Annals of the New York Academy of Sciences最新文献_第6页

Protégé Effect for Behavior Change: Does Teaching Digital Stress Solutions to Others Reduce One's Own? 对行为改变的影响：向他人传授数字压力解决方案会减少自己的压力吗？

IF 5.2 3区综合性期刊

Annals of the New York Academy of Sciences Pub Date : 2026-08-14 DOI: 10.1111/nyas.70368

Sameha AlShakhsi, Ala Yankouskaya, Dena Al‐Thani, Raian Ali

{"title":"Protégé Effect for Behavior Change: Does Teaching Digital Stress Solutions to Others Reduce One's Own?","authors":"Sameha AlShakhsi, Ala Yankouskaya, Dena Al‐Thani, Raian Ali","doi":"10.1111/nyas.70368","DOIUrl":"https://doi.org/10.1111/nyas.70368","url":null,"abstract":"The protégé effect suggests that individuals learn a subject more effectively when they teach it to others. Can we therefore assume that when individuals with a problematic behavior teach others about it and how to manage it, they become more likely to reduce and better manage that behavior themselves? We address this question by evaluating a protégé‐based approach to reducing and managing digital stress (DS). Over 3 weeks, 137 participants with moderate–high DS were assigned to four groups. Two groups followed a protégé‐based approach: a passive group, given materials to teach, and an active group, given headlines and required to search for and prepare teaching content. Both groups completed three sessions, each focusing on one DS dimension: availability stress, approval anxiety, and fear of missing out. A digital literacy group received content and quizzes, alongside a control group. Outcomes included DS levels, problematic social media use, word of mouth, and issue involvement. Results showed no significant differences between groups. The findings highlight the difficulty of translating cognitive engagement into behavioral change. This study contributes empirical evidence to the digital well‐being literature by illustrating the challenges of enhancing digital well‐being, potentially due to persistent digital habits and socially reinforced stressors.","PeriodicalId":8250,"journal":{"name":"Annals of the New York Academy of Sciences","volume":"12 1","pages":""},"PeriodicalIF":5.2,"publicationDate":"2026-08-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148754440","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A Graph Network–Based Real‐Time Precise Predicting Model for Progressive Collapse of Steel Frame Structures 基于图网络的钢框架结构连续倒塌实时精确预测模型

IF 5.2 3区综合性期刊

Annals of the New York Academy of Sciences Pub Date : 2026-08-14 DOI: 10.1111/nyas.70371

Jiang‐Zhou Peng, Mingchuan Wang, Zhi‐Qiao Wang, Jie Hu, Shaoshuai Shi, Mingyang Wang, Yong He, Wei‐Tao Wu

{"title":"A Graph Network–Based Real‐Time Precise Predicting Model for Progressive Collapse of Steel Frame Structures","authors":"Jiang‐Zhou Peng, Mingchuan Wang, Zhi‐Qiao Wang, Jie Hu, Shaoshuai Shi, Mingyang Wang, Yong He, Wei‐Tao Wu","doi":"10.1111/nyas.70371","DOIUrl":"https://doi.org/10.1111/nyas.70371","url":null,"abstract":"Progressive collapse is initiated by local component failure and evolves into global structural instability through continuous damage propagation. Rapid prediction of the structural response before an actual collapse‐inducing event occurs is important for collapse‐resistant design, pre‐disaster consequence assessment, and safety evaluation. However, challenges remain in predicting three‐dimensional and multi‐component collapse scenarios, including geometry representation, topology changes, and generalization across different failure conditions. To address these issues, this study proposes a graph neural network model for fast prediction of progressive collapse in steel‐framed buildings after component failure. The model adopts a graph encoder–decoder architecture to represent component geometry and structural connectivity, employs multi‐scale message passing to infer global damage patterns from local failures, and incorporates a multi‐source feature joint training strategy for single‐, double‐, and multi‐column failure scenarios. Validation results show that the model achieves 94% accuracy compared with simulation data and a 6900‐fold acceleration, enabling real‐time collapse prediction for pre‐disaster consequence forecasting. This approach improves the balance between simulation accuracy and efficiency and provides a new pathway for large‐scale collapse analysis.","PeriodicalId":8250,"journal":{"name":"Annals of the New York Academy of Sciences","volume":"15 1","pages":""},"PeriodicalIF":5.2,"publicationDate":"2026-08-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148754526","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Spatial Coherence Structure–Mediated Transmission of Encrypted Three-Dimensional Objects and Hidden Information 空间相干结构介导的加密三维物体和隐藏信息传输

IF 4.5 3区综合性期刊

Annals of the New York Academy of Sciences Pub Date : 2026-08-14 DOI: 10.1111/nyas.70376

Danying Song, Wei Zhang, Nana Yu, Yuwang Gao, Zhuqing Zhu, Xiaolei Wang, Sixing Xi

{"title":"Spatial Coherence Structure–Mediated Transmission of Encrypted Three-Dimensional Objects and Hidden Information","authors":"Danying Song, Wei Zhang, Nana Yu, Yuwang Gao, Zhuqing Zhu, Xiaolei Wang, Sixing Xi","doi":"10.1111/nyas.70376","DOIUrl":"https://doi.org/10.1111/nyas.70376","url":null,"abstract":"<div>\u0000 \u0000 <p>The development of three-dimensional (3D) information encryption and transmission is constrained by the massive data bandwidth involved and the inherent limits of first-order optical parameters. Here, we present a novel scheme that integrates the spatial coherence structure of the optical field with holographic coding to enable secure transmission of encrypted 3D objects and concealed information. By exploiting the second-order coherence of partially coherent light, 3D information is encoded into the spatial coherence structure. Joint transmission is then achieved through two-dimensional (2D) intensity information. Meanwhile, the inherent concealment of the spatial coherence structure enables the synchronous transmission of hidden information. The incorporation of hidden information enhances system security, ensures transmission integrity, and facilitates the detection of degradation, loss, or tampering. This method achieves both efficient encrypted transmission and high-fidelity 3D reconstruction, markedly enhancing physical-layer security and resistance to attacks. This work provides a coherence structure–based framework for secure and efficient transmission of 3D data.</p>\u0000 </div>","PeriodicalId":8250,"journal":{"name":"Annals of the New York Academy of Sciences","volume":"1562 1","pages":""},"PeriodicalIF":4.5,"publicationDate":"2026-08-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148753502","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Design of an Adaptive Model for Intelligent Car Seats Based on Human Pose Recognition 基于人体姿态识别的智能汽车座椅自适应模型设计

IF 4.5 3区综合性期刊

Annals of the New York Academy of Sciences Pub Date : 2026-08-12 DOI: 10.1111/nyas.70369

Yunpeng Bai, Min Zhao, Wanming Zhong, Yuanjun Li, Chenjie Zhao, Bingjun Liu, Yunfeng Bai, Dengkai Chen

{"title":"Design of an Adaptive Model for Intelligent Car Seats Based on Human Pose Recognition","authors":"Yunpeng Bai, Min Zhao, Wanming Zhong, Yuanjun Li, Chenjie Zhao, Bingjun Liu, Yunfeng Bai, Dengkai Chen","doi":"10.1111/nyas.70369","DOIUrl":"10.1111/nyas.70369","url":null,"abstract":"<div>\u0000 \u0000 <p>Electric vehicles (EVs) are moving toward greater intelligence and personalization, but the dynamic adaptability of current vehicle seats no longer meets drivers’ comfort and safety needs. To address insufficient posture adaptation and low recognition accuracy for occluded joints, this study proposes an intelligent seat adaptive adjustment model on the basis of human pose recognition. Kinect V2 was used to collect drivers’ posture data, and features were extracted through a cascaded pose analysis network (PSN) integrating a spatial transformer network, squeeze-and-excitation module, and convolutional block attention module. The network recognized 16 joint points with an average accuracy of 0.87, a [email protected] (percentage of correct keypoints within 20% of limb length) of 0.92, and a mean per joint position error (MPJPE) of 3.2 mm. Considering biomechanical and vehicle physical constraints, a seat adjustment model was established and optimized using the analytic hierarchy process (AHP) to coordinate seat fore–aft position, height, and backrest angle. Simulated driving experiments suggested preliminary effectiveness: Subjective comfort increased by about 30%, lumbar muscle activity decreased by 39.5%, and posture estimation plus parameter generation remained within 0.3 s. These findings indicate preliminary feasibility for intelligent seat posture assistance under simulated conditions, whereas practical safety validation in real driving conditions remains for future work.</p>\u0000 </div>","PeriodicalId":8250,"journal":{"name":"Annals of the New York Academy of Sciences","volume":"1562 1","pages":""},"PeriodicalIF":4.5,"publicationDate":"2026-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148709483","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Early Ocular Response to Visual Motion in Patients With Persistent Postural-Perceptual Dizziness 持续性体位-知觉头晕患者的早期视觉运动反应

IF 4.5 3区综合性期刊

Annals of the New York Academy of Sciences Pub Date : 2026-08-12 DOI: 10.1111/nyas.70378

Vergil V. Mavrodiev, Konrad P. Weber, Christopher J. Bockisch, Fabienne C. Fierz

{"title":"Early Ocular Response to Visual Motion in Patients With Persistent Postural-Perceptual Dizziness","authors":"Vergil V. Mavrodiev, Konrad P. Weber, Christopher J. Bockisch, Fabienne C. Fierz","doi":"10.1111/nyas.70378","DOIUrl":"10.1111/nyas.70378","url":null,"abstract":"<p>Persistent postural-perceptual dizziness (PPPD) patients with visual dependency rely more on visual cues and may have altered oculomotor responses to visual motion. This study examined early eye movement responses to large-field motion stimuli—the ocular following responses (OFRs)—in 30 PPPD patients and 29 healthy controls. Participants viewed horizontal motion in peripheral and/or central visual fields while eye movements were recorded. OFR velocity 200 ms after stimulus onset and suppression efficacy were analyzed across four central field sizes from 5° to 42° radius. Both groups exhibited strong OFRs to stimuli in the central visual field that increased with the size of the stimulation area. When the central visual field was stationary and the surrounding area moved, patients showed significantly higher eye velocity than controls. Both groups could partially suppress OFRs, but healthy controls were more effective at suppressing eye movements during peripheral stimulation. Patients also showed greater visual dependency on the dynamic subjective visual vertical (2.2° vs. 1.2°), which correlated with OFR magnitude. Overall, PPPD patients were less able to keep their eyes still during peripheral visual motion, producing greater retinal slip and disrupting volitional fixation—an abnormality that may contribute to dizziness and discomfort in visually complex environments.</p>","PeriodicalId":8250,"journal":{"name":"Annals of the New York Academy of Sciences","volume":"1562 1","pages":""},"PeriodicalIF":4.5,"publicationDate":"2026-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/nyas.70378","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148715427","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Pain Expectation in Individuals With High Autistic Traits: Decision–Evaluation Processes and Oxytocin Modulation 高自闭症个体的疼痛预期：决策-评估过程与催产素调节

IF 4.5 3区综合性期刊

Annals of the New York Academy of Sciences Pub Date : 2026-08-12 DOI: 10.1111/nyas.70365

Jiafeng Zhu, Shihao Chen, Wenting Zhang, Jia Li, Xinxin Lin, Richu Jin, Weiwei Peng

{"title":"Pain Expectation in Individuals With High Autistic Traits: Decision–Evaluation Processes and Oxytocin Modulation","authors":"Jiafeng Zhu, Shihao Chen, Wenting Zhang, Jia Li, Xinxin Lin, Richu Jin, Weiwei Peng","doi":"10.1111/nyas.70365","DOIUrl":"10.1111/nyas.70365","url":null,"abstract":"<div>\u0000 \u0000 <p>Pain reflects both sensory input and predictive processes shaped by expectations. Individuals with high autistic traits (HATs) often exhibit atypical pain responses, potentially due to alterations in anticipatory processing. This study investigated pain anticipation in HAT individuals and examined the modulatory effects of oxytocin using behavioral, computational, and pharmacological approaches. In experiment 1, HAT and low autistic trait (LAT) individuals completed a cue-based pain anticipation task. Anticipatory processing was characterized through two components: decision-related processes and evaluative responses. HAT individuals showed altered decision-making, characterized by greater caution under uncertainty and reduced processing efficiency under certain high-pain conditions. They also exhibited more negative evaluative responses, which were associated with poorer psychological health. In experiment 2, HAT participants received intranasal oxytocin or placebo. Oxytocin selectively influenced decision-related processes under uncertainty, increasing evidence accumulation and reducing nondecision time while also increasing the tendency to choose high-pain outcomes under ambiguous conditions. In contrast, oxytocin showed limited effects on evaluative measures. These findings suggest that pain anticipation in HAT individuals involves partially distinct decision-related and evaluative components and that oxytocin exerts process-specific effects on anticipatory processing.</p>\u0000 </div>","PeriodicalId":8250,"journal":{"name":"Annals of the New York Academy of Sciences","volume":"1562 1","pages":""},"PeriodicalIF":4.5,"publicationDate":"2026-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148709484","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Distinct Rhythmic Competencies Identified via Internet-Based Assessment 通过基于互联网的评估识别出独特的节奏能力。

IF 4.5 3区综合性期刊

Annals of the New York Academy of Sciences Pub Date : 2026-08-11 DOI: 10.1111/nyas.70372

Anna Fiveash, Nicholas E. V. Foster, Reyna L. Gordon, Simone Dalla Bella, Barbara Tillmann

{"title":"Distinct Rhythmic Competencies Identified via Internet-Based Assessment","authors":"Anna Fiveash, Nicholas E. V. Foster, Reyna L. Gordon, Simone Dalla Bella, Barbara Tillmann","doi":"10.1111/nyas.70372","DOIUrl":"10.1111/nyas.70372","url":null,"abstract":"<p>Rhythm is a fundamental element of music that recruits perception and production pathways in the brain, and occurs across different timescales. Research suggests that rhythmic processing is composed of several related, yet potentially distinct competencies, including perception, production, beat-based processing, and sequence memory-based processing. Based on a recent lab-based study by Fiveash et al., the current experiment investigated whether these distinctions could be replicated with more participants (<i>n</i> = 300) completing an internet-based protocol, with the potential to be scaled up to larger samples. Production tasks included unpaced tapping and paced tapping to music (from the Battery for the Assessment of Auditory Sensorimotor and Timing Abilities). Perception tasks included the beat alignment test, the Burgundy best Musical Aptitude Test (synchronization), and the beat-based advantage task. Principal component analyses revealed strong overlap across tests. However, separations were shown between perception and production tasks, and unpaced and paced tapping tasks. Cluster analyses revealed participants with different rhythmic profiles, for example, (1) strong beat-based rhythm perception, weak sequence memory-based rhythm perception; and (2) strong production, weak perception. These results have implications for future research investigating individual differences in general and clinical populations, with the potential to guide clinical interventions.</p>","PeriodicalId":8250,"journal":{"name":"Annals of the New York Academy of Sciences","volume":"1562 1","pages":""},"PeriodicalIF":4.5,"publicationDate":"2026-08-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/nyas.70372","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148705373","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Dance-Based Interventions for Mental Health: A Comprehensive and Quality-Sensitive Umbrella Review of Definitions, Measurement Practices, and Evidence Fragmentation 以舞蹈为基础的心理健康干预：对定义、测量方法和证据碎片的全面和质量敏感的综合综述

IF 4.5 3区综合性期刊

Annals of the New York Academy of Sciences Pub Date : 2026-08-08 DOI: 10.1111/nyas.70358

Xinyu Dou, Xu Zhu

{"title":"Dance-Based Interventions for Mental Health: A Comprehensive and Quality-Sensitive Umbrella Review of Definitions, Measurement Practices, and Evidence Fragmentation","authors":"Xinyu Dou, Xu Zhu","doi":"10.1111/nyas.70358","DOIUrl":"10.1111/nyas.70358","url":null,"abstract":"<p>Dance-based interventions are increasingly used to support mental health and well-being across clinical, community, and educational contexts. However, the review-level evidence remains conceptually and methodologically fragmented. This quality-sensitive umbrella review synthesized 90 review articles identified across five databases. Systematic reviews and meta-analyses were appraised using AMSTAR 2, while scoping, narrative, literature, and clinical reviews were assessed using adapted review-appraisal criteria. Findings from systematic reviews and meta-analyses were used primarily to interpret effectiveness evidence, whereas nonsystematic reviews were used to map conceptual definitions, practice traditions, and measurement issues. The synthesis showed that the field is fragmented at three interrelated levels. First, intervention labels and delivery models are inconsistent, ranging from clearly defined dance/movement therapy to broad and underspecified uses of dance. Second, effectiveness is conceptualized differently across intervention traditions, with therapy-oriented reviews emphasizing symptom reduction and non-therapy-oriented reviews foregrounding well-being, vitality, social connection, and embodied experience. Third, outcome assessment relies predominantly on generic psychological scales, with limited use of movement-sensitive or dance-specific measures. Quality-sensitive evidence suggests that dance-based interventions show promise for well-being, social connection, emotional regulation, and selected symptom outcomes, but confidence remains limited by low review quality, heterogeneous populations, inconsistent intervention reporting, and insufficient attention to primary-study overlap. Future research should move beyond asking whether dance works in general and instead specify what kind of dance, for whom, through which mechanisms, and according to which model of mental health and well-being.</p>","PeriodicalId":8250,"journal":{"name":"Annals of the New York Academy of Sciences","volume":"1562 1","pages":""},"PeriodicalIF":4.5,"publicationDate":"2026-08-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/nyas.70358","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148687837","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Embodied Responses to Harmony and (Poly)Rhythm: An Integrated Ratio-Based Perception-Action Framework 对和谐和（多）节奏的体现反应：基于比例的感知-行动框架

IF 4.5 3区综合性期刊

Annals of the New York Academy of Sciences Pub Date : 2026-08-08 DOI: 10.1111/nyas.70355

Nicola Di Stefano, Edward Large, Charles Spence

{"title":"Embodied Responses to Harmony and (Poly)Rhythm: An Integrated Ratio-Based Perception-Action Framework","authors":"Nicola Di Stefano, Edward Large, Charles Spence","doi":"10.1111/nyas.70355","DOIUrl":"10.1111/nyas.70355","url":null,"abstract":"<p>Harmony and rhythm perception have traditionally been treated as separate perceptual phenomena in auditory cognitive science. Yet, both involve inherently oscillatory and periodic structures. Converging evidence suggests that harmonic and rhythmic patterns that can be described in terms of (approximate) low-order integer relationships are often perceived differently from those characterized by more complex relations. In harmony, small integer frequency ratios (e.g., 2:1 for the octave, 3:2 for the perfect fifth) are related to perceived consonance and ease of auditory encoding. Similarly, rhythmic patterns whose component durations can be expressed by simple ratios (e.g., 2:1, 3:1) as well as polyrhythms based on simple ratios (e.g., 2:3, 3:4) are more readily detected, produced, and remembered than those based on more complex ratios. In this paper, we ask whether these perceptual and processing advantages reflect underlying shared mechanisms across harmonic and rhythmic domains. Furthermore, we explore whether and how these advantages extend into the motor domain. Grounding on neural resonance theory, we propose an integrated ratio-based framework that links the perceptual salience of low-order integer relationship in rhythm and harmony to enhanced sensorimotor synchronization.</p>","PeriodicalId":8250,"journal":{"name":"Annals of the New York Academy of Sciences","volume":"1562 1","pages":""},"PeriodicalIF":4.5,"publicationDate":"2026-08-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/nyas.70355","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148687862","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Cerium Alloying in Nanobainitic Steel: A Double-Edged Effect on Austenite and Toughness 纳米贝氏体钢中的铈合金：对奥氏体和韧性的双刃效应

IF 4.5 3区综合性期刊

Annals of the New York Academy of Sciences Pub Date : 2026-08-06 DOI: 10.1111/nyas.70367

Fenglou Du, Jie Kang, Dayong Wu, Haikun Ma, Wang Li, Ru Su

{"title":"Cerium Alloying in Nanobainitic Steel: A Double-Edged Effect on Austenite and Toughness","authors":"Fenglou Du, Jie Kang, Dayong Wu, Haikun Ma, Wang Li, Ru Su","doi":"10.1111/nyas.70367","DOIUrl":"10.1111/nyas.70367","url":null,"abstract":"<div>\u0000 \u0000 <p>The intricate interplay among cerium (Ce) alloying, phase transformation kinetics, and mechanical behavior in a high-carbon nanobainitic bearing steel was systematically investigated. Steels with Ce contents of 0, 0.032, and 0.054 wt.% were subjected to isothermal bainitic treatments, revealing that Ce acts as a critical phase transformation regulator and microstructure refiner. Contrary to expectations, low-level Ce addition significantly suppressed the bainitic transformation completion, leading to incomplete reaction and a two- to fourfold increase in the volume fraction of retained austenite (RA). This abundant, stable RA is identified as the primary source for a substantial and continuous improvement in impact toughness, even as the fracture mode remained quasi-cleavage. Furthermore, the dual effect of Ce was revealed: addition of 0.032 wt.% Ce refined prior austenite grains from 57 to 40 µm and modified inclusions into fine oxysulfides, whereas a higher content of 0.054 wt.% resulted in grain coarsening and the formation of large, detrimental Ce-phosphide inclusions. These negative microstructural changes partially offset the toughness gains, explaining the diminished rate of improvement at higher Ce levels. These findings provide a new strategy for designing high-toughness nanobainitic steels by controlling the RA content through Ce alloying.</p>\u0000 </div>","PeriodicalId":8250,"journal":{"name":"Annals of the New York Academy of Sciences","volume":"1562 1","pages":""},"PeriodicalIF":4.5,"publicationDate":"2026-08-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148682174","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0