Scripta Materialia最新文献_第3页

Reduction of lateral constrain leads to plasticity in metallic glasses 横向约束的减小导致了金属玻璃的塑性

IF 5.6 2区材料科学

Scripta Materialia Pub Date : 2026-04-15 Epub Date: 2026-01-28 DOI: 10.1016/j.scriptamat.2026.117165

Rui Yamada , Keisuke Tabaru , Ryota Maeda , Wook Ha Ryu , Junji Saida

引用次数: 0

Harnessing the role of cobalt (Co) on austenite reversion for ultrafine-grained maraging steels 利用钴（Co）在超细晶马氏体时效钢奥氏体还原中的作用

IF 5.6 2区材料科学

Scripta Materialia Pub Date : 2026-04-15 Epub Date: 2026-01-31 DOI: 10.1016/j.scriptamat.2026.117193

Zhenyu Wang , Kan Ma , Bowen Shi , Yuanfei Su , Tongzhao Gong , Xianbo Shi , Quanqiang Shi , Wei Wang , Wei Yan

{"title":"Harnessing the role of cobalt (Co) on austenite reversion for ultrafine-grained maraging steels","authors":"Zhenyu Wang , Kan Ma , Bowen Shi , Yuanfei Su , Tongzhao Gong , Xianbo Shi , Quanqiang Shi , Wei Wang , Wei Yan","doi":"10.1016/j.scriptamat.2026.117193","DOIUrl":"10.1016/j.scriptamat.2026.117193","url":null,"abstract":"<div><div>Grain refinement via austenite reversion has been a critical process in maraging steels; however, Co's governing role in this austenite reversion remains inadequately characterized. This study investigates the influence of Co on the austenite reversion behavior in Fe–Ni–Ti–(Co) maraging steels under continuous heating. We demonstrate that Co inhibits acicular austenite (γ<sub>A</sub>) reversion by elevating its critical Ni concentration threshold. Conversely, Co-induced coarser intergranular Ni₃Ti promotes globular austenite (γ<sub>G</sub>) nucleation. Furthermore, the enhanced γ<sub>G</sub> nucleation results in more pronounced prior austenite grain (PAG) refinement, and the suppression of Co on austenite reversion exacerbates Ni heterogeneity within austenite. Upon subsequent cooling, this chemical heterogeneity triggers an anomalous martensitic transformation, resulting in substantially refinement of the martensitic blocks and packets (MBP). These findings provide fundamental insights into Co-mediated microstructural evolution, establishing new principles for tailoring austenite reversion in ultrahigh strength maraging steels.</div></div>","PeriodicalId":423,"journal":{"name":"Scripta Materialia","volume":"276 ","pages":"Article 117193"},"PeriodicalIF":5.6,"publicationDate":"2026-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146171345","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-temperature Mo-based amorphous alloys with enhanced corrosion resistance in lead-bismuth eutectic at 500 °C 高温钼基非晶合金在500°C铅铋共晶中具有增强的耐腐蚀性

IF 5.6 2区材料科学

Scripta Materialia Pub Date : 2026-04-15 Epub Date: 2026-01-28 DOI: 10.1016/j.scriptamat.2026.117191

Siming Xiao , Chengquan Zhang , Ya-nan Chen , Chen Su , Pengcheng Zhang , Feifei Zhang , Jijun Yang , Shengfeng Guo

{"title":"High-temperature Mo-based amorphous alloys with enhanced corrosion resistance in lead-bismuth eutectic at 500 °C","authors":"Siming Xiao , Chengquan Zhang , Ya-nan Chen , Chen Su , Pengcheng Zhang , Feifei Zhang , Jijun Yang , Shengfeng Guo","doi":"10.1016/j.scriptamat.2026.117191","DOIUrl":"10.1016/j.scriptamat.2026.117191","url":null,"abstract":"<div><div>Molybdenum exhibits low solubility in liquid lead-bismuth (LBE) and maintains structural stability at high temperatures, making it a candidate for reactor cladding. However, grain boundaries in crystalline Mo enable LBE penetration. Mo-based amorphous alloys eliminate these boundaries while retaining high thermal stability, potentially providing superior corrosion resistance. Herein, we systematically investigate the corrosion behavior of two Mo-based amorphous alloys, MoCoB and MoCoCrBC, in LBE at 500 °C. The MoCoCrBC exhibits superior corrosion resistance even after prolonged exposure exceeding 2000 h, whereas the MoCoB shows reduced corrosion resistance. Experimental results reveal that the corrosion layer of the MoCoB primarily consists of MoO<sub>2</sub>, CoMoO<sub>4</sub>, and PbMoO<sub>4</sub>. In contrast, the MoCoCrBC forms a continuous and dense Cr<sub>2</sub>O<sub>3</sub> layer on its surface, serving as an effective diffusion barrier that suppresses the penetration of corrosive species into the matrix. These findings provide valuable insights for the development of Mo-based amorphous alloys for LBE environment.</div></div>","PeriodicalId":423,"journal":{"name":"Scripta Materialia","volume":"276 ","pages":"Article 117191"},"PeriodicalIF":5.6,"publicationDate":"2026-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146076360","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

Atomic-scale characterization of local lattice distortion and short-range order in (Ti0.2Zr0.2Nb0.2Mo0.2Hf0.2)B2 revealed by EXAFS and XANES EXAFS和XANES揭示的（Ti0.2Zr0.2Nb0.2Mo0.2Hf0.2）B2中局部晶格畸变和短程有序的原子尺度表征

IF 5.6 2区材料科学

Scripta Materialia Pub Date : 2026-04-15 Epub Date: 2026-01-31 DOI: 10.1016/j.scriptamat.2026.117200

Haijing Li , Xian Dang , Shiqiang Yue , Luozhen Jiang , Zhihua Shen , Zhulin Huang , Haiyan He , Anding Wang

{"title":"Atomic-scale characterization of local lattice distortion and short-range order in (Ti0.2Zr0.2Nb0.2Mo0.2Hf0.2)B2 revealed by EXAFS and XANES","authors":"Haijing Li , Xian Dang , Shiqiang Yue , Luozhen Jiang , Zhihua Shen , Zhulin Huang , Haiyan He , Anding Wang","doi":"10.1016/j.scriptamat.2026.117200","DOIUrl":"10.1016/j.scriptamat.2026.117200","url":null,"abstract":"<div><div>In this study, we investigate the representative equiatomic (Ti<sub>0.2</sub>Zr<sub>0.2</sub>Nb<sub>0.2</sub>Mo<sub>0.2</sub>Hf<sub>0.2</sub>)B<sub>2</sub> using a combination of multi-shell EXAFS analysis and XANES spectroscopy supported by simulations. EXAFS quantifies the element-resolved bond-length variations (Δ<em>R</em>) and disorder parameters (σ²), revealing a systematic contraction of the M–B bonds for Ti/Zr/Hf and an expansion for Nb/Mo. These opposite responses reflect a balance between atomic-size mismatch and charge redistribution within the MB<sub>12</sub> polyhedra. A strong correlation between Δ<em>R</em>(M–B) and Δ<em>R</em>(M–M) further indicates that first-shell distortions propagate into the metal sublattice through a coherent strain field. XANES measurements identify element-specific charge redistribution, while first-principles XANES simulations show that experimental fingerprints are most consistent with local configurations containing mixed low- and high-electronegativity metal pairs, suggesting the presence of XANES-consistent local atomic motifs with element-specific pairing tendencies rather than statistically established ordering.</div></div>","PeriodicalId":423,"journal":{"name":"Scripta Materialia","volume":"276 ","pages":"Article 117200"},"PeriodicalIF":5.6,"publicationDate":"2026-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146076356","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

Phase boundary mediated twinning in stress-induced martensitic bands in metastable Ti-6Mo-3.5Cr-1Zr alloy 亚稳Ti-6Mo-3.5Cr-1Zr合金中应力诱导马氏体带的相界介导孪晶

IF 5.6 2区材料科学

Scripta Materialia Pub Date : 2026-04-15 Epub Date: 2026-01-28 DOI: 10.1016/j.scriptamat.2026.117192

Fei Zhang , Shun Xu , Shiwei Pan , Feng Qian , Lin Yang , Qunbo Fan , Xingwang Cheng

{"title":"Phase boundary mediated twinning in stress-induced martensitic bands in metastable Ti-6Mo-3.5Cr-1Zr alloy","authors":"Fei Zhang , Shun Xu , Shiwei Pan , Feng Qian , Lin Yang , Qunbo Fan , Xingwang Cheng","doi":"10.1016/j.scriptamat.2026.117192","DOIUrl":"10.1016/j.scriptamat.2026.117192","url":null,"abstract":"<div><div>The obstruction of boundaries on propagation of deformation twinning requires accommodation mechanisms with the largest compatibility ability. In this work, two types of localized shear mechanisms acting as incident banding, i.e., β→αʹ martensitic transformation and β→{332} twinning, interact with residual αʹ phase boundary (PB) in Ti-6Mo-3.5Cr-1Zr alloy. Both types of interactions trigger secondary <span><math><mrow><mo>{</mo><mn>10</mn><mover><mn>1</mn><mo>¯</mo></mover><mn>2</mn><mo>}</mo></mrow></math></span> twins inside the residual αʹ phase as accommodation. Surprisingly, the potential <span><math><mrow><mo>{</mo><mn>10</mn><mover><mn>1</mn><mo>¯</mo></mover><mn>2</mn><mo>}</mo></mrow></math></span> twinning variant with the maximum accommodation capacity is not activated, but the one that intersects the PB along a <<span><math><mrow><mn>11</mn><mover><mn>2</mn><mo>¯</mo></mover><mn>0</mn></mrow></math></span>> direction is frequently preferred. Our analysis indicates that the determination of the preferred mechanism correlates with minimization of the misalignment between the intersection lines of the accommodative twinning plane and the transformation plane of the incident banding with the residual PB. The geometrical feature is important because small misalignment of intersection lines at PB facilitates resultant dislocations dissociation for the nucleation of secondary twins.</div></div>","PeriodicalId":423,"journal":{"name":"Scripta Materialia","volume":"276 ","pages":"Article 117192"},"PeriodicalIF":5.6,"publicationDate":"2026-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146076427","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

Anomalous strengthening in Fe-Cr-Ni-Al-Ti high entropy alloy via annealing-induced nanoprecipitate refinement Fe-Cr-Ni-Al-Ti高熵合金退火诱导纳米沉淀细化的异常强化

IF 5.6 2区材料科学

Scripta Materialia Pub Date : 2026-04-15 Epub Date: 2026-01-27 DOI: 10.1016/j.scriptamat.2026.117190

H.W. Hu , Y. Xu , S.Q. Ding , D.X. Zhang , J. Wang , J.Z. Jiang , X.D. Wang , Q.P. Cao

{"title":"Anomalous strengthening in Fe-Cr-Ni-Al-Ti high entropy alloy via annealing-induced nanoprecipitate refinement","authors":"H.W. Hu , Y. Xu , S.Q. Ding , D.X. Zhang , J. Wang , J.Z. Jiang , X.D. Wang , Q.P. Cao","doi":"10.1016/j.scriptamat.2026.117190","DOIUrl":"10.1016/j.scriptamat.2026.117190","url":null,"abstract":"<div><div>This study reveals an anomalous precipitate evolution mechanism regulated by annealing temperature in an Fe<sub>61.5</sub>Cr<sub>17.5</sub>Ni<sub>12</sub>Al<sub>8</sub>Ti<sub>1</sub> high-entropy alloy. We found that direct quenching after high-temperature annealing at 1273 K can induce a high density of nanoscale, coherent B2-NiAl precipitates (∼50 nm) within the BCC matrix, bypassing the conventional two-step process requiring separate low-temperature aging. The micro-mechanism involves dissolution of precipitates as annealing places the BCC matrix of the alloy in the BCC single-phase region, followed by non-equilibrium precipitation driven by high supersaturation during quenching. In contrast, annealing at 1073–1173 K retains the BCC matrix of the alloy in the BCC+B2 two-phase region, leading solely to precipitate coarsening. This temperature-dependent pathway bifurcation switches the dominant strengthening mechanism from Orowan bypassing to dislocation shearing, elevating the precipitation strengthening contribution to ∼546 MPa and ultimately increasing the alloy's yield strength remarkably to ∼1178 MPa.</div></div>","PeriodicalId":423,"journal":{"name":"Scripta Materialia","volume":"276 ","pages":"Article 117190"},"PeriodicalIF":5.6,"publicationDate":"2026-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146076358","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

Large-area engineering of ferroelectric charged domain walls in (110)-oriented BiFeO3 thin films （110）取向BiFeO3薄膜中铁电畴壁的大面积工程研究

IF 5.6 2区材料科学

Scripta Materialia Pub Date : 2026-04-15 Epub Date: 2026-01-31 DOI: 10.1016/j.scriptamat.2026.117196

Amina Tariq , Toqeer Ahmed , Ye Wang , Huayu Yang , Muhammad Sufyan , Wael Ben Taazayet , Houbing Huang , Jing Wang

{"title":"Large-area engineering of ferroelectric charged domain walls in (110)-oriented BiFeO3 thin films","authors":"Amina Tariq , Toqeer Ahmed , Ye Wang , Huayu Yang , Muhammad Sufyan , Wael Ben Taazayet , Houbing Huang , Jing Wang","doi":"10.1016/j.scriptamat.2026.117196","DOIUrl":"10.1016/j.scriptamat.2026.117196","url":null,"abstract":"<div><div>BiFeO<sub>3</sub> films are potential candidate among ferroelectric materials that has been extensively studied and holds significant promise for applications in information storage devices. Growth parameters are key important for the fabrication of the low-dimensional ferroelectric textures, such as charged domain walls, especially when it comes to their deposition via Pulsed Laser Deposition technique. This study investigates the influence of growth temperature on phase structure, morphology, domain/domain wall textures in BiFeO<sub>3</sub> thin films grown on a perovskite single-crystal SrTiO<sub>3</sub>(110) substrate. Crystallinity, strain effect, film thickness and ferroelectric domain/domain walls of BFO thin films were studied using X-ray diffraction, reciprocal space mapping, Scanning electron microscopy and piezoelectric force microscopy, respectively. Comparative analysis of several films grown at distinct temperatures ranging from 520°C-760°C, concludes that the large area of ferroelectric charged domain walls are effectively achieved at optimized growth temperature of 600°C, with the pure structural phase, well-defined strip-like morphology and two domain variants.</div></div>","PeriodicalId":423,"journal":{"name":"Scripta Materialia","volume":"276 ","pages":"Article 117196"},"PeriodicalIF":5.6,"publicationDate":"2026-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146171347","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

An updated creep formulation for uranium nitride valid across extended stress-temperature domains 一个更新的蠕变公式氮化铀有效的扩展应力-温度域

IF 5.6 2区材料科学

Scripta Materialia Pub Date : 2026-04-15 Epub Date: 2026-01-27 DOI: 10.1016/j.scriptamat.2026.117187

Maria Kosmidou , Andre Broussard , Conor Galvin , Jie Lian , Erofili Kardoulaki

引用次数: 0

Effective destabilization of both mono- and dihydride phases in TiVZrNbHf by Mo addition Mo对TiVZrNbHf中单、二氢化物相的有效失稳

IF 5.6 2区材料科学

Scripta Materialia Pub Date : 2026-04-01 Epub Date: 2026-01-13 DOI: 10.1016/j.scriptamat.2025.117161

Andrei Agafonov , Faye Greaves , Loïc Perrière , Vivian Nassif , Claudia Zlotea

{"title":"Effective destabilization of both mono- and dihydride phases in TiVZrNbHf by Mo addition","authors":"Andrei Agafonov , Faye Greaves , Loïc Perrière , Vivian Nassif , Claudia Zlotea","doi":"10.1016/j.scriptamat.2025.117161","DOIUrl":"10.1016/j.scriptamat.2025.117161","url":null,"abstract":"<div><div>TiVZrNbHf <em>bcc</em> high entropy alloy shows promising hydrogen storage capacity, but unfavourable thermodynamics of the hydride phases <em>i.e.,</em> too stable hydrides requiring high temperatures for recovering the stored hydrogen. Mo addition in this composition ((TiVZrNbHf)<sub>100-<em>x</em></sub>Mo<sub><em>x</em></sub> <em>x</em> = 5, 10 and 16.666) preserves the <em>bcc</em> lattice, decreases the lattice parameter and improves the hydrogen absorption kinetics at room temperature. Moreover, it effectively destabilizes both the <em>bct</em> intermediate and full <em>fcc</em> hydride phases without significant affecting the maximum storage capacity (∼ 2.1 wt. %). The temperatures of successive phase transitions (<em>fcc</em> → <em>bct</em> → <em>bcc</em>) during deuterium desorption strongly reduce with increasing Mo content, as demonstrated by <em>in situ</em> neutron powder diffraction. Several entangled factors can be invoked to explain this thermal destabilization along with electronic structure, steric and electronegativity effects. Therefore, Mo can be proposed as one of the most effective boosting elements to be added in HEAs for hydrogen storage.</div></div>","PeriodicalId":423,"journal":{"name":"Scripta Materialia","volume":"275 ","pages":"Article 117161"},"PeriodicalIF":5.6,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145973927","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

Formation of nitrogen-vacancy centers in (001)-textured polycrystalline diamond layers through pulsed nitrogen gas flow 脉冲氮气流在（001）织构多晶金刚石层中氮空位中心的形成

IF 5.6 2区材料科学

Scripta Materialia Pub Date : 2026-04-01 Epub Date: 2026-01-23 DOI: 10.1016/j.scriptamat.2026.117184

Kil-dong Sung , Michal Gulka , Jaromír Kopeček , Vincent Mortet

{"title":"Formation of nitrogen-vacancy centers in (001)-textured polycrystalline diamond layers through pulsed nitrogen gas flow","authors":"Kil-dong Sung , Michal Gulka , Jaromír Kopeček , Vincent Mortet","doi":"10.1016/j.scriptamat.2026.117184","DOIUrl":"10.1016/j.scriptamat.2026.117184","url":null,"abstract":"<div><div>The influence of pulsed nitrogen gas flow on microstructure and nitrogen-vacancy (NV) center formation was systematically investigated in polycrystalline diamond layers synthesized by microwave plasma chemical vapor deposition. Compared with static flow, gas pulsing enabled precise control of nitrogen-related radicals and induced a transition from microcrystalline to nanocrystalline diamond, accompanied by variations in residual stress and NV emission. Under optimized nitrogen flow, a bimodal structure emerged, comprising (001)-oriented, flake-like microcrystalline grains embedded in nanocrystalline diamond. Confocal optical analysis revealed that negatively charged NV (NV<sup>−</sup>) centers were preferentially localized within highly crystalline grains, whereas neutral NV (NV<sup>0</sup>) centers predominated at grain boundaries, forming spatially separated NV<sup>−</sup>-rich clusters. Relaxometry demonstrated that the longitudinal relaxation times of flake-like grains were comparable to those of high-quality single-crystal diamond. These findings demonstrate that pulsed nitrogen modulation provides an effective strategy for tailoring diamond microstructure and optimizing NV center formation, offering significant potential for quantum applications.</div></div>","PeriodicalId":423,"journal":{"name":"Scripta Materialia","volume":"275 ","pages":"Article 117184"},"PeriodicalIF":5.6,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146035216","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