Scripta Materialia最新文献_第8页

Achieving strength-ductility synergy in Mg-Gd-Y-Zn-Al alloy via toughening effect of nano-sized W-Mg3RE2Zn3 phases within LPSO structures 通过纳米W-Mg3RE2Zn3相在LPSO结构中的增韧作用，实现Mg-Gd-Y-Zn-Al合金的强度-塑性协同作用

IF 5.6 2区材料科学

Scripta Materialia Pub Date : 2025-08-19 DOI: 10.1016/j.scriptamat.2025.116938

Yinyuan Chen , Huan Liu , Xiaoyu Qin , Ziwei Yuan , Chao Sun , Yuna Wu , Kai Yan , Jia Ju , Jinghua Jiang , Jing Bai

引用次数: 0

Theoretical investigation of Mo2CN2 MXene as anodes for Mg/ K/ Ca-ion batteries mo2cn2mxene作为Mg/ K/ ca离子电池阳极的理论研究

IF 5.6 2区材料科学

Scripta Materialia Pub Date : 2025-08-19 DOI: 10.1016/j.scriptamat.2025.116936

Jiajun Zhu, Haiyan Wang, Wenxi Chen, Mengjie Wei, Qinghua Wu, Qianku Hu, Aiguo Zhou

{"title":"Theoretical investigation of Mo2CN2 MXene as anodes for Mg/ K/ Ca-ion batteries","authors":"Jiajun Zhu, Haiyan Wang, Wenxi Chen, Mengjie Wei, Qinghua Wu, Qianku Hu, Aiguo Zhou","doi":"10.1016/j.scriptamat.2025.116936","DOIUrl":"10.1016/j.scriptamat.2025.116936","url":null,"abstract":"<div><div>The continued expansion of the global consumer electronics market has underscored the limited availability of lithium resources, prompting the development of alternative metal-ion battery technologies. Two-dimensional MXene materials have emerged as promising electrode candidates due to their exceptional electrical conductivity, high energy density, large specific surface area, and mechanical strength. The performance of N-functionalized Mo₂C as anodes for Mg, K, and Ca metal-ion batteries is investigated through first-principles calculations. Monolayer Mo₂CN₂ exhibits excellent metallic properties, structural stability, low diffusion barriers, and suitable open-circuit voltages. With multilayer adsorption, the maximum loading concentrations of Mg, K, and Ca on Mo₂CN₂ yield the stoichiometries Mo₂CN₂Mg₃.₅, Mo₂CN₂K₂.₅, and Mo₂CN₂Ca₄, corresponding to theoretical capacities of 809, 289, and 924 mA·h/g, respectively. These findings provide valuable insights for developing high-capacity, sustainable energy storage solutions.</div></div>","PeriodicalId":423,"journal":{"name":"Scripta Materialia","volume":"270 ","pages":"Article 116936"},"PeriodicalIF":5.6,"publicationDate":"2025-08-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144863770","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

Enhancing the helium retaining ability of metal tritide by multi-principle element alloying with severe lattice distortion 用严重晶格畸变的多原理元素合金化提高金属三极管的蓄氦能力

IF 5.6 2区材料科学

Scripta Materialia Pub Date : 2025-08-19 DOI: 10.1016/j.scriptamat.2025.116942

M.H. Li, L. Qi, X.C. Han, C.Q. Zou, W.D. Wang, X.S. Zhou, S.M. Peng, H.H. Shen

{"title":"Enhancing the helium retaining ability of metal tritide by multi-principle element alloying with severe lattice distortion","authors":"M.H. Li, L. Qi, X.C. Han, C.Q. Zou, W.D. Wang, X.S. Zhou, S.M. Peng, H.H. Shen","doi":"10.1016/j.scriptamat.2025.116942","DOIUrl":"10.1016/j.scriptamat.2025.116942","url":null,"abstract":"<div><div>Helium (He) bubble induced tritium retention is a critical factor affecting the cyclic tritium storage capacity of tritium storage materials, with helium retaining ability serving as a key indicator for evaluating comprehensive tritium storage properties. This study systematically investigated He bubble growth behavior and helium release characteristics in Ti<sub>20.2</sub>Zr<sub>16.6</sub>Hf<sub>18.1</sub>Nb<sub>45.1</sub> multi-principal element alloy (MPEA) tritide and titanium tritide using transmission electron microscopy (TEM) and He instantaneous release fraction (IRF) techniques. Results reveal that He bubbles maintain spherical growth in Ti<sub>20.2</sub>Zr<sub>16.6</sub>Hf<sub>18.1</sub>Nb<sub>45.1</sub>T<sub>111</sub> tritide, whereas TiT<sub>1.68</sub> tritide undergoes a morphological transition from spherical to platelet-like bubbles. The He release fraction of Ti<sub>20.2</sub>Zr<sub>16.6</sub>Hf<sub>18.1</sub>Nb<sub>45.1</sub>T<sub>111</sub> tritide is one order of magnitude lower than that of titanium tritide. The severe lattice distortion of MPEA effectively retards He migration and diffusion increases He bubble nucleation density, and significantly decelerates bubble growth. This study confirms that MPEAs exhibit excellent helium retaining ability, suggesting their potential as high-performance tritium storage materials.</div></div>","PeriodicalId":423,"journal":{"name":"Scripta Materialia","volume":"270 ","pages":"Article 116942"},"PeriodicalIF":5.6,"publicationDate":"2025-08-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144863774","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

Thermodynamic-kinetic relationship in Pd-based metallic glasses 钯基金属玻璃的热力学-动力学关系

IF 5.6 2区材料科学

Scripta Materialia Pub Date : 2025-08-19 DOI: 10.1016/j.scriptamat.2025.116934

J.B. Cui , G.H. Xing , Q. Hao , Guo-Jian Lyu , Yun-Jiang Wang , T. Wada , H. Kato , E. Pineda , V.A. Khonik , J.C. Qiao

引用次数: 0

Larger than uncorrelated vacancy diffusion contributions in chemically disordered crystalline materials 在化学无序的晶体材料中比不相关的空位扩散贡献更大

IF 5.6 2区材料科学

Scripta Materialia Pub Date : 2025-08-19 DOI: 10.1016/j.scriptamat.2025.116928

Soham Chattopadhyay, Blas P. Uberuaga

引用次数: 0

Local structure analysis of magnesium alloy Mg99.2Zn0.2Y0.6 by photoelectron holography 镁合金Mg99.2Zn0.2Y0.6的光电子全息局部结构分析

IF 5.6 2区材料科学

Scripta Materialia Pub Date : 2025-08-18 DOI: 10.1016/j.scriptamat.2025.116930

Zexu Sun , Koji Kimura , Daisuke Egusa , Eiji Abe , Hiroto Tomita , Sota Kawamura , Koji Hagihara , Yusuke Hashimoto , Koichi Hayashi , Tomohiro Matsushita

引用次数: 0

Micro-scale local damage mechanisms and life prediction method of the fourth-generation single crystal superalloy under thermal-mechanical fatigue 第四代单晶高温合金热-机械疲劳微尺度局部损伤机理及寿命预测方法

IF 5.6 2区材料科学

Scripta Materialia Pub Date : 2025-08-16 DOI: 10.1016/j.scriptamat.2025.116935

Zihao Tan , Chenglu Zou , Xinguang Wang, Jianchao Pang, Yongmei Li, Jingjing Liang, Jide Liu, Jinlai Liu, Jinguo Li, Zhefeng Zhang, Xiaofeng Sun, Yizhou Zhou

{"title":"Micro-scale local damage mechanisms and life prediction method of the fourth-generation single crystal superalloy under thermal-mechanical fatigue","authors":"Zihao Tan , Chenglu Zou , Xinguang Wang, Jianchao Pang, Yongmei Li, Jingjing Liang, Jide Liu, Jinlai Liu, Jinguo Li, Zhefeng Zhang, Xiaofeng Sun, Yizhou Zhou","doi":"10.1016/j.scriptamat.2025.116935","DOIUrl":"10.1016/j.scriptamat.2025.116935","url":null,"abstract":"<div><div>During the in-service of single crystal (SX) turbine blades, the ever-changing temperature and stress at starting-up/shutting-down stages would inevitably cause fatal damages to SX superalloys by means of low-cycle fatigue (LCF) and thermal-mechanical fatigue (TMF). In this work, the micro-scale local damage originated from micro-pores and crack tips during high-temperature cyclic deformation was disclosed. The introduction of local micro-defects significantly affected fatigue life and favorably facilitated local γ′-degradation, by means of excessive superdislocations (LCF and in-phase TMF) and twinning/stacking faults (LCF and out-of-phase TMF) shearing. Furthermore, relationships between both the macroscopic/micro-scale damage mechanisms and different strain energy components have been subsequently established. Accordingly, the high-accuracy fatigue life prediction has been achieved in fourth -generation SX superalloy system, based on the method of supplement and optimization of the hysteresis energy into total strain energy. These achievements contribute to the development of novel superalloy materials and safe operation of advanced aero-engines.</div></div>","PeriodicalId":423,"journal":{"name":"Scripta Materialia","volume":"269 ","pages":"Article 116935"},"PeriodicalIF":5.6,"publicationDate":"2025-08-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144852681","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

High-entropy oxide photocatalysts for green ammonia synthesis from nitrogen fixation in water 水中固氮合成绿色氨的高熵氧化物光催化剂

IF 5.6 2区材料科学

Scripta Materialia Pub Date : 2025-08-15 DOI: 10.1016/j.scriptamat.2025.116931

Thanh Tam Nguyen , Jacqueline Hidalgo-Jiménez , Kaveh Edalati

引用次数: 0

Deformation kinking and stress-induced martensitic transformation in a laser-based powder bed fusion-processed metastable β Ti-5Al-5Mo-5V-3Cr alloy 激光基粉末床熔合加工亚稳β Ti-5Al-5Mo-5V-3Cr合金的变形扭结和应力诱导马氏体相变

IF 5.6 2区材料科学

Scripta Materialia Pub Date : 2025-08-13 DOI: 10.1016/j.scriptamat.2025.116929

Dian Li , Deepak V Pillai , Sydney Fields , Xing Zhang , Mohammad Merajul Haque , Yiliang Liao , Fan Sun , Liang Qi , Rajarshi Banerjee , Yufeng Zheng

{"title":"Deformation kinking and stress-induced martensitic transformation in a laser-based powder bed fusion-processed metastable β Ti-5Al-5Mo-5V-3Cr alloy","authors":"Dian Li , Deepak V Pillai , Sydney Fields , Xing Zhang , Mohammad Merajul Haque , Yiliang Liao , Fan Sun , Liang Qi , Rajarshi Banerjee , Yufeng Zheng","doi":"10.1016/j.scriptamat.2025.116929","DOIUrl":"10.1016/j.scriptamat.2025.116929","url":null,"abstract":"<div><div>The deformation mechanism in a metastable β Ti-5Al-5Mo-5V-3Cr (wt.%, Ti-5553) alloy fabricated by laser-based powder bed fusion (PBF-LB/M) was investigated using scanning electron microscopy, transmission electron microscopy, and aberration-corrected scanning transmission electron microscopy. The PBF-LB/M Ti-5553 exhibited an ultimate tensile strength of 790.2 <span><math><mo>±</mo></math></span> 42.4 MPa and total elongation of 23.0 % <span><math><mo>±</mo></math></span> 1.4 % at room temperature, despite notable strain softening. Unlike deformation twinning in conventionally processed Ti-5553, deformation kinking occurred in the PBF-LB/M Ti-5553 during tensile deformation and <110><sub>β</sub>-type kink bands formed with ∼2° to ∼11° misorientation relative to the β matrix. These kink bands accommodate local stress concentrations developed during tensile deformation, enhancing the total elongation. Additionally, nanoscale stress-induced αʺ martensite with orthorhombic structure formed at kink/matrix interfaces and within kink bands, further accommodating localized strain. The combination of deformation kinking and stress-induced martensitic transformation is believed to contribute to the excellent ductility despite strain-softening in PBF-LB/M Ti-5553.</div></div>","PeriodicalId":423,"journal":{"name":"Scripta Materialia","volume":"269 ","pages":"Article 116929"},"PeriodicalIF":5.6,"publicationDate":"2025-08-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144830119","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

Revealing deformation mechanism of fine-grained Mg alloys via in-situ neutron diffraction analysis 原位中子衍射分析揭示了细晶镁合金的变形机理

IF 5.6 2区材料科学

Scripta Materialia Pub Date : 2025-08-13 DOI: 10.1016/j.scriptamat.2025.116921

Hidetoshi Somekawa , Wu Gong , Takuro Kawasaki , Stefanus Harjo , Alok Singh , Yo Tomota

{"title":"Revealing deformation mechanism of fine-grained Mg alloys via in-situ neutron diffraction analysis","authors":"Hidetoshi Somekawa , Wu Gong , Takuro Kawasaki , Stefanus Harjo , Alok Singh , Yo Tomota","doi":"10.1016/j.scriptamat.2025.116921","DOIUrl":"10.1016/j.scriptamat.2025.116921","url":null,"abstract":"<div><div>Deformation mechanism at room-temperature of fine-grained Pure Mg, AZ31 and Mg-Mn alloys is examined through in-situ neutron diffraction method and postmortem microstructural observations. Extension twins do not form in any of the specimens. In the AZ31 alloy, lattice strain and integrated intensity of individual planes change differently with progression of tensile tests, indicating large plastic anisotropy. This is due to large number of dislocation slips on not only basal but also prismatic planes. Whereas, Pure Mg and Mg-Mn alloy show a small difference in lattice strain and integrated intensity between diffraction peaks, because grain boundary sliding plays a role in relaxation of stress accumulations at grain boundaries, with less dependence on crystallographic orientation. Neutron diffraction analysis in Pure Mg and Mg-Mn alloy reveals that dislocation slips (on mainly basal plane) are generated by mechanisms associated with both accommodation process for grain boundary sliding and general intragranular plastic deformation.</div></div>","PeriodicalId":423,"journal":{"name":"Scripta Materialia","volume":"269 ","pages":"Article 116921"},"PeriodicalIF":5.6,"publicationDate":"2025-08-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144830118","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