Yaqi Huang , Shaogang Wang , Yuzhang Lu , Jian Shen , Dong Wang , Guang Xie , Yawei Li , Jonathan Cormier , Jian Zhang
{"title":"Ex-situ investigation of micro-pore evolution and crack initiation/propagation during fatigue in a single crystal Ni-based superalloy","authors":"Yaqi Huang , Shaogang Wang , Yuzhang Lu , Jian Shen , Dong Wang , Guang Xie , Yawei Li , Jonathan Cormier , Jian Zhang","doi":"10.1016/j.msea.2025.149224","DOIUrl":"10.1016/j.msea.2025.149224","url":null,"abstract":"<div><div>Ex-situ fatigue tests combined with X-ray Computed Tomography (XCT) observation and detailed microstructure characterization were conducted under low and high stress amplitude at 760 °C to investigate pore evolution, crack initiation and propagation. It was found that, in the early stages of fatigue loading, the decrease in the quantity of solidification/homogenization-pore (S/H-pore) was attributed to the diffusion of vacancies to sample surface and the effect of local deformation. Some “disappeared” (below the resolution of XCT) S/H-pores re-appeared at the same sites as fatigue progressed. The formation of deformation-pores (D-pore) was observed directly, depending on the loading stress amplitude. Under low stress amplitude, the largest S-pore in fatigue sample was the preferred site for crack initiation. Severe local deformation near S-pores induced lattice rotation, the formation of slip band and resulted in micro-crack initiation. New mechanisms of micro-crack formation near the pore in the very early stages of fatigue, involving carbide oxidation and diffusion-induced cavity were also observed. In addition, ex-situ XCT observation revealed that large pores promoted crack propagation, whereas carbides played a lesser role in crack growth. However, at high stress amplitude, cracked carbide at the surface promoted crack initiation and propagation. 3D reconstruction of the crack by XCT indicated that pores had little effect on crack growth at high stress amplitude.</div></div>","PeriodicalId":385,"journal":{"name":"Materials Science and Engineering: A","volume":"947 ","pages":"Article 149224"},"PeriodicalIF":7.0,"publicationDate":"2025-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145264074","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}
Yuhang Luo , Chengquan Zhang , Yi Huang , Pengcheng Zhang , Xiaodong Tan , Lixue Liu , Wenli Song , Shengfeng Guo
{"title":"HfNbTaTiAl refractory multi-principal element alloy with excellent tensile properties at room temperature","authors":"Yuhang Luo , Chengquan Zhang , Yi Huang , Pengcheng Zhang , Xiaodong Tan , Lixue Liu , Wenli Song , Shengfeng Guo","doi":"10.1016/j.msea.2025.149223","DOIUrl":"10.1016/j.msea.2025.149223","url":null,"abstract":"<div><div>A novel Hf<sub>30.3</sub>Nb<sub>10</sub>Ta<sub>20.3</sub>Ti<sub>30.3</sub>Al<sub>9.0</sub> refractory multi-principal element alloy (RMPEA) was designed with short-time annealing to achieve excellent combination of strength and ductility, surpassing most of the previously reported RMPEAs. The curved non-screw dislocations serve as the main plastic deformation mechanism, while the microband induced plasticity effect contributes to the sustained strain-hardening ability.</div></div>","PeriodicalId":385,"journal":{"name":"Materials Science and Engineering: A","volume":"947 ","pages":"Article 149223"},"PeriodicalIF":7.0,"publicationDate":"2025-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145263874","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}
Yi Liu , Min Zhang , Hongle Li , Xing Zhang , Shaofei Qu , Borja Fernandez Hernandez , Xianhong Han
{"title":"The effect of rapid resistance heating on microstructure and hydrogen embrittlement of ultra-high-strength hot stamping steel","authors":"Yi Liu , Min Zhang , Hongle Li , Xing Zhang , Shaofei Qu , Borja Fernandez Hernandez , Xianhong Han","doi":"10.1016/j.msea.2025.149213","DOIUrl":"10.1016/j.msea.2025.149213","url":null,"abstract":"<div><div>The rapid resistance heating (RH) method, which is recognized for its time-saving and energy efficiency, shows potential for producing hot stamping ultra-high-strength steels. However, its impact on mechanical properties, particularly hydrogen embrittlement (HE), has not yet been comprehensively investigated. This study reveals that although RH enhances the mechanical properties of steels, it also leads to an increase in HE sensitivity, which can be alleviated through a baking treatment. Compared to conventional furnace heating (FH), RH significantly shorten the heating duration, refines the prior austenite grain (PAG) size, and increases dislocation density. The finer PAG size enhances the variant selectivity during martensitic transformation, while dislocation strengthening contributed to improved strength and ductility. However, RH specimens exhibited more severe hydrogen-induced deterioration in mechanical performance, with fracture surfaces characterized by distinct intergranular fracture even under short-duration hydrogen charging. Then, the baking treatment was proven effective in reducing HE sensitivity by impeding hydrogen transport via dislocation slip to PAG boundaries, thereby mitigating hydrogen-induced boundary decohesion and delaying the onset of intergranular cracking. Furthermore, the weakened variant selectivity of martensite promotes the formation of low-angle PAG boundary segments, which act to hinder crack propagation. These findings provide a faster and more efficient heating method for producing ultra-high-strength steels with improved performance and reduced HE sensitivity.</div></div>","PeriodicalId":385,"journal":{"name":"Materials Science and Engineering: A","volume":"947 ","pages":"Article 149213"},"PeriodicalIF":7.0,"publicationDate":"2025-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145263990","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}
Xiaodong Tan , Sihao Zou , Yuanping Xu , Junhua Hou , Jiawen Zhang , Jiatong Wang , Shengfeng Guo , Wenjun Lu
{"title":"Optimizing strength and ductility in 2.8 wt% Mn TRIP steel: unlocking multistage TRIP effects through a co-deformable dual-heterogeneous structure","authors":"Xiaodong Tan , Sihao Zou , Yuanping Xu , Junhua Hou , Jiawen Zhang , Jiatong Wang , Shengfeng Guo , Wenjun Lu","doi":"10.1016/j.msea.2025.149212","DOIUrl":"10.1016/j.msea.2025.149212","url":null,"abstract":"<div><div>Achieving an optimal balance between strength and ductility in advanced high-strength steels (AHSS) remains a critical challenge, particularly for medium Mn TRIP steels, where high Mn content (≥5.0 wt%) often leads to severe Mn segregation, poor weldability, and high deformation resistance. Here, we demonstrate a novel co-deformable dual-heterogeneous structure in a low-carbon 2.8 wt% Mn TRIP steel, engineered through a combination of hot-rolling and tailored intercritical annealing strategies. This microstructural design, comprising polygonal ferrite, lath ferrite, and martensite/retained austenite (M/RA) islands with varying morphologies, delivers an exceptional product of strength and elongation (PSE) exceeding 30 GPa%, rivaling conventional high-Mn TRIP steels. A detailed microstructural investigation reveals that the material's superior mechanical performance stems from a multistage transformation-induced plasticity (TRIP) effect, governed by the sequential activation of strain localization across heterogeneous ferritic domains. Quasi in-situ EBSD and microscopic digital image correlation (μ-DIC) analyses uncover a strain partitioning cascade, where deformation first concentrates in polygonal ferrite, thick lath ferrite with high Schmid factors and local areas near the boundaries between lath ferrite blocks with significant crystallographic misorientation, then transitions through fine lath ferrite with high Schmid factors, before culminating in lath ferrite with lower Schmid factors. This orchestrated strain evolution triggers a progressive TRIP effect, effectively delaying strain localization and enhancing work-hardening capacity. Crucially, we show that the key to improved ductility is not merely the martensitic transformation of retained austenite, but rather the synchronized, co-deformable response of the ferritic matrix. These findings establish that strain localization engineering, through hierarchical microstructure design, is a powerful strategy for unlocking the full potential of TRIP steels. By integrating a controllable multistage TRIP effect via dual-heterostructure tuning, this study provides a blueprint for the next generation of low-carbon, low/medium Mn TRIP steels, offering an economically viable and industrially scalable alternative to conventional high-Mn AHSS.</div></div>","PeriodicalId":385,"journal":{"name":"Materials Science and Engineering: A","volume":"947 ","pages":"Article 149212"},"PeriodicalIF":7.0,"publicationDate":"2025-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145264076","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}
Jin-jin Tang , Yi Xiong , Yong Li , Xiao-qin Zha , Shao-ru Zhang , Feng-zhang Ren , Shubo Wang
{"title":"The effect of ageing time on the microstructure and properties of a warm-rolled Ni-W-Co-Ta medium–heavy alloy","authors":"Jin-jin Tang , Yi Xiong , Yong Li , Xiao-qin Zha , Shao-ru Zhang , Feng-zhang Ren , Shubo Wang","doi":"10.1016/j.msea.2025.149225","DOIUrl":"10.1016/j.msea.2025.149225","url":null,"abstract":"<div><div>Ageing treatments were performed on a 50 % warm-rolled Ni-W-Co-Ta medium–heavy alloy for different time (1, 2, 4, 8,16 h) at 725 °C. The effects of ageing time on the microstructure and mechanical properties of the alloy were investigated. The results showed that after ageing treatment, a long-range ordered D1a-type Ni<sub>4</sub>W strengthening phase precipitated in the alloy. As the ageing time increased, the size of the Ni<sub>4</sub>W phase grew slightly, and the Ni<sub>4</sub>W particles presented an approximately spherical shape, and the strength of the alloy first increased and then exhibited a slight decrease, and the elongation after fracture increased. When the ageing time was 8 h, the alloy exhibited a yield strength of 1903 MPa, and the tensile strength remained 2147 MPa, and the elongation after fracture reached 18 %, respectively. Under the combined action of precipitation strengthening, static recovery, and twinning strengthening, the alloy exhibited good overall mechanical properties.</div></div>","PeriodicalId":385,"journal":{"name":"Materials Science and Engineering: A","volume":"947 ","pages":"Article 149225"},"PeriodicalIF":7.0,"publicationDate":"2025-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145264075","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}
He Ren , Junjie Shen , Xiangru Guo , Qingjian Liu , Ziyu Xue , Rongxiao Chu
{"title":"Influence of hydrogen on the evolution of recrystallization textures in pure iron","authors":"He Ren , Junjie Shen , Xiangru Guo , Qingjian Liu , Ziyu Xue , Rongxiao Chu","doi":"10.1016/j.msea.2025.149191","DOIUrl":"10.1016/j.msea.2025.149191","url":null,"abstract":"<div><div>The mechanical and physical properties of materials are closely related to their texture. The influence of hydrogen on the evolution of recrystallization textures (R-cube, {111}[110], {111}[112], and {112}[1-10]) in a body-centered cubic metal was studied. Hydrogen at high temperatures promotes the evolution of R-cube and {112}[1-10] textures while hindering the evolution of {111}[110] and {111}[112] textures. The influence of hydrogen on recrystallization texture evolution differs between the nucleation and grain growth stages. Hydrogen promotes the evolution of {111}[110] and {111}[112] textures during both the nucleation and grain growth stages. For the R-cube and {112}[1-10] textures, hydrogen facilitates their evolution during the nucleation stage but hinders it during the grain growth stage. The mechanisms driving texture evolution during recrystallization nucleation and grain growth are suggested to be hydrogen-enhanced subgrain boundary migration (HESBM) and hydrogen-enhanced specific crystal plane rotation (HECPR), respectively.</div></div>","PeriodicalId":385,"journal":{"name":"Materials Science and Engineering: A","volume":"947 ","pages":"Article 149191"},"PeriodicalIF":7.0,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145263951","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}
Mao Peng , Yanjun Zhao , Feng Wei , Jinyu Long , Haoxiang Yang , Deyang Lu , Yang Zeng , Yan Zhao , Nengwen Li
{"title":"Strength-ductility trade-off in high-Mg aluminum alloys via Y/Gd-induced heterogeneous microstructure","authors":"Mao Peng , Yanjun Zhao , Feng Wei , Jinyu Long , Haoxiang Yang , Deyang Lu , Yang Zeng , Yan Zhao , Nengwen Li","doi":"10.1016/j.msea.2025.149182","DOIUrl":"10.1016/j.msea.2025.149182","url":null,"abstract":"<div><div>When the Mg-content in 5-series aluminum alloys is ≥ 5 wt%, ductility significantly decreases despite a notable increase in strength. To address this issue, we added 0.18 wt% Y and 0.35 wt% Gd to Al-8.2Mg-0.5Mn alloys and investigated the alterations in their microstructure and properties after homogenization, hot/cold rolling, and annealing. This process introduces numerous fine Mn<sub>2</sub>Gd phases (30–400 nm) uniformly distributed within the alloy, alongside a coarse Al<sub>8</sub>Mn<sub>4</sub>(Gd, Y) phase (1–50 μm). Both phases contribute to forming a heterogeneous grain structure, resulting in a high strength and ductility after a short-duration annealing period of 10 min at 430 °C (UTS ⁓479 MPa, EL⁓21.9 %). The excellent synergy between strength and ductility after short-duration annealing can be attributed to the high solute Mg content, the diffusely distributed fine second phase and grain refinement. In addition, its excellent ductility is also closely related to the high proportion of recrystallized grains (89.3 %) and the heterogeneous grain structure. This paper provides a feasible method to break the synergy between strength and ductility in high-magnesium aluminum alloys.</div></div>","PeriodicalId":385,"journal":{"name":"Materials Science and Engineering: A","volume":"947 ","pages":"Article 149182"},"PeriodicalIF":7.0,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145218838","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}
Peng Sang , Ningning Liang , Yi Liu , Lei Gu , Zan Zhang , Kunning Niu , Shenglong Wang , Xu-Sheng Yang , Yongsheng Li
{"title":"Synergistic improvement of strength and ductility by nano-lamellar L12 precipitates in Co-free NiFeCrAlTi medium-entropy alloy","authors":"Peng Sang , Ningning Liang , Yi Liu , Lei Gu , Zan Zhang , Kunning Niu , Shenglong Wang , Xu-Sheng Yang , Yongsheng Li","doi":"10.1016/j.msea.2025.149216","DOIUrl":"10.1016/j.msea.2025.149216","url":null,"abstract":"<div><div>High/medium-entropy alloys (H/MEAs) with L1<sub>2</sub> precipitates show a considerable strength-ductility combination. These alloys often contain the cobalt element that contributes to the high-temperature stability of L1<sub>2</sub> precipitates, while the high price of cobalt perplexes the balance of cost and performance. In this work, a novel Co-free Ni<sub>46</sub>Fe<sub>33</sub>Cr<sub>13</sub>Al<sub>5</sub>Ti<sub>3</sub> MEA with the unique coherent nano-lamellar Ni<sub>3</sub>(Al,Ti) - L1<sub>2</sub> precipitates was processed by generating discontinuous precipitation through 600 °C direct aging after cold rolling (A600), achieving the high strength-ductility synergy with a yield strength of 1518 MPa and uniform elongation of 14.1 %. The high strength originates from the high-density FCC/L1<sub>2</sub> nano-lamellar boundaries, where more dislocations are accumulated in the A600 MEA than that with near spherical L1<sub>2</sub> precipitates aging at 900 °C (A900). In addition, the coherent nano-lamellar allows mobile dislocations to shear through it, reducing the stress concentration at the lamellar phase boundary. A synergistic improvement of strength and ductility achieves in this optimized microstructure for A600 MEA. The Co-free coherent nano-lamellar MEA shows the substantial potential in designing and application of advanced H/MEAs.</div></div>","PeriodicalId":385,"journal":{"name":"Materials Science and Engineering: A","volume":"947 ","pages":"Article 149216"},"PeriodicalIF":7.0,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145218898","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":"New mechanisms and approaches in design and heat treatment of Al-Cu-Mn-Zr(-Sn, Si) based casting alloys aiming to increase heat resistance via formation of α(AlMnSi) phase dispersoids assisted by θʹ precipitates","authors":"T.K. Akopyan , F.O. Milovich , A.A. Lukyanchuk , T.A. Sviridova , A.S. Fortuna , N.V. Letyagin , I.S. Solovev","doi":"10.1016/j.msea.2025.149217","DOIUrl":"10.1016/j.msea.2025.149217","url":null,"abstract":"<div><div>The new ACLSZ alloy with the composition (wt.%) Al-5.6Cu-0.48La-0.44Mn-0.2Zr-0.1Sn-0.21Si was subjected in the as-cast state to high-temperature aging at 300 °C for 3 h (without preliminary solid solution heat treatment) and further stabilization annealing at 350 °C for up to 200 h. Comprehensive structural analysis revealed the presence of the previously undescribed intermetallic Al<sub>4</sub>LaSi(Cu,Mn)<sub>2</sub> compound with a tetragonal P4/mmm structure (tP8/19). The hardness of the alloy after aging and stabilization annealing reaches ∼91 HV after a 100 h exposure and then remains almost unchanged. Transmission electron microscopy (TEM) study showed the formation of classical plate-like precipitates corresponding to the θʹ-phase after aging. After long-term annealing at 350 °C for up to 200 h, fine rounded or slightly elongated crystals of the α(AlMnSi) phase with a size of 30–50 nm and a high number density are found in association with θʹ-phase platelets. The data obtained allowed one to develop new mechanisms for the improvement of the heat resistance of the Al-Cu-Mn-Zr based alloys: (i) formation of plate-like θʹ-phase precipitates through high-temperature aging. At the same time, the aluminum solid solution must be supersaturated with Mn; (ii) at the second sub-stage the θʹ-phase crystals should be further stabilized through annealing due to the combined segregation of Zr, Si and Mn atoms at the θʹ/(Al) interfaces; (iii) during further annealing, the assisted formation of the fine α(AlMnSi) phase dispersoids with high number density and high heat resistance takes place directly at the θʹ-phase precipitates.</div></div>","PeriodicalId":385,"journal":{"name":"Materials Science and Engineering: A","volume":"947 ","pages":"Article 149217"},"PeriodicalIF":7.0,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145218895","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}
Shaolin Li , Chenyang Ge , Kexing Song , Xiuhua Guo , Yanjun Zhou , Yahui Liu , Haitao Liu , Chaomin Zhang , Jun Cao , Fei Cao , Junjie Sun , Hailin Jing
{"title":"Strain-induced recrystallization behavior in single-crystal copper processing wires: The role of trace Y on mechanical property evolution at room temperature","authors":"Shaolin Li , Chenyang Ge , Kexing Song , Xiuhua Guo , Yanjun Zhou , Yahui Liu , Haitao Liu , Chaomin Zhang , Jun Cao , Fei Cao , Junjie Sun , Hailin Jing","doi":"10.1016/j.msea.2025.149200","DOIUrl":"10.1016/j.msea.2025.149200","url":null,"abstract":"<div><div>Single-crystal copper processing wire as a critical conductive material for transmission wires in integrated circuits, plays an essential role in ultra-fine processing due to its superior plastic deformation capability. This study investigates the evolution of plastic deformation and microstructural changes in single-crystal copper processing wire under high strain conditions with the addition of the rare earth element Y. Furthermore, the influence of the rare earth element Y on the mechanical properties, microstructure development, and texture composition of single-crystal copper processing wire is systematically examined. The study employed scanning electron microscopy (SEM), electron backscatter diffraction (EBSD), X-ray diffraction (XRD), three-dimensional atom probe tomography (3D-APT), and transmission electron microscopy (TEM) for material analysis and characterization. A Y-O atomic mutual attraction model was developed to analyze the nanoscale precipitated phases. The results indicate that a “Y-O″ phase forms at ε ≥ 3.68, accompanied by a “self-annealing” phenomenon. Specifically, during room temperature plastic deformation, the tensile strength of Cu-0.03Y processing wire (291.73 MPa) decreases by 35.4 %, while its elongation(5.75 %) increases by 751 % compared to that of single-crystal copper processing wire (0.675 %). The presence of multi-scale precipitates, including nanoscale Y<sub>2</sub>O<sub>3</sub> and micron-scale Cu<sub>5</sub>Y precipitates, in micro-alloyed single-crystal copper processing wires induces significant lattice distortion and enhances the cumulative dislocation density. The high dislocation density facilitates dislocation reorganization, subgrain rotation, and the transition from LAGBs to HAGBs, thereby increasing the volume fraction of <100> and <110> fiber textures and promoting recrystallization.</div></div>","PeriodicalId":385,"journal":{"name":"Materials Science and Engineering: A","volume":"947 ","pages":"Article 149200"},"PeriodicalIF":7.0,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145218899","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}