Journal of Materials Science & Technology最新文献_第8页

Lightweight anomalous eutectic Al21Ti21V16Ni21Co21 high entropy alloy with superior thermal stability 具有优异热稳定性的轻质反常共晶Al21Ti21V16Ni21Co21高熵合金

IF 10.9 1区材料科学

Journal of Materials Science & Technology Pub Date : 2025-09-09 DOI: 10.1016/j.jmst.2025.08.036

Nadeem Fayaz Lone, Babak Shalchi-Amirkhiz, Frank Czerwinski, Daolun Chen

{"title":"Lightweight anomalous eutectic Al21Ti21V16Ni21Co21 high entropy alloy with superior thermal stability","authors":"Nadeem Fayaz Lone, Babak Shalchi-Amirkhiz, Frank Czerwinski, Daolun Chen","doi":"10.1016/j.jmst.2025.08.036","DOIUrl":"https://doi.org/10.1016/j.jmst.2025.08.036","url":null,"abstract":"A novel dual phase Al21Ti21V16Ni21Co21 lightweight high entropy alloy (LW-HEA) with a density of 6.19 g/cm3 was successfully synthesized by vacuum induction melting in a relatively large form of bulk 10 kg ingot, and its thermal stability was tested by exposures at temperatures up to 1100 °C. The as-cast alloy with an anomalous eutectic structure consisting of Ni-Co-Al-Ti-rich Heusler-like L21 phase and V-rich BCC phase with precipitates distributed in the latter, exhibited a hardness of 578 HV, yield stress, ultimate compressive stress and strain to failure of 1417 MPa, 2312 MPa, and 13.7%, respectively. After heating, the alloy preserved both phases with their initial composition, general microstructural features, and showed nearly 100% retention of initial mechanical properties. The excellent performance is attributed to the synergistic strengthening mechanisms including hetero-deformation induced strengthening and inhabitation of dislocation movement. The excellent strength of as-cast Al21Ti21V16Ni21Co21 alloy and the strength retention after thermal exposures show that its service temperature limit is superior to most HEAs and conventional superalloys developed for high-temperature applications.","PeriodicalId":16154,"journal":{"name":"Journal of Materials Science & Technology","volume":"24 1","pages":""},"PeriodicalIF":10.9,"publicationDate":"2025-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145025402","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

S-scheme Mo-WO3/CeO2 microspheres photoanode enabling high-efficiency power generation in H2O2 photoelectrochemical cell s方案Mo-WO3/CeO2微球光阳极实现H2O2光电电化学电池的高效发电

IF 10.9 1区材料科学

Journal of Materials Science & Technology Pub Date : 2025-09-09 DOI: 10.1016/j.jmst.2025.08.034

Yutong Liu, Yingying Guan, Xiaosong Han, Yang Zhao, Hua Song, Ju Won Lim, Huan Wang

{"title":"S-scheme Mo-WO3/CeO2 microspheres photoanode enabling high-efficiency power generation in H2O2 photoelectrochemical cell","authors":"Yutong Liu, Yingying Guan, Xiaosong Han, Yang Zhao, Hua Song, Ju Won Lim, Huan Wang","doi":"10.1016/j.jmst.2025.08.034","DOIUrl":"https://doi.org/10.1016/j.jmst.2025.08.034","url":null,"abstract":"This study introduces a significant advancement in sustainable energy conversion through a novel hydrogen peroxide (H2O2) photoelectrochemical cell system. By integrating an oxygen vacancy-rich Mo-doped WO3 (Mo-WO3)/CeO2 S-scheme heterojunction photoanode with a cornstalk-derived porous carbon/Fe-phthalocyanine (PC/FeIIPc) cathode, the system achieves efficient solar-driven H2O2 production and direct electricity generation via in situ H2O2 fuel utilization. The Mo-WO3/CeO2 heterojunction synergizes with Mo doping-induced oxygen vacancies (OVs) and S-scheme charge transfer pathways, significantly enhancing light absorption and charge separation. This design enables a remarkable H2O2 yield of 0.044 M and a maximum power density of 5.79 mW cm−2, surpassing the pristine WO3-based cell by 4 and 2.55 times, respectively. Additionally, the cell exhibits robust dark-phase energy storage with a capacitance of 57834 mF cm−2, which has a 54% capacity retention over 12 h. Combined experimental and theoretical analyses reveal that oxygen vacancies in Mo-WO3 act as electron traps, while the S-scheme heterojunction’s internal electric field directs charge flow, collectively suppressing recombination and preserving redox potentials. This work establishes a green paradigm for simultaneous solar energy harvesting, chemical fuel storage, and on-demand electricity generation.","PeriodicalId":16154,"journal":{"name":"Journal of Materials Science & Technology","volume":"307 1","pages":""},"PeriodicalIF":10.9,"publicationDate":"2025-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145017630","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

Enhanced strength-toughness synergy and high temperature stability of a novel ODS steel with core-shell nanoparticles 核壳纳米颗粒增强ODS钢的强韧协同和高温稳定性

IF 10.9 1区材料科学

Journal of Materials Science & Technology Pub Date : 2025-09-09 DOI: 10.1016/j.jmst.2025.08.035

Yaozhi Li, Qitao Wang, Xinle Li, Mengjie Yin, Xiang Rui, Kepeng Song, Yanfen Li

{"title":"Enhanced strength-toughness synergy and high temperature stability of a novel ODS steel with core-shell nanoparticles","authors":"Yaozhi Li, Qitao Wang, Xinle Li, Mengjie Yin, Xiang Rui, Kepeng Song, Yanfen Li","doi":"10.1016/j.jmst.2025.08.035","DOIUrl":"https://doi.org/10.1016/j.jmst.2025.08.035","url":null,"abstract":"A novel oxide dispersion strengthened (ODS) steel with 9 wt.% Cr is designed to improve the performance of materials for applications in the advanced nuclear energy systems. After heat treatment, coherent core-shell nanoparticles consisting of Y3TaO7 as cores and VN as shells are formed. It contributes to an excellent balance of tensile strength of 1028 MPa and impact toughness of 87.5 J/cm2 at room temperature, superior to most ODS steels fabricated by powder metallurgy. Even after exposure at an elevated temperature of 700°C up to 15000 h, the structure of core-shell, average size and number density of nanoparticles remain excellent stability, benefiting from the better inhibition of VN shells to element diffusion and lower interfacial energies between the coherent nanoparticles and matrix. The nanoparticles effectively impede the microstructural recovery by strongly pinning the movement of grain boundaries and dislocations. Thus, 9Cr-ODS steel exhibits outstanding stability of mechanical properties during long-term high temperature. These findings provide important insights into alloy design strategies for next-generation ODS steels intended for extreme environments, including high temperatures and intense neutron irradiation.","PeriodicalId":16154,"journal":{"name":"Journal of Materials Science & Technology","volume":"130 1","pages":""},"PeriodicalIF":10.9,"publicationDate":"2025-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145017629","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

Design and high-precision heated vat photopolymerization fabrication of bio-inspired gradient porous zirconia toughened alumina ceramics 仿生梯度多孔氧化锆增韧氧化铝陶瓷的设计与高精度热缸光聚合制备

IF 10.9 1区材料科学

Journal of Materials Science & Technology Pub Date : 2025-09-09 DOI: 10.1016/j.jmst.2025.08.038

Lijin Cheng, Pengxiang Hao, Weiwei Yan, Hao Zeng, Xinxin Qi, Hao Zhu, Jun Xiao, Libin Zhao, Ning Hu

{"title":"Design and high-precision heated vat photopolymerization fabrication of bio-inspired gradient porous zirconia toughened alumina ceramics","authors":"Lijin Cheng, Pengxiang Hao, Weiwei Yan, Hao Zeng, Xinxin Qi, Hao Zhu, Jun Xiao, Libin Zhao, Ning Hu","doi":"10.1016/j.jmst.2025.08.038","DOIUrl":"https://doi.org/10.1016/j.jmst.2025.08.038","url":null,"abstract":"Zirconia-toughened alumina (ZTA) ceramics exhibit outstanding potential for load-bearing orthopedic implants like intervertebral fusion cages, owing to their excellent mechanical properties and biocompatibility. However, the high elastic modulus and inherent brittleness of ZTA ceramics pose manufacturing challenges that limit clinical applications. Biomimetic structural design combined with vat photopolymerization 3D printing offers a promising solution for developing personalized ZTA fusion cages. Nevertheless, ultraviolet (UV) light scattering from the ceramic. Particles reduce printing resolution, leading to significant variations in the designed mechanical performance. In this study, bio-inspired porous ZTA ceramic fusion cages were developed, featuring a solid outer shell (0.25–0.5 mm thickness) with 50% core average porosity and 20%–60% porosity gradient. Mechanical simulations reveal that their mechanical compatibility with human autogenous bone tissue originates from the porosity gradient architecture and enlarged load-bearing zone, which optimizes stress distribution to enhance bearing capacity. For high-precision additive manufacturing of ZTA ceramic green bodies, a heated vat photopolymerization (H-VPP) technique was developed. By elevating the forming temperature, the exposure energy density required to achieve the same cured depth is reduced, which minimizes horizontal UV light scattering. The sintered ZTA ceramic fusion cages successfully replicate human autogenous bone tissue characteristics, exhibiting compressive strength of 32–198 MPa and elastic modulus of 2.4–6.6 GPa.","PeriodicalId":16154,"journal":{"name":"Journal of Materials Science & Technology","volume":"49 1","pages":""},"PeriodicalIF":10.9,"publicationDate":"2025-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145025446","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

Revisiting the evolution of strength and microstructure of aluminum alloy 7055 during continuous retrogression and re-ageing treatment 回顾7055铝合金在连续回时效和再时效过程中强度和组织的演变

IF 10.9 1区材料科学

Journal of Materials Science & Technology Pub Date : 2025-09-09 DOI: 10.1016/j.jmst.2025.08.037

Benshi He, Xiaodong Wu, Bin Liao, Yurong Yang, Songbai Tang, Qianqian Zhu, Yuhao Xiong, Zhihong Jia, Yi Meng, Lingfei Cao

{"title":"Revisiting the evolution of strength and microstructure of aluminum alloy 7055 during continuous retrogression and re-ageing treatment","authors":"Benshi He, Xiaodong Wu, Bin Liao, Yurong Yang, Songbai Tang, Qianqian Zhu, Yuhao Xiong, Zhihong Jia, Yi Meng, Lingfei Cao","doi":"10.1016/j.jmst.2025.08.037","DOIUrl":"https://doi.org/10.1016/j.jmst.2025.08.037","url":null,"abstract":"The evolution of strength and microstructure in aluminum alloy 7055 during a continuous retrogression and re-aging (CRRA) treatment with two retrogression cooling rates was systematically investigated. The results reveal that GP II zones serve as the primary strengthening phase after the pre-ageing stage, characterized by Zn/Mg and (Zn + Cu)/Mg ratios of 1.24 and 1.36, respectively. During the retrogression treatment, these particles progressively transform into η′ phases, preventing strength reduction for the duration up to 90 min. Meanwhile, solute Cu atoms partition into aggregates (clusters, GP II zones, and η′ phases) by substituting for Zn and Al atoms rather than Mg atoms, resulting in compositional differences between aggregates in CRRA-treated samples and the pre-aged sample. Additionally, air cooling (3300°C/h) following the retrogression treatment facilitates strength improvement through secondary precipitation, while furnace cooling (45°C/h) further improves the electrical conductivity and increases Cu content in both matrix precipitates and grain boundary precipitates without deteriorating the yield strength.","PeriodicalId":16154,"journal":{"name":"Journal of Materials Science & Technology","volume":"164 1","pages":""},"PeriodicalIF":10.9,"publicationDate":"2025-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145025403","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

Regulating intermediates adsorption/desorption behavior in multilayered 2D MoS2-(Ni, Fe)Sx/rGO heterostructure via built-in electric field-driven electron transfer for water splitting and zinc-air battery 通过内置电场驱动电子转移调节多层二维MoS2-(Ni, Fe)Sx/rGO异质结构中中间体吸附/解吸行为，用于水裂解和锌-空气电池

IF 10.9 1区材料科学

Journal of Materials Science & Technology Pub Date : 2025-09-08 DOI: 10.1016/j.jmst.2025.06.058

Xinyi Wang, Adekunle Adedapo Obisanya, Li Hou, Xiwen Tao, Yuan Gao, Jing Jin, Keju Sun, Yanfeng Wang, Faming Gao

{"title":"Regulating intermediates adsorption/desorption behavior in multilayered 2D MoS2-(Ni, Fe)Sx/rGO heterostructure via built-in electric field-driven electron transfer for water splitting and zinc-air battery","authors":"Xinyi Wang, Adekunle Adedapo Obisanya, Li Hou, Xiwen Tao, Yuan Gao, Jing Jin, Keju Sun, Yanfeng Wang, Faming Gao","doi":"10.1016/j.jmst.2025.06.058","DOIUrl":"https://doi.org/10.1016/j.jmst.2025.06.058","url":null,"abstract":"Deliberate construction of 2D/2D heterostructure with interfacial built-in electric field (BIEF) is a reliable strategy to address sluggish reaction kinetics through electronic structure optimization and reaction microenvironment modulation. Herein, a novel multilayered MoS2-(Ni, Fe)Sx/rGO hierarchical hybrid was synthesized via interfacial BIEF and dimensional engineering, featuring metallic-phase MoS2 (1T-MoS2) nanosheets and (Ni, Fe)Sx nanoflakes vertically anchored on rGO. This 2D/2D heterostructure allows large interface contact area via interfacial S-bridge spatial confinement, which provides abundant transport pathways for BIEF-derived large electron transfer from (Ni, Fe)Sx to 1T-MoS2, thus favoring rapid reaction kinetics. Benefiting from the strong interfacial electron coupling and synergistic co-catalytic effects, the as-obtained MoS2-(Ni, Fe)Sx/rGO displays extraordinary multifunctional catalytic activity, as confirmed in extremely low overpotentials at 10 mA cm−2 for HER (38 mV) and OER (213 mV), along with a positive half-wave potential for ORR (0.82 V), thus delivering excellent efficiency and stability in water splitting and zinc-air batteries. Combining theoretical calculations and the in-situ characterizations, the reconfiguration of electronic structure and appropriate d-band center, driven by asymmetrical charge distributions arising from the interface-induced BIEF, endows key intermediates with balanced adsorption/desorption capability, thereby enhancing intrinsic catalytic activity and reducing reaction energy barriers.","PeriodicalId":16154,"journal":{"name":"Journal of Materials Science & Technology","volume":"103 1","pages":""},"PeriodicalIF":10.9,"publicationDate":"2025-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145009368","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

Local chemical disorder and its anomalous impacts in chemically complex intermetallic alloys 化学复杂金属间合金的局部化学紊乱及其异常影响

IF 10.9 1区材料科学

Journal of Materials Science & Technology Pub Date : 2025-09-08 DOI: 10.1016/j.jmst.2025.08.033

W.C. Xiao, X. Li, J.X. Zhang, Y.M. Zhao, J. Ju, Z.K. Zhao, Y.X. Wang, J.H. Luan, Y.H. Zhou, Y.L. Zhao, T. Yang

{"title":"Local chemical disorder and its anomalous impacts in chemically complex intermetallic alloys","authors":"W.C. Xiao, X. Li, J.X. Zhang, Y.M. Zhao, J. Ju, Z.K. Zhao, Y.X. Wang, J.H. Luan, Y.H. Zhou, Y.L. Zhao, T. Yang","doi":"10.1016/j.jmst.2025.08.033","DOIUrl":"https://doi.org/10.1016/j.jmst.2025.08.033","url":null,"abstract":"The newly emerged chemically complex intermetallic alloys (CCIMAs) are expected to achieve breakthrough advancements in metallic materials. However, many existing CCIMAs still suffer from limited yield strength due to the single-phase structure, seriously limiting their widespread applications. Here, we successfully resolve this critical issue by controllably introducing the local chemical disorder (LCD) with face-centered-cubic (FCC) structure into the L12-type Ni-Co-Si-Ti-Al-based CCIMA, achieving a superior yield strength of ∼1033 MPa and ultimate tensile strength of ∼1730 MPa, and outstanding tensile elongation of ∼29%. The unique LCD produces an anomalous strengthening effect, which is estimated to be ∼345 MPa. Meanwhile, these disordered nanoparticles with lower stacking fault energy also promote the nucleation of superlattice intrinsic stacking fault (SISF) networks in the CCIMA, contributing to a high strain-hardening rate in the late stage of plastic deformation. This work provides a new insight into developing a strong yet ductile CCIMA for advanced structural applications.","PeriodicalId":16154,"journal":{"name":"Journal of Materials Science & Technology","volume":"71 1","pages":""},"PeriodicalIF":10.9,"publicationDate":"2025-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145009370","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

Modulation of high-frequency core loss of soft magnetic amorphous alloys through stress release and local structural ordering 应力释放和局部结构有序对软磁非晶合金高频铁心损耗的调节

IF 10.9 1区材料科学

Journal of Materials Science & Technology Pub Date : 2025-09-08 DOI: 10.1016/j.jmst.2025.05.082

You Wu, Wenhui Guo, Lingxiang Shi, Jili Jia, Ranbin Wang, Yunshuai Su, Hengtong Bu, Yang Shao, Kefu Yao

{"title":"Modulation of high-frequency core loss of soft magnetic amorphous alloys through stress release and local structural ordering","authors":"You Wu, Wenhui Guo, Lingxiang Shi, Jili Jia, Ranbin Wang, Yunshuai Su, Hengtong Bu, Yang Shao, Kefu Yao","doi":"10.1016/j.jmst.2025.05.082","DOIUrl":"https://doi.org/10.1016/j.jmst.2025.05.082","url":null,"abstract":"Minimizing core loss of soft magnetic amorphous alloys is of crucial importance for developing high-efficiency electrical and electronic devices. Despite the complex and diverse physical origins of the loss characteristics at different frequencies, reducing the coercivity has long been regarded as one of the main approaches to reducing core losses. Here, we report a new approach to control core loss in soft magnetic amorphous alloys, achieving an exceptional reduction of up to 65% in high-frequency losses of a commercial Fe78Si9B13 alloy, even when the coercivity is increased approximately threefold beyond its optimal value. This phenomenon is attributed to local structural ordering caused by over-annealing, which forms a unique mechanism dominated by the nucleation and growth of reversed magnetic domains. Hence, the excess core loss primarily resulting from local eddy currents around the moving domain walls is significantly reduced, leading to remarkably low high-frequency core loss. Through a systematic study on the variation of core loss, a two-stage model based on stress release and local structural ordering is proposed to elucidate the mechanism of annealing-induced core loss modulation. These findings provide a groundbreaking and practical strategy for the core loss control of soft magnetic amorphous alloys and pave the way for their enhanced performance in high-frequency applications.","PeriodicalId":16154,"journal":{"name":"Journal of Materials Science & Technology","volume":"28 1","pages":""},"PeriodicalIF":10.9,"publicationDate":"2025-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145009371","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

Spatiotemporal characterization and prediction of microstructure evolution and deformation behavior under creep-oxidation interaction in nickel-based single crystal superalloys 镍基单晶高温合金蠕变-氧化相互作用下微观组织演变及变形行为的时空表征与预测

IF 10.9 1区材料科学

Journal of Materials Science & Technology Pub Date : 2025-09-08 DOI: 10.1016/j.jmst.2025.08.028

Rongqiao Wang, Wenchao You, Bin Zhang, Xiao Su, Zhengzhe Lv, Mingrui Li, Haiyan Liu, Dianyin Hu

{"title":"Spatiotemporal characterization and prediction of microstructure evolution and deformation behavior under creep-oxidation interaction in nickel-based single crystal superalloys","authors":"Rongqiao Wang, Wenchao You, Bin Zhang, Xiao Su, Zhengzhe Lv, Mingrui Li, Haiyan Liu, Dianyin Hu","doi":"10.1016/j.jmst.2025.08.028","DOIUrl":"https://doi.org/10.1016/j.jmst.2025.08.028","url":null,"abstract":"Creep–oxidation interaction is a critical factor affecting the long-term performance of high-temperature structural materials. To investigate the effect of oxidation on creep performance, creep tests were conducted on a nickel-based single crystal superalloy DD6 under various temperatures and stresses (980°C/250–350 MPa and 1100°C/140–180 MPa) in both vacuum and air environments. SEM observations and EDS analysis revealed the oxidation-induced degradation of creep performance and the spatiotemporal evolution of microstructures under vacuum and air environments. Based on these findings, a semi-phenomenological model describing the spatiotemporal evolution of microstructures was proposed, with predicted errors for the γ′ phase volume fraction and γ channel width within 7% and 15%, respectively. An oxidation-affected multilayer model reflecting physical mechanisms such as microstructure evolution and dislocation strengthening was further developed. The predicted results for creep deformation and creep life showed excellent agreement with experimental data, with the majority of creep deformation predictions falling within a ±15% prediction band, and the creep life predictions falling within a ±1.3 scatter band. This research provides a novel approach for predicting the deformation behavior of nickel-based single crystal superalloy under creep-oxidation interaction, which is crucial for assessing creep life and improving structural design of turbine blades.","PeriodicalId":16154,"journal":{"name":"Journal of Materials Science & Technology","volume":"16 1","pages":""},"PeriodicalIF":10.9,"publicationDate":"2025-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145009369","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

Fatigue cracking criterion induced by defects in high-strength steel 高强钢缺陷诱发疲劳裂纹判据

IF 10.9 1区材料科学

Journal of Materials Science & Technology Pub Date : 2025-09-08 DOI: 10.1016/j.jmst.2025.07.043

Ziheng Shao, Zikuan Xu, Yankun Zhu, Bin Wang, Yanfei Cao, Xuezhong Gu, Hanzhong Liu, Peng Zhang, Hongwei Liu, Dianzhong Li, Zhefeng Zhang

{"title":"Fatigue cracking criterion induced by defects in high-strength steel","authors":"Ziheng Shao, Zikuan Xu, Yankun Zhu, Bin Wang, Yanfei Cao, Xuezhong Gu, Hanzhong Liu, Peng Zhang, Hongwei Liu, Dianzhong Li, Zhefeng Zhang","doi":"10.1016/j.jmst.2025.07.043","DOIUrl":"https://doi.org/10.1016/j.jmst.2025.07.043","url":null,"abstract":"Defects affect fatigue performance of high-strength steels significantly, which can be quantitatively enunciated from the perspective of defect size, but not from the perspective of defect shape and type to date. In this work, fatigue crack initiation behaviors at various kinds of high-strength steels containing defects with different shapes and types are comprehensively analyzed. Based on Murakami’s model quantitatively expounding the effect of defect size on the fatigue cracking behaviors of high-strength steels, the damage factors considering defect shape and type, which reflect the intrinsic characteristics of defects, are rationally proposed and introduced. Accordingly, the effects of defect size, shape and type on the fatigue cracking mechanisms of high-strength steels are revealed quantitatively. Finally, a unified fatigue cracking criterion induced by defects in high-strength steels is established, achieving the normalized quantitative description of fatigue cracking behaviors induced by different kinds of defects. The critical size criterion for different kinds of defects inducing the fatigue crack initiation behaviors of high-strength steels is revealed, and a reasonable design strategy for enhancing the fatigue resistance of high-strength steels with multiple kinds of defects is proposed.","PeriodicalId":16154,"journal":{"name":"Journal of Materials Science & Technology","volume":"24 1","pages":""},"PeriodicalIF":10.9,"publicationDate":"2025-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145017376","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