited 10 nm films to 144 Ω/sq for 50 nm films annealed at 80 °C, with enhanced carrier mobility and concentration. Magnetic analysis confirmed in-plane soft magnetic behavior, with minor variations in coercivity (H_c) and saturation magnetization (M_s) influenced by stress relaxation and morphology-induced anisotropy. Magnetic force microscopy (MFM) indicated moderate annealing promoted ordered stripe domains, while higher temperatures induced domain coarsening. Optical characterization revealed transmittance decreased with thickness, reaching 40.68 % and 47.15 % at 10 nm on PET and PMMA at annealing 40 °C, whereas absorbance increased, indicating thickness-dominated optical behavior. These findings demonstrate that controlled annealing and thickness optimization enable precise tuning of surface roughness and multifunctional properties of CoFeGd amorphous films on flexible substrates, supporting their design for advanced flexible spintronic, electronic, and optoelectronic devices.</div></div>","PeriodicalId":331,"journal":{"name":"Intermetallics","volume":"189 ","pages":"Article 109090"},"PeriodicalIF":4.8,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145681998","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":"Extraordinary strength-ductility synergy in a novel high-entropy alloy via coupling multiple strengthening mechanisms","authors":"Mohammad Sajad Mehranpour ,&nbsp;Mohammad Javad Sohrabi ,&nbsp;Alireza Kalhor ,&nbsp;Ali Heydarinia ,&nbsp;Saeed Sadeghpour ,&nbsp;Hamed Mirzadeh ,&nbsp;Kinga Rodak ,&nbsp;Krzysztof Radwański ,&nbsp;Reza Mahmudi ,&nbsp;Hyoung Seop Kim","doi":"10.1016/j.intermet.2025.109094","DOIUrl":"10.1016/j.intermet.2025.109094","url":null,"abstract":"<div><div>The dilemma of achieving a strength-ductility synergy is a highly sought-after topic in the high-entropy alloys (HEAs) realm. Even HEAs capable of breaking the strength-ductility trade-off typically suffer from relatively low yield stresses. This challenge was addressed in the present work by introducing the Co₄₇Cr₂₀Fe_12.5Ni_12.5Mo₅Ti₃ HEA, which exhibits high solid-solution strengthening and high friction stress due to its high Mo and Ti contents leading to a yield stress of 527 MPa. In addition, excellent work-hardening behavior is achieved through the activation of twinning-induced plasticity (TWIP), enabled by an adjusted stacking-fault energy (SFE). The synergistic action of the TWIP effect and strong dislocation-based hardening (strain hardening) leads to an ultimate tensile strength of 1156 MPa and exceptional total elongation of 74 %. Overall, the proposed Co-rich HEA exhibits a desirable combination of strength and ductility compared to the most competitive HEAs reported in the literature.</div></div>","PeriodicalId":331,"journal":{"name":"Intermetallics","volume":"189 ","pages":"Article 109094"},"PeriodicalIF":4.8,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145617260","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":"Enhanced Fenton-like catalytic performance of Fe-based metallic glass by nitrogen microalloying","authors":"Lansong Yang ,&nbsp;Peixin Fu ,&nbsp;Chen Yang,&nbsp;Shixin Tan,&nbsp;Shun-Xing Liang,&nbsp;Yuanzheng Yang","doi":"10.1016/j.intermet.2025.109099","DOIUrl":"10.1016/j.intermet.2025.109099","url":null,"abstract":"<div><div>Metallic glasses (MGs) have attracted extensive attention in functional applications due to their long-range disordered atomic arrangement, making them as promising Fenton-like catalysts for wastewater treatment. However, due to the compositional limitations imposed by glass-forming ability, promoting catalytic degradation ability of MGs while retaining their disordered structure becomes challenging in alloy design. Inspired by the regulation function of electronic structure combined with atomic size-dependent structural disordering by nitrogen (N), herein, the microalloying of 0.2 at.% N in Fe₇₈Si₉B₁₃ MG is reported to show a significantly improved catalytic efficiency and stability for the degradation of rhodamine B (RhB) dye. Mechanistic investigations suggest that N microalloying effectively regulates the electron transfer efficiency and suppresses the surface coverage of oxides on Fe₇₈Si₉B₁₃ MG, thereby exposing abundant active sites (Fe⁰) for degradation reaction. In addition, the refinement of post-reaction surface products contributes to a strong diffusion and capture of reactants (e.g. H₂O₂ and dye molecules), facilitating the H₂O₂ activation and radical generation for enhanced degradation stability. This study provides a new perspective for material design in MG catalysts.</div></div>","PeriodicalId":331,"journal":{"name":"Intermetallics","volume":"189 ","pages":"Article 109099"},"PeriodicalIF":4.8,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145594872","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":"Enhanced magnetostriction of polycrystalline Fe-Ga alloy by trace Pr doping","authors":"Haizheng Yu ,&nbsp;Te Yao ,&nbsp;Jiande Liu ,&nbsp;Zhenghua He ,&nbsp;Hongbo Hao ,&nbsp;Shengyuan Wang ,&nbsp;Xunye Zhang ,&nbsp;Siqian Zhang ,&nbsp;Yuhui Sha ,&nbsp;Xiaofei Zhu ,&nbsp;Lijia Chen","doi":"10.1016/j.intermet.2025.109138","DOIUrl":"10.1016/j.intermet.2025.109138","url":null,"abstract":"<div><div>Excellent magnetostriction in Fe-Ga alloy depends on the grain orientation and the characteristics of nanoheterogeneity. In this paper, a synergistic regulation of the preferred &lt;100&gt;-oriented texture and nano-sized L6₀ phase was obtained in arc-melting of polycrystalline (Fe₈₁Ga₁₉)_{100-<em>x</em>}Pr_<em>x</em> alloys. A saturation magnetostriction (3/2<em>λ</em>_s) of (Fe₈₁Ga₁₉)_99.95Pr_0.05 alloy is improved to 374 ppm, representing a 160 % enhancement as compared to Fe₈₁Ga₁₉ alloy, approaching the magnetostriction of single crystals by rapid single crystal growth and Fe-Ga-RE thin sheets by secondary recrystallization. The effect of Pr element on the magnetostriction of Fe₈₁Ga₁₉ alloy is analyzed at the millimeter scale (grain orientation), micrometer scale (precipitation), and nanometer scale (nanoheterogeneity). The significant enhancement of the magnetostriction in (Fe₈₁Ga₁₉)_99.95Pr_0.05 alloy is attributed to the larger lattice distortion in the A2 matrix due to the dispersedly distributed nano-sized L6₀ phases in the entire columnar matrix grains with η texture.</div></div>","PeriodicalId":331,"journal":{"name":"Intermetallics","volume":"189 ","pages":"Article 109138"},"PeriodicalIF":4.8,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145836811","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":"Effect of Co on microstructure and properties of iron-rich AlCoxCrFe2.5Ni (x = 0, 0.2, 0.5, 1.0) high entropy alloys","authors":"Guojin Zhang ,&nbsp;Hongqiao Feng ,&nbsp;Guanghang Shi ,&nbsp;Yinong Wang ,&nbsp;Xi Chen","doi":"10.1016/j.intermet.2025.109132","DOIUrl":"10.1016/j.intermet.2025.109132","url":null,"abstract":"<div><div>To develop cost-effective and thermally stable iron-rich AlCoCrFeNi system high entropy alloys, this study systematically investigated the microstructure, mechanical properties, and phase stability of AlCo_xCrFe_2.5Ni (x = 0, 0.2, 0.5, 1.0) high entropy alloys. For x = 0, 0.2, and 0.5, the alloy exhibits a dendritic morphology. In the dendrite region, the matrix is the A2 (disordered BCC) phase, and the B2 (ordered BCC) phase exists as particles. In the interdendritic region, the A2 and B2 phases are arranged in a weave-like pattern. Notably, increasing the Co content reduces the dendritic area, and the dendritic morphology disappears entirely at x = 1.0. After annealing at 600 °C, 800 °C, 1000 °C, and 1200 °C for 5 h, it was found that lowering the Co content enhances phase stability, suppresses FCC phase precipitation, and mitigates high temperature softening. CALPHAD phase diagram calculations further confirm that when the alloy is Co-poor, the A2/B2 structure can be retained over a wide temperature range. When x = 0, the alloy achieves a high yield strength (1205 MPa) and compressive ductility (&gt;50 %) at room temperature, while retaining good strength below 600 °C. The B2 particles have a remarkable strengthening effect. As the Co content decreases, the area of the high-strength dendritic regions containing B2 particles expands, which is the primary mechanism for the alloy's strength retention.</div></div>","PeriodicalId":331,"journal":{"name":"Intermetallics","volume":"189 ","pages":"Article 109132"},"PeriodicalIF":4.8,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145786552","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":"Coupling relationship between microstructure and high-temperature oxidation mechanism in alloying element-guided eutectic high-entropy alloys","authors":"Shan Wang ,&nbsp;Yan Cui ,&nbsp;Yangchuan Cai ,&nbsp;Xiaohua Wang ,&nbsp;Jinyao Mu ,&nbsp;Yan Zhao","doi":"10.1016/j.intermet.2025.109055","DOIUrl":"10.1016/j.intermet.2025.109055","url":null,"abstract":"<div><div>This study investigates the high-temperature oxidation behavior of three high-entropy alloys (HEAs) with distinct eutectic microstructures: hypoeutectic FeCoNi_2.0Cr_1.2Mo_0.2Nb_0.5 (Nb_0.5), eutectic FeCoNi_2.0Cr_1.2Mo_0.2Nb_0.63 (Nb_0.63), and hypereutectic FeCoNi_2.0Cr_1.2Mo_0.2Nb_0.9 (Nb_0.9). All three HEAs exhibit a dual-phase microstructure comprising FCC and HCP phases. The oxidation behavior was evaluated after 100 h of isothermal exposure at 600 °C and 800 °C. The results demonstrate that the oxidation kinetics of all alloys follow a parabolic rate law, indicating diffusion-controlled mechanisms. Characterization via XRD, XPS, and SEM revealed that the oxide scale is predominantly Cr₂O₃, which preferentially nucleates at grain boundaries and subsequently covers the entire surface. Among these, the Nb_0.63 EHEA exhibited the highest oxidation resistance, rapidly forming a continuous and dense Cr₂O₃ scale in the initial oxidation stage, which effectively impeded the outward diffusion of metal ions and the inward diffusion of oxygen. During oxidation at 800 °C, acicular Nb-rich precipitates formed within the FCC phase of all three alloys. These precipitates act as more effective barriers against oxygen ion diffusion than the parent phase, further enhancing the oxidation resistance. This work elucidates the synergistic mechanism between the eutectic microstructure and precipitation behavior on the oxidation resistance of HEAs, providing a theoretical and experimental basis for designing novel high-entropy alloys with superior high-temperature oxidation resistance.</div></div>","PeriodicalId":331,"journal":{"name":"Intermetallics","volume":"188 ","pages":"Article 109055"},"PeriodicalIF":4.8,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145424916","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 Si/Mn ratio to optimize magnetocaloric performance of FeCoNi-based high-entropy alloys","authors":"Xiaojiang Zhai ,&nbsp;Xiaodong Si ,&nbsp;Yunshan Dong ,&nbsp;Yongsheng Liu","doi":"10.1016/j.intermet.2025.109024","DOIUrl":"10.1016/j.intermet.2025.109024","url":null,"abstract":"<div><div>This study systematically investigates the influence of the Si/Mn ratio on the magnetocaloric properties of FeCoNiSi_xMn_0.4-x (x = 0.1, 0.2, and 0.3) high-entropy alloys (HEAs) using a multi-scale computational approach. By combining special quasi-random structure (SQS) modeling, first-principles density functional theory (DFT) calculations, and atomic-scale magnetic simulations, we elucidate the synergistic effects of compositional disorder on the electronic structure and magnetic ordering. Key results indicate that increasing the Si content reduces the cell volume via atomic size effects and decreases the total magnetic moment, while significantly raising the Curie temperature (599–673 K) due to enhanced ferromagnetic exchange coupling. Under an applied field of 5 T, an optimized magnetocaloric response is observed: at x = 0.3, the magnetic entropy change exhibits a full width at half maximum of 2.61 J/(kg·K) along with a high relative cooling power (RCP = 515 J/kg), while a peak temperature-averaged entropy change (TEC) of 3.17 J/(kg·K) is achieved at x = 0.2 over a temperature span of 10 K (ΔT_H-C = 10 K). The maximum half-peak width of the magnetic entropy change (δT_FWHM) for this alloy system ranges from 156.0 K to 196.1 K. This work reveals an underlying composition–electronic–magnetic correlation mechanism, suggesting promising potential for designing high-temperature solid-state refrigeration materials with broad operational windows.</div></div>","PeriodicalId":331,"journal":{"name":"Intermetallics","volume":"188 ","pages":"Article 109024"},"PeriodicalIF":4.8,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145334819","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":"Texture control in new biomedical Nb30Ti30Zr30Cr5Mo5 medium entropy alloy through high temperature uniaxial compression for Young's modulus reduction","authors":"Pramote Thirathipviwat ,&nbsp;Ryota Muraki ,&nbsp;Wakaba Onuki ,&nbsp;Daichi Minami ,&nbsp;Jithin Vishnu ,&nbsp;Ansheed Raheem ,&nbsp;Kesavan Praveenkumar ,&nbsp;Geetha Manivasagam ,&nbsp;Equo Kobayashi ,&nbsp;Makoto Hasegawa","doi":"10.1016/j.intermet.2025.109062","DOIUrl":"10.1016/j.intermet.2025.109062","url":null,"abstract":"<div><div>In this study, we investigate the potential of texture control for preferred {001} orientation to reduce the Young's modulus in the new biomedical body-centered cubic (BCC) Nb₃₀Ti₃₀Zr₃₀Cr₅Mo₅ MEA. The fabrication of {001} oriented grains on a compression plane is controlled by so-called preferential dynamic grain growth under high temperature uniaxial compression. The uniaxial compression is carried out at temperature between 1073 and 1473 K by a true strain rate between 1 × 10⁻⁴ – 1 × 10⁻² s⁻¹ until −1.0 in true strain. The microstructures after the compression at 1473 K are significantly developed by dynamic recrystallization. A decrease in true strain rate promotes a formation of {001} oriented grains due to enhanced preferential dynamic grain growth. The highest volume fraction of {001} texture (∼64 %) is observed after the compression at 1473 K under the strain rate of 5.0 × 10⁻⁴ s⁻¹. An increase in volume fraction of {001} texture decrease the Young's modulus. The Young's modulus in this study can reduce as low as 68 GPa, compared with ∼93 GPa in the initial sample prior to high-temperature deformation.</div></div>","PeriodicalId":331,"journal":{"name":"Intermetallics","volume":"188 ","pages":"Article 109062"},"PeriodicalIF":4.8,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145474251","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":"Microstructure and room- and high-temperature mechanical properties of a bimodal-structured as-extruded Al–La–Mg–Fe alloy with high Fe content","authors":"Tao Ban ,&nbsp;Zhi Wang ,&nbsp;Liejun Li ,&nbsp;Zhuoran Li ,&nbsp;Jixiang Gao ,&nbsp;Zhiwei Zou ,&nbsp;Zhenyuan Hou ,&nbsp;Yongji Chen ,&nbsp;Xinkui Zhang ,&nbsp;Zhengwu Peng","doi":"10.1016/j.intermet.2025.109066","DOIUrl":"10.1016/j.intermet.2025.109066","url":null,"abstract":"<div><div>In this study, a bimodal-grained as-extruded Al–11.53La–3.41Mg–3.25Fe (wt.%) alloy was developed based on a near-eutectic Al–La system by incorporating a high Fe content and Mg solid solution. The as-extruded alloy exhibited good strength–toughness balance due to the synergistic effects of multiple strengthening mechanisms, including solid solution strengthening from Mg, Orowan strengthening induced by submicron- and micron-sized Al₁₁La₃ and Al₁₃Fe₄ phases, and high hetero-deformation-induced (HDI) strengthening arising from HDI stress at the interfaces between the matrix and intermetallics as well as between coarse and fine grains. In addition, a layered intermetallic compound was observed, consisting of an Al₁₃(Fe, La)₄ shell and an Al₁₃Fe₄ core, which is primarily attributed to the preferential solidification of the Al₁₃Fe₄ phase and the subsequent enrichment of La atoms. The layered intermetallic compound exhibited excellent coarsening resistance even at 500 °C, and in conjunction with the proven thermally stable strengthening phases (Al₁₁La₃ and Al₁₃Fe₄), it endowed the alloy with outstanding high-temperature mechanical properties, achieving a tensile strength of 155 ± 7 MPa and an elongation of 20.8 ± 3.4 % at 300 °C.</div></div>","PeriodicalId":331,"journal":{"name":"Intermetallics","volume":"188 ","pages":"Article 109066"},"PeriodicalIF":4.8,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145474249","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}