Journal of Materials Engineering and Performance最新文献

{"title":"Study on the Effects of Prestrain on the Corrosion Behavior and Mechanical Properties of Q690 High-Strength Steel","authors":"Zi-Rui Bao,&nbsp;Zheng Peng,&nbsp;Wen-Jiao Dan","doi":"10.1007/s11665-026-13635-2","DOIUrl":"10.1007/s11665-026-13635-2","url":null,"abstract":"<div><p>Q690 high-strength steel is widely used in marine engineering structures because of its excellent mechanical properties and corrosion resistance. However, the prestrain that is inevitably generated during manufacturing and forming processes significantly alters its in-service behavior. To address this issue, in this study, the corrosion behavior and postcorrosion mechanical property evolution of Q690 high-strength steel under simulated seawater conditions at various prestrain levels were systematically investigated. By applying prestretching deformations of 0, 4, 7, and 10%, combined with accelerated corrosion tests, microstructural characterization (by OM, SEM, EBSD, and XRD), and uniaxial tensile tests, the influence mechanisms of prestrain on the corrosion rate, microstructural evolution, and mechanical property degradation were analyzed. The results indicate that prestrain significantly increases the yield strength and tensile strength of Q690 high-strength steel while reducing its ductility. Concurrently, prestrain accelerates corrosion progression in seawater environments, with corrosion rates increasing with increasing prestrain magnitude. Notably, prestrain effectively delays the postcorrosion decreases in yield strength and tensile strength, although this delaying effect diminishes under higher prestrain conditions. Building upon these findings, a mechanical parameter degradation model and a stress–strain model that account for the combined effects of prestressing and corrosion duration were established, thereby enabling effective prediction of the postcorrosion mechanical behavior of Q690 high-strength steel. The results provide a valuable theoretical reference for the performance evaluation and engineering application of formed high-strength steel structures in marine environments.</p></div>","PeriodicalId":644,"journal":{"name":"Journal of Materials Engineering and Performance","volume":"35 Focus—Space","pages":"38564 - 38580"},"PeriodicalIF":2.6,"publicationDate":"2026-08-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149214601","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Inconel/Cu Multimetallic Composites for Space Applications under Radiation","authors":"Rajesh Ramesh,&nbsp;Sara Neshani,&nbsp;Kasra Momeni","doi":"10.1007/s11665-026-14757-3","DOIUrl":"10.1007/s11665-026-14757-3","url":null,"abstract":"<div><p>Additively manufactured Inconel/GRCop-84 is a candidate material for rocket nozzles. In this study, we explored the effects of space radiation on the stability and integrity of representative Inconel/Cu interfaces using atomistic simulations with previously validated interatomic potentials to assess their viability for extraterrestrial applications. We examined the mechanochemistry of the constituent elements and their effects on radiation resistance across two Inconel variants: Inconel 625 (Ni₇₂Cr₂₃Fe₅) and Inconel 718 (Ni₅₅Cr₂₁Fe₂₄). Our findings reveal three distinct stages—i.e., linear, exponential, and plateau—in the relationship between Frenkel Pair (FP) defect density and radiation damage. FP defect clustering planes were identified on both the Inconel and Cu sides, with Stacking Faults (SF) and Lomer-Cottrell (LC) locks forming on the Inconel side. Moreover, we determined that the orientation of the FP defect clustering planes was influenced by shear stress. We also found that a higher Fe concentration reduces diffusivity between metallic layers, while a higher Cr concentration, owing to its low migration energy barrier, enhances diffusivity.</p></div>","PeriodicalId":644,"journal":{"name":"Journal of Materials Engineering and Performance","volume":"35 Focus—Space","pages":"38508 - 38523"},"PeriodicalIF":2.6,"publicationDate":"2026-08-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s11665-026-14757-3.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149214578","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Sustainable PVDF Magnetic Nanocomposites with Rice Husk-Derived Nanosilica and Doped Ferrites for Enhanced Multifunctional Properties for Varied Applications","authors":"Abhishek Ranjan,&nbsp;Sidhant Mallick,&nbsp;Aniket Manash,&nbsp;Md. Muzzammilul Haque Siddiqui,&nbsp;Sujit Kumar,&nbsp;Md. Irshad Alam,&nbsp;Md. Masood Rashid","doi":"10.1007/s11665-026-14503-9","DOIUrl":"10.1007/s11665-026-14503-9","url":null,"abstract":"<div><p>Using rice husk-derived crystalline nanosilica as a sustainable precursor, a multifunctional PVDF–potassium-doped magnesium ferrite magnetic nanocomposite was successfully fabricated through an injection-molding technique. The novelty of the present work lies in the synergistic integration of agricultural waste-derived nanosilica with alkali-metal-doped ferrite within a PVDF matrix to achieve enhanced multifunctional properties suitable for advanced electronic and energy-related applications. Structural investigations confirmed the formation of a phase-pure and structurally stable composite, while FTIR analysis revealed characteristic Si-O, Fe-O, M-O, and <i>α</i>/<i>β</i>-PVDF bonding. SEM observations demonstrated uniformly distributed spherical nanoparticles with minimal agglomeration due to improved interfacial interaction and surface energy effects. Thermal studies showed a significant enhancement in thermal stability, with Tmax increasing from 479.1 to 565 °C owing to strong interfacial contacts and homogeneous nanoparticle dispersion. Magnetic measurements indicated a transition from diamagnetic to ferromagnetic behavior, with coercivity increasing from 184 to 224 Oe, whereas the diamagnetic contribution of nanosilica resulted in controlled saturation magnetization. The incorporation of ferrite also enhanced the dielectric polarization response, demonstrating the composite’s suitability for dielectric applications. Optical studies revealed semiconducting band gap values of 1.75 and 2.16 eV, while negative zeta potential values confirmed excellent colloidal stability. The coexistence of magnetic hysteresis and dielectric polarization within a sustainable polymer matrix highlights the multifunctional nature of the developed nanocomposite and its potential applications in EMI shielding, flexible electronics, magnetic polymers, semiconductors, and energy devices.</p></div>","PeriodicalId":644,"journal":{"name":"Journal of Materials Engineering and Performance","volume":"35 Focus—Space","pages":"38982 - 38999"},"PeriodicalIF":2.6,"publicationDate":"2026-08-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149214576","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effect of Hydrogen Content on the Microstructure and Warm Deformation Behavior of Ti-6Al-4V Alloy","authors":"Lixing Zhu,&nbsp;Zhiyong Zhao,&nbsp;Yangang Wang,&nbsp;Yaoqi Wang,&nbsp;Zhengzheng Yin","doi":"10.1007/s11665-026-14787-x","DOIUrl":"10.1007/s11665-026-14787-x","url":null,"abstract":"<div><p>Titanium alloys are widely used in aerospace, marine, and biomedical industries due to their excellent strength-to-weight ratio, heat resistance, and corrosion resistance. However, the high forming temperatures and complex processing requirements pose significant challenges. Improving the deformability of titanium alloys remains a critical research focus. This study investigates the effect of hydrogen on the warm deformation behavior of Ti-6Al-4V alloy. Samples with hydrogen contents of 0.12, 0.45, and 0.82 wt.% were prepared using a solid-state hydrogenation process and then tested via Gleeble thermomechanical simulation in the 400-700 °C range. As the hydrogen content increases, the grain size of the Ti-6Al-4V alloy significantly decreases due to recrystallization in hydrogenation process, from 5.91 ± 0.45 <i>µm</i> (original) to 4.31 ± 0.35 <i>µm</i> at 0.12 wt.% H (27.1% reduction). Abundant acicular secondary <i>α</i> phase appeared in the 0.45 wt.% hydrogenated Ti-6Al-4V alloy (18.23% area fraction) and increases to 30.83% with hydrogen contents of 0.82 wt.%. The Gleeble results demonstrate that increased deformation temperature and decreased strain rate significantly reduce flow stress, with the most pronounced reduction observed in the alloy containing 0.45 wt.% hydrogen. Based on the true stress–strain curves, a constitutive model was established using the Arrhenius-type hyperbolic sine function, and then, the processing maps were also constructed. Analysis results revealed that the Ti-6Al-4V alloy with hydrogen contents of 0.45 wt.% within a temperature range of 600-700 °C and a strain rate near 0.003 s⁻¹ yields a peak power dissipation efficiency while avoiding instability regions, indicating optimal workability. This study provides a theoretical foundation for designing warm forming processes for hydrogenated titanium alloys.</p></div>","PeriodicalId":644,"journal":{"name":"Journal of Materials Engineering and Performance","volume":"35 Focus—Space","pages":"38849 - 38865"},"PeriodicalIF":2.6,"publicationDate":"2026-08-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149214623","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Research of Laser Texturing on Fractal Characteristics at the Interface and Bonding Strength of Plasma-Sprayed Coatings","authors":"Heng Han,&nbsp;Hai Wang,&nbsp;Rui Wang,&nbsp;Xiaofeng Sun,&nbsp;Jian Liu,&nbsp;Zhanming Li,&nbsp;Haichao Zhao,&nbsp;Haidou Wang,&nbsp;Guozheng Ma","doi":"10.1007/s11665-026-14326-8","DOIUrl":"10.1007/s11665-026-14326-8","url":null,"abstract":"<div><p>To investigate the quantitative effects of laser texturing pretreatment on the interfacial properties of supersonic plasma-sprayed coatings, this study systematically examined the mechanisms by which pretreatment-related laser power and frequency influence the surface topography of a 45 steel substrate, the fractal characteristics of the coating-substrate interface, and the bond strength. COMSOL multiphysics simulations revealed the intrinsic relationship between laser energy distribution and material ablation behavior, and substrates with microporous and sinusoidal textures were prepared experimentally. Scanning electron microscopy was used to obtain the morphology of the bonding interface, the box-counting method was employed to calculate the fractal dimension, and bond strength tests were conducted in accordance with the ASTM C633 standard. The results indicate that laser power has a significantly greater influence on the fractal dimension than frequency. The fractal dimension initially increases and then decreases with increasing power, reaching a peak of 1.290 at 30 W and 100 kHz. The trend in bond strength aligns with that of the fractal dimension, and analysis reveals a significant positive correlation between the two. The fractal dimension can serve as a key reference indicator for evaluating interfacial bond quality. This study provides both theoretical foundations and experimental support for optimizing laser texturing and enhancing coating performance.</p></div>","PeriodicalId":644,"journal":{"name":"Journal of Materials Engineering and Performance","volume":"35 Focus—Space","pages":"38581 - 38593"},"PeriodicalIF":2.6,"publicationDate":"2026-08-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149214602","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"An Electron Backscatter Diffraction Investigation of the Evolution of Phase Composition in the White Layer and its Effects on the Wear and Corrosion Behavior of Plasma-Nitrided 42CrMo Steel","authors":"Chunpeng Liu,&nbsp;Zhe Zhang,&nbsp;Chuanwei Li,&nbsp;Zhongyuan Suo,&nbsp;Feng Jiang,&nbsp;Jianfeng Gu","doi":"10.1007/s11665-026-13541-7","DOIUrl":"10.1007/s11665-026-13541-7","url":null,"abstract":"<div><p>In this study, the surface microstructural evolution, wear behavior, and corrosion properties of 42CrMo steel under different plasma-nitriding conditions were analyzed using scanning electron microscopy, x-ray diffraction, and electron backscatter diffraction. The sample’s nitriding depth increased with increasing plasma-nitriding time and nitrogen content. Cracks appeared in the white layer owing to serious lattice distortion. A vein-like structure formed in the diffusion layer under high nitrogen content and long treatment time. With prolonged treatment, a large amount of the ε phase in the white layer transformed into the <i>γ</i>′ phase. Under high-hydrogen conditions, no white layer formed on the sample surface because of the low nitrogen content in the nitriding atmosphere. The sample’s surface hardness, wear resistance, and corrosion resistance increased gradually with increasing nitriding depth. However, under high nitrogen content and long treatment time, the sample’s wear performance slightly decreased owing to flaking of the white layer and the presence of vein-like structures. The corrosion resistance also deteriorated due to crack formation in the white layer. At long treatment times, a high content of the <i>γ</i>′ phase further reduced the sample’s wear and corrosion properties. Under high-hydrogen conditions, the absence of a white layer resulted in poor surface hardness, wear resistance, and corrosion resistance in the samples. The sample’s wear and corrosion mechanisms under different plasma-nitriding conditions are discussed.</p></div>","PeriodicalId":644,"journal":{"name":"Journal of Materials Engineering and Performance","volume":"35 Focus—Space","pages":"38674 - 38685"},"PeriodicalIF":2.6,"publicationDate":"2026-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149214562","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Optimization Strategies for the Design and Application of Titanium Structures in Aerospace Produced by Electron Beam Powder Bed Fusion","authors":"Eric Bol,&nbsp;M. Ramulu","doi":"10.1007/s11665-026-14790-2","DOIUrl":"10.1007/s11665-026-14790-2","url":null,"abstract":"<div><p>Material optimization of structures is critical in aerospace applications where the overall performance and lifecycle cost is highly sensitive to the vehicle weight. The added complexity enabled by powder bed fusion additive manufacturing technologies provides engineers the ability to highly tailor the spatial arrangement of material for components. This work presents three case studies where optimization strategies were applied for a small thruster nozzle, a pod-mounted engine pylon, and turbine engine exhaust sandwich structure. The workflow process for each of these was unique, and required the implementation of design for additive manufacturing (DfAM) methods. In the case of the pylon, the central tapered box beam used a Solid Isotropic Material with Penalty (SIMP) method as a guide, before employing further optimization techniques to achieve an additional 7% weight reduction. Engine exhaust structures often use titanium sandwich material systems where bending stiffness was further optimized using a compliance minimization or stress minimization strategy, all while keeping weight constant. Examples of each were produced by electron beam powder bed fusion (EB-PBF), and the subsequent lessons learned are provided with regard to DfAM best practices.</p></div>","PeriodicalId":644,"journal":{"name":"Journal of Materials Engineering and Performance","volume":"35 Focus—Space","pages":"38452 - 38470"},"PeriodicalIF":2.6,"publicationDate":"2026-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149214574","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Comparison of Rocket Structural Member Performance between Conventional and Additive Manufacturing Design Methodologies","authors":"Zachariah Mears,&nbsp;Mihaela Vlasea","doi":"10.1007/s11665-026-14646-9","DOIUrl":"10.1007/s11665-026-14646-9","url":null,"abstract":"<div><p>In recent years, the use of additive manufacturing (AM) has seen increasing adoption across the aerospace industry for the manufacturing of brackets and other structural components of spacecraft. This can be attributed to the success of design for additive manufacturing (DfAM) techniques to optimize for performance while minimizing mass. Unfortunately, current DfAM approaches such as topology optimization are unable to effectively optimize parts which operate under compressive loading where buckling is a primary concern. In this work, a key structural member of a high-powered sounding rocket is used as a design case study for AM to demonstrate a new methodology for the design of lightweight members under compressive loading. Simulations were deployed to create a functionally graded hollow shell geometry based on the stress response of a solid beam design under specific weight constraints. The beam design was then augmented with internal surface lattices to further prevent thin wall buckling. The final design was manufactured from AlSi10Mg using laser powder bed fusion and tested experimentally against the conventional design made from 7075-T6 aluminum. To execute mechanical testing, a novel test fixture was designed and validated to allow fixed-end free end buckling testing of the printed parts. The design exhibited even stress distribution and very high buckling resistance, demonstrating a 98% increase in critical buckling load compared to the conventional part design despite the two designs having equal mass.</p></div>","PeriodicalId":644,"journal":{"name":"Journal of Materials Engineering and Performance","volume":"35 Focus—Space","pages":"38438 - 38451"},"PeriodicalIF":2.6,"publicationDate":"2026-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149214573","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Application of DLC Film in the Field of Seawater Desalination Heat Exchange Tube Protection","authors":"Shaolong Wang,&nbsp;Zhengyu Liu,&nbsp;Guangan Zhang,&nbsp;Yuefei Ji","doi":"10.1007/s11665-026-14585-5","DOIUrl":"10.1007/s11665-026-14585-5","url":null,"abstract":"<div><p>Low temperature multi-effect distillation (LT-MED) technology holds significant promise for seawater desalination. However, the corrosion and damage of heat exchange tubes critically impair production efficiency. Plasma-enhanced chemical vapor deposition (PECVD) offers a method for depositing diamond-like carbon (DLC) films on both the inner and outer surfaces of these tubes. DLC films exhibit excellent corrosion and wear resistance, making them a promising material for protecting seawater desalination heat exchange tubes. Pre-treatment, such as argon (Ar) etching, can remove the passivation layer on the substrate surface, thereby influencing the film’s microstructure and corrosion resistance. Consequently, this study investigates the optimal Ar etching time to enhance DLC film performance. The corrosion resistance of the deposited films in artificial seawater was evaluated. This research aims to provide a protective material with combined corrosion and wear resistance for LT-MED heat exchange tubes and offer guidance for their corrosion prevention and protection.</p></div>","PeriodicalId":644,"journal":{"name":"Journal of Materials Engineering and Performance","volume":"35 Focus—Space","pages":"38649 - 38659"},"PeriodicalIF":2.6,"publicationDate":"2026-08-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149214606","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Computational Modeling of Plasma Transferred Arc–Substrate Heat Transfer in AISI 1018 for Additive Manufacturing","authors":"Gaurab Neupane,&nbsp;Ozan Ç. Özdemir,&nbsp;Mohammad E. Taslim","doi":"10.1007/s11665-026-14695-0","DOIUrl":"10.1007/s11665-026-14695-0","url":null,"abstract":"<div><p>Despite the growing use of plasma transferred arc (PTA) in directed energy deposition, the coupled multiphysics mechanisms governing the process, particularly in stationary configurations, remain poorly understood, limiting the ability to predict and optimize melt-pool formation and arc behavior. Existing studies have modeled these phenomena separately, thereby neglecting their strong coupling during transient melt-pool evolution. Furthermore, no prior study has examined PTA applied to AISI 1018 low-carbon steel in a stationary configuration. This study addresses that gap by developing a three-dimensional, transient, unified computational fluid dynamics (CFD) model that integrates the hydrodynamic, heat transfer, and electromagnetic equations. This unified framework describes electro-thermal energy conversion, electromagnetic effects, heat transfer, gas–liquid two-phase flow, and solid–liquid phase change in stationary PTA-based additive manufacturing. Interface tracking between the plasma arc and the molten substrate is captured using the Volume of Fluid method, and solid–liquid phase change is handled through an enthalpy-porosity method. At 110A, the transient temperature field, arc velocity, melt-pool geometry, electric potential, and current density distributions are predicted throughout the process. Results reveal that a high potential drop and current density near the electrode tip result in a peak arc temperature of approximately 22,000 K and an axial jet velocity approaching 380 m/s, a few millimeters downstream of the nozzle exit. A comparative study of laminar and turbulent (standard k–ε) flow regimes reveals that the turbulent model predicts approximately 7.3% higher net heat input to the substrate, resulting in earlier melt-pool initiation. Experiments are conducted using stationary PTA configuration on AISI 1018 low-carbon steel. Metallographic analysis reveals a well-defined fusion zone and graded heat-affected zones. The fusion zone geometry predicted by the numerical model generally agrees with metallographic measurements, with a normalized root-mean-square error of approximately 9%.</p></div>","PeriodicalId":644,"journal":{"name":"Journal of Materials Engineering and Performance","volume":"35 Focus—Space","pages":"38471 - 38486"},"PeriodicalIF":2.6,"publicationDate":"2026-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s11665-026-14695-0.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149214618","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}