International Journal of Plasticity最新文献

{"title":"A crystal plasticity-informed data-driven model for magnesium alloys","authors":"Ding Tang, Shikun Qi, Kecheng Zhou, May Haggag, Xiaochuan Sun, Dayong Li, Huamiao Wang, Peidong Wu","doi":"10.1016/j.ijplas.2025.104480","DOIUrl":"https://doi.org/10.1016/j.ijplas.2025.104480","url":null,"abstract":"In the past few years, data-driven models based on artificial neural network (ANN) have been successfully developed and applied to investigate the macro- and micro-mechanical behaviors of various materials. However, these data-driven models are either too complex in structure or lack interpretable physical insights. In the present work, a crystal plasticity-informed data-driven (CPIDD) model is proposed, which updates the microstructural information and parameters associated with the macroscopic constitutive model using a parallel ANN structure, and combines conventional constitutive equations to obtain the stress-strain response, ensuring efficient and stable calculations. In conjunction with the finite element (FE) method, the FE-CPIDD model simulates the micro- and macro-mechanical behaviors of magnesium (Mg) alloys under uniaxial loading, non-proportional loading, four-point bending and unloading. The comparison between the simulations and available experiments (or crystal plasticity simulations) demonstrates the accuracy and effectiveness of the proposed CPIDD model. Using Mg alloys as a representative case, the CPIDD model provides an operational and extensional tool for the design, fabrication, manufacturing, and service of the metallic components.","PeriodicalId":340,"journal":{"name":"International Journal of Plasticity","volume":"31 1","pages":""},"PeriodicalIF":9.8,"publicationDate":"2025-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145043055","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}

{"title":"Abnormal stress rebound after dynamic void coalescence in metallic glasses","authors":"Jing He, Guoji Yu, Zongheng Li, Yunlong Guan, Yun-iang Wang","doi":"10.1016/j.ijplas.2025.104478","DOIUrl":"https://doi.org/10.1016/j.ijplas.2025.104478","url":null,"abstract":"Understanding the microscopic mechanism of void coalescence is essential for evaluating the accumulation of dynamic damage in structural materials. However, experimental characterization of such a transient process remains extremely challenging. Here, the spatial arrangement of pre-existing voids and the influence of strain rate on dynamic void coalescence in a prototypical metallic glass (MG) are systematically investigated by molecular dynamics under conditions of uniaxial (1D) and triaxial (3D) tensile loading. It is found that, under 1D loading, the void arrangement affects only the stress-strain response, without impacting the growth and coalescence rate of the voids. However, under 3D dynamic loading, temperature around the voids undergoes a significant decrease after void coalescence. From the perspective of atomic packing, the number of mechanically stable <0,0,12,0> atomic Voronoi polyhedra recovers as strain rate goes up. As a result, material experiences abnormal stress rebound after void coalescence due to the unexpected microstructural hardening effect, which is absent in crystalline metals. Meanwhile, the stress rebound strength can be controlled by adjusting void characteristics or material parameters. This unusual stress rebound might find applications for metallic materials under extreme conditions.","PeriodicalId":340,"journal":{"name":"International Journal of Plasticity","volume":"33 1","pages":""},"PeriodicalIF":9.8,"publicationDate":"2025-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145043062","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}

{"title":"Mechanistic insights into stress localization and crack precursors during dwell fatigue: dislocation evolution from basal slip in near-α titanium alloys","authors":"Runchen Jia, Weidong Zeng, Heng Li, Zibo Zhao, Yujing Liu, Meng Qi, Boning Wang, Jiaxi Zhu, Jianwei Xu, Qingjiang Wang","doi":"10.1016/j.ijplas.2025.104477","DOIUrl":"https://doi.org/10.1016/j.ijplas.2025.104477","url":null,"abstract":"Basal slips govern the onset of dwell-fatigue damage in near-α titanium alloys, yet the mechanisms by which they rapidly evolve into crack nucleation under dwell loading remain insufficiently understood. To address this gap, we apply a multiscale framework combining in-situ dwell-fatigue testing, high-resolution dislocation microscopy, and atomistic simulations to directly uncover how basal dislocation structures develop into crack precursors. Notably, for the first time under dwell-fatigue conditions, we demonstrate that the concurrent activation of multiple basal <a> slips on a single plane induces marked intragranular lattice rotations and strain localization, thereby accelerating damage accumulation. Conversely, co-activation of prismatic and pyramidal slip systems fragments these bands, redistributes strain, and markedly improves dwell-fatigue resistance. Furthermore, a critical slip-transfer mechanism is clarified, wherein basal dislocation transmission across grain boundaries is strongly governed by misorientation: low-angle boundaries permit near-continuous transmission, promoting dislocation pile-ups and local stress amplification, while high-angle boundaries impede slip and facilitate <c+a> dislocation nucleation via interfacial shear to restore compatibility. Moreover, molecular dynamics simulations validate the broader and higher-amplitude strain fields of basal bands under dwell loading and further uncover a previously unrecognized stress-assisted edge-to-screw dislocation transformation that sustains localized shear, intensifies strain gradients, and predisposes the slip band to premature crack initiation. Collectively, these findings establish a unified failure pathway for basal slip–induced damage, offering new mechanistic insights into how slip-band evolution and dislocation interactions give rise to crack precursors, and informing alloy-design strategies to mitigate dwell fatigue in near-α titanium alloys.","PeriodicalId":340,"journal":{"name":"International Journal of Plasticity","volume":"50 1","pages":""},"PeriodicalIF":9.8,"publicationDate":"2025-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145043234","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}

{"title":"Using mechanical equilibrium to correct HR-EBSD stress measurements","authors":"Eralp Demir, Anna Kareer, Chris Hardie, Edmund Tarleton","doi":"10.1016/j.ijplas.2025.104464","DOIUrl":"https://doi.org/10.1016/j.ijplas.2025.104464","url":null,"abstract":"High-resolution electron-backscatter diffraction (HR-EBSD) is widely adopted as a method to obtain local stress and strain distributions in both single-crystal and polycrystalline materials. In this study, we develop a finite element-based method that serves as a numerical correction to refine the relative stress measurements captured experimentally from HR-EBSD and to ensure that the measurements satisfy mechanical equilibrium and traction-free surface constraints. The method provides a calculation of stress for each of the reference points instead of assuming the reference point stresses are zero, capturing the grain-to-grain variation in polycrystalline EBSD maps. The experimental data including a cross section of nanoindentation in unirradiated and heavy-ion-irradiated single-crystals of iron as well as polycrystalline austenitic stainless steel are analysed, and the method improves the measured stresses near slip bands, grain boundaries, and hard phases while keeping the stresses physically consistent with mechanical equilibrium and ensuring that free surfaces are traction-free. The three-dimensional analysis enables the fulfilment of traction-free surface constraints, resulting in zero out-of-plane shear stress components on the free surfaces while maintaining nonzero out-of-plane shear stress components below the surface. To demonstrate the validity of this approach, the method is applied to synthetically generated relative stress data for a uniform bending case, and the method successfully predicts the stress distributions.","PeriodicalId":340,"journal":{"name":"International Journal of Plasticity","volume":"29 1","pages":""},"PeriodicalIF":9.8,"publicationDate":"2025-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145043119","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}

{"title":"Ultra-low temperature mechanical response of VCoNi medium-entropy alloy with unprecedented high strength and ductility","authors":"Tae Jin Jang ,&nbsp;Min Young Sung ,&nbsp;Gunjick Lee ,&nbsp;Hahun Lee ,&nbsp;Jun Ho Lee ,&nbsp;Alireza Zargaran ,&nbsp;Young-Kyun Kim ,&nbsp;Zhiming Li ,&nbsp;Young-Sang Na ,&nbsp;Seok Su Sohn","doi":"10.1016/j.ijplas.2025.104473","DOIUrl":"10.1016/j.ijplas.2025.104473","url":null,"abstract":"<div><div>This work reports on the unprecedented high tensile strength and ductility of single-phase VCoNi medium-entropy alloys (MEAs) at liquid helium temperature (4.2 K) and reveals the effects of grain size on strength, strain-hardening capability, and discontinuous plastic flow (DPF) behavior at 4.2 K. The fine-grained VCoNi MEA with an average grain size of 2.2 μm exhibits exceptional yield strength of 1386 MPa and tensile stress of 1845 MPa at a high elongation of 43%. The Hall–Petch (H–P) relationship at 4.2 K for the VCoNi MEA was established for the first time, demonstrating that the yield strength enhancement with decreasing temperature primarily originates from a reduction in dislocation width, leading to an exceptionally high solid-solution strengthening contribution of 782 MPa. In addition to planar slip, nano-twinning and stacking faulting were activated at 4.2 K upon plastic deformation, contributing to a sustained strain-hardening capability. The restricted mobility of screw dislocations at 4.2 K suppresses dynamic recovery, facilitating dislocation proliferation and further enhancing strain hardening. In terms of DPF behavior, characterized by abrupt serrations in the stress-strain curves, fine-grained specimens exhibit more pronounced DPF due to the rapid accumulation of geometrically necessary dislocations. However, the maximum stress drop prior to plastic instability remains similar across all grain sizes, suggesting that dislocation density is the primary factor governing DPF behavior. These findings provide important insights into the development and mechanistic understanding of ultrastrong and ductile alloys for applications at extremely low temperatures.</div></div>","PeriodicalId":340,"journal":{"name":"International Journal of Plasticity","volume":"194 ","pages":"Article 104473"},"PeriodicalIF":12.8,"publicationDate":"2025-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145009440","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}

{"title":"Investigation of twin-dislocation interactions using a novel discrete dislocation plasticity framework","authors":"Hai Xin, Zebang Zheng, Mei Zhan, Yudong Lei, Pandi Zhao, Yuyang Wang, Fei Ma, Gaihuan Yuan, M.W. Fu","doi":"10.1016/j.ijplas.2025.104465","DOIUrl":"https://doi.org/10.1016/j.ijplas.2025.104465","url":null,"abstract":"Twinning-induced strain localization fundamentally governs a material’s ductility and failure mechanisms, complementing the role of dislocation slip in hexagonal close-packed crystals. This localization not only accommodates externally applied deformation through stress redistribution but also generates heterogeneous stress that significantly influences nearby dislocation evolution. In conventional dislocation-scale modeling approaches, such as discrete dislocation plasticity (DDP), twinning is typically represented by introducing twin boundaries and regions with reoriented crystal lattices. These models, however, often neglect the associated strain fields generated during the twinning process, resulting in an incomplete description of twinning-dislocation interactions. To address this limitation, a novel DDP model incorporating twin-induced heterogeneous deformation was developed. The model explicitly includes different stages of twinning, such as nucleation, propagation, and growth, and implements the twin-induced stress field using the classical Eshelby inclusion solution. A new superposition framework was further constructed to capture these stress contributions within the DDP formulation accurately. Based on this model, the experimentally observed characteristic twin-induced dislocation arrays in single crystals and bicrystal were successfully reproduced. Moreover, through comparison with the twin-free model, twin-dislocation interactions in polycrystals were quantitatively analyzed, demonstrating the capability of the model to resolve complex plasticity mechanisms across different microstructures.","PeriodicalId":340,"journal":{"name":"International Journal of Plasticity","volume":"69 1","pages":""},"PeriodicalIF":9.8,"publicationDate":"2025-09-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145009442","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}

{"title":"Novel approach to achieve gigapascal level yield strength and large uniform elongation in metastable β-Ti alloys","authors":"Xiu-Qun Wang ,&nbsp;Yan Chong ,&nbsp;Masatoshi Mitsuhara ,&nbsp;Nobuhiro Tsuji","doi":"10.1016/j.ijplas.2025.104466","DOIUrl":"10.1016/j.ijplas.2025.104466","url":null,"abstract":"<div><div>Metastable β titanium alloys exhibit an excellent strain hardening ability and a large uniform elongation, but their widespread use is challenged by a relatively low yield strength. The low yield strength of metastable β titanium alloys is partly due to an early initiation of strain-induced β-to-α″ phase transformation. Here, we propose a novel and cost-effective approach to solve this problem in a model Ti-10 wt.% Mo alloy by refining the grain size and adding oxygen solute. An unprecedented high yield strength of 1040 MPa and a large uniform elongation of 20 % are realized in a fine-grained (average grain size: 5 µm) Ti-10 wt.% Mo-0.5 wt.% O alloy. The superior strength-ductility balance is attributed to a ‘<em>delayed and partially suppressed</em>’ β-to-α″ phase transformation, due to the combined effects of fine grain size and oxygen solute. The <em>delayed</em> β-to-α″ phase transformation (until a plastic strain of 2.1 %) endows dislocation slips as the main factor determining the yield strength, thus enabling a full harness of grain boundary strengthening and oxygen solute hardening. Moreover, {332} twinning activated at the early stage and strain-induced α″ martensite initiated at the later stage of deformation provide continuous strain-hardening capabilities up to a relatively larger strain. Finally, the formation of relatively soft α″ martensite helps to relax the stress localization at slip bands, delaying the formation of microcracks, compared to the coarse-grained counterparts. The novel approach in the present study provides a general strategy to manage both high yield strength and large uniform elongation in metastable β titanium alloys, via tailoring both structural (grain size) and compositional (oxygen content) parameters of the material.</div></div>","PeriodicalId":340,"journal":{"name":"International Journal of Plasticity","volume":"194 ","pages":"Article 104466"},"PeriodicalIF":12.8,"publicationDate":"2025-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145003499","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}

{"title":"Revisiting tension-compression asymmetry in a Mg alloy: insights from statistical strain partitioning and intra-/inter-granular mechanisms at the nanoscale","authors":"Ran Ni, Carl J. Boehlert, Xianhua Zheng, Yaming Ran, Saijun Huang, Ying Zeng, Jiang Zheng, Qudong Wang, Hao Zhou, Dongdi Yin","doi":"10.1016/j.ijplas.2025.104463","DOIUrl":"https://doi.org/10.1016/j.ijplas.2025.104463","url":null,"abstract":"Tension-compression asymmetry (TCA) is a fundamental mechanical characteristic in Mg alloys. However, its underlying integrated intra- and inter-granular deformation modes and the corresponding nanoscale strain partitioning remain unclear. In this work, the nanoscale strain partitioning together with the activity of both the individual slip modes and grain boundary sliding/shear (GBS), in terms of tangential displacement along the GBs, were quantitatively and statistically investigated based on approximately 200 grains analyzed for an aged twin-free Mg-10Y sheet during tension and compression. This was accomplished using multimodal analysis of high-resolution digital image correlation (HRDIC) and electron backscattered diffraction (EBSD) data. The results revealed that strain partitioning exhibited pronounced TCA, where the mean and maximum effective shear strain (ε_eff) values of both slip bands (SBs) and the grain mantle (GM, the region near grain boundary) for tension were larger than that for compression, implying more intensive strain localization in tension. TCA was also evident from analysis of the relative slip activity for the various slip modes, where pyramidal &lt;c+a&gt; slip was barely activated during tension, but it exhibited a relatively high activity during compression. The GBS activity, which was quantified in terms of both the GBS displacement and the participation rate, was higher for tension compared with compression. This work, which demonstrates experimental and quantitative TCA strain partitioning and GBS characteristics for the first time, provides valuable experimental information useful for a more complete understanding of TCA in polycrystalline Mg alloys.","PeriodicalId":340,"journal":{"name":"International Journal of Plasticity","volume":"31 1","pages":""},"PeriodicalIF":9.8,"publicationDate":"2025-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144928116","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}

{"title":"Composition-deformation mechanism-property machine learning model for strength-ductility improvement of β-type titanium alloys","authors":"Junyun Pan ,&nbsp;Renhai Shi ,&nbsp;Zhihao Zhang ,&nbsp;Hongtao Zhang ,&nbsp;Yuhong Zhao ,&nbsp;Weidong Li ,&nbsp;Huadong Fu ,&nbsp;Jianxin Xie","doi":"10.1016/j.ijplas.2025.104461","DOIUrl":"10.1016/j.ijplas.2025.104461","url":null,"abstract":"<div><div>Maximizing solid-solution hardening while incorporating deformation twinning is crucial for simultaneously enhancing their strength and ductility of β-type titanium alloys. This study proposes an integrated composition design framework (ICDF) that combines a deformation mechanism machine learning model with a yield strength machine learning model. This framework enables precise control of strengthening and deformation mechanism, effectively addressing the strength-ductility trade-off challenge of β-type titanium alloys. First, using the key alloy factor screening method, the key alloy factor-deformation mechanism prediction model and key alloy factor-yield strength prediction model were developed. Then, five kinds of new β-type titanium alloys with excellent comprehensive properties were designed by combining the two models. The new alloy Ti-5Cr-3Mo-1.5Fe exhibited a tensile strength of 1030 MPa, a yield strength of 920 MPa, and an elongation of 28 %. Compared with the commonly used commercial β-type titanium alloy Ti-5Al-5Mo-5V-3Cr (AMS 4983), the strength-ductility product of the new alloy increased by 71.7 %, while the total alloying element content decreased by 47.2 %. The new alloy exhibits intriguing deformation twinning behaviors, including stress-induced {332} 〈113〉 multi-level twinning and {332} 〈113〉 cross-twinning, which, in conjunction with the high solid-solution hardening, results in simultaneous enhancement of strength and ductility. This work provides a novel approach for the rapid design of high performance and low alloying titanium alloys through constructing multi-task models between alloy composition, deformation mechanism and resultant properties.</div></div>","PeriodicalId":340,"journal":{"name":"International Journal of Plasticity","volume":"194 ","pages":"Article 104461"},"PeriodicalIF":12.8,"publicationDate":"2025-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144920782","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}

{"title":"Enhanced deformability through interface and structure tailoring in immiscible metal matrix composites: a case study of W–Cu","authors":"Peng-Cheng Cai,&nbsp;Guo-Hua Zhang,&nbsp;Kuo-Chih Chou","doi":"10.1016/j.ijplas.2025.104460","DOIUrl":"10.1016/j.ijplas.2025.104460","url":null,"abstract":"<div><div>The W–Cu composite, a representative of immiscible metal matrix composites (MMCs), plays a crucial role in fields requiring both mechanical and physical properties. However, the weak interfacial bonding capability between the immiscible phases lead to poor mechanical response. In present work, a considerable interpenetrating diffusion layer and an atomic bonding interface (termed as the 3D interface) with a considerable thickness of ∼10 nm was constructed through the introduction of negative mixing enthalpy elements. Additionally, a partially recrystallized (PRX) heterogeneous matrix was built through precise thermomechanical processing (TMP) treatment. The presence of the 3D interface and PRX structure created additional space for dislocation storage, leading to a high level of heterogeneous deformation-induced (HDI) stress. On one hand, intensified activation stress was triggered for twinning in the face-centered cubic (FCC) matrix, promoting twin-mediated dynamic recrystallization (TDRX) during tensile deformation and effectively alleviating stress concentration. On the other hand, the resulting long-range internal stress not only induced large-scale abnormal twinning and phase transformation at the interface, enhancing work-hardening capacity, but also significantly improved load transfer across the W/Cu interface. In addition, the abundant sub-grain structures and free dislocations induced by rolling deformation promote the plasticization of W particles. Consequently, the composite subjected solely to straightforward infiltration and TMP (including hot rolling, warm rolling, and cold rolling) achieved a remarkable enhancement in both strength and ductility, with the cold-rolled sample exhibiting an ultrahigh tensile strength-ductility combination (1290 MPa, 8.5 %), representing a 2–3 times enhancement over conventional W–Cu composites. This work elucidates nanoscale interface–dislocation interactions in MMCs, shedding new light on the development of structure-function-integrated materials.</div></div>","PeriodicalId":340,"journal":{"name":"International Journal of Plasticity","volume":"193 ","pages":"Article 104460"},"PeriodicalIF":12.8,"publicationDate":"2025-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144919180","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}