steel research international最新文献_第7页

Comparison Study of the Effect of MgO, MgO-CaO, MgO-Al2O3-C, and MgO-C Refractories on Cleanliness of a SiMn-Killed Steel MgO、MgO- cao、MgO- al2o3 - c和MgO- c耐火材料对simn -钢洁净度影响的比较研究

IF 2.5 3区材料科学

steel research international Pub Date : 2025-02-12 DOI: 10.1002/srin.202400788

Yujie Cheng, Shengchao Duan, Lifeng Zhang

{"title":"Comparison Study of the Effect of MgO, MgO-CaO, MgO-Al2O3-C, and MgO-C Refractories on Cleanliness of a SiMn-Killed Steel","authors":"Yujie Cheng, Shengchao Duan, Lifeng Zhang","doi":"10.1002/srin.202400788","DOIUrl":"https://doi.org/10.1002/srin.202400788","url":null,"abstract":"The effects of four kinds of industrial MgO-based refractories (MgO, MgO-CaO, MgO-Al2O3-C, and MgO-C) on the refractory/steel interfacial layer and inclusions in SiMn-killed steel are investigated through laboratory experiments and thermodynamic calculations. After 60 min of contact, the penetration of the molten SiMn-killed steel into the MgO, MgO-CaO, and MgO-Al2O3-C refractories is minimal. In the MgO-C refractory, a penetration depth of 1 mm is observed along grain boundaries. For MgO and MgO-C refractories, a distinct interfacial layer is hardly found. The MgO-CaO refractory produces an ≈20 μm thick CaO-SiO2-MgO interfacial layer, while the MgO-Al2O3-C refractory produces an ≈30 μm thick MgO-Al2O3-SiO2 interfacial layer. Regarding the experiments involving the MgO and MgO-CaO refractories, the content of T.Mg and T.Al in the steel shows minimal variation. Consequently, the composition of inclusions remains largely unchanged. MgO-Al2O3-C and MgO-C refractories significantly influenced the chemical reaction. The T.Mg content in the steel increases due to the presence of graphite phase in the refractory, and the T.Al content in the steel rises due to the dissolution of Al and Al2O3 particles from the refractories. Inclusions in the steel are transformed from the initial SiO2-MnO type to spinel inclusions.","PeriodicalId":21929,"journal":{"name":"steel research international","volume":"96 9","pages":"535-555"},"PeriodicalIF":2.5,"publicationDate":"2025-02-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145038014","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A Numerical Study on Hydrogen Reduction of Iron Oxide Pellets in a Shaft Furnace with Internal Retrieval of Thermal Energy 热能量内回收竖炉氧化铁球团氢还原的数值研究

IF 2.5 3区材料科学

steel research international Pub Date : 2025-02-12 DOI: 10.1002/srin.202401022

Lei Shao, Chenxi Zhao, Zongshu Zou, Henrik Saxén

{"title":"A Numerical Study on Hydrogen Reduction of Iron Oxide Pellets in a Shaft Furnace with Internal Retrieval of Thermal Energy","authors":"Lei Shao, Chenxi Zhao, Zongshu Zou, Henrik Saxén","doi":"10.1002/srin.202401022","DOIUrl":"https://doi.org/10.1002/srin.202401022","url":null,"abstract":"\u0000In the current study, the hydrogen shaft furnace (HSF) process with a special focus on internal retrieval of thermal energy via injecting room-temperature hydrogen (H2) from the furnace bottom is investigated. A validated 2D computational fluid dynamics model is employed to clarify how and to which extent the flow rate of bottom-injected H2 affects the thermochemical state and overall performance indicators of the HSF. In the results, it is indicated that the thermal energy retrieved by adopting the bottom injection operation can well compensate for the reduction in the total sensible heat of feed H2 under the conditions considered. Therefore, the furnace shows a better overall performance because the system requires less total supply of sensible heat while achieving a higher solid outlet reduction degree compared to a reference scenario with no bottom injection. Since the central gas flow is enhanced and local species transport of H2 is facilitated, the radial uniformity of solid reduction degree is also improved effectively. Moreover, the fluidization factor is well below unity, indicating no substantial particle fluidization will take place within the furnace incorporating the operation of bottom injection. In these findings, the potential of internal thermal energy retrieval in achieving a more suitable and efficient HSF process is highlighted.","PeriodicalId":21929,"journal":{"name":"steel research international","volume":"96 9","pages":"526-534"},"PeriodicalIF":2.5,"publicationDate":"2025-02-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145038011","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Drilling Performance and Surface Integrity of Hardened 42CrMo Steel in Clean Ultrasonic Vibration Hybrid Drilling Process 淬硬42CrMo钢清洁超声振动复合钻孔工艺的钻孔性能及表面完整性

IF 2.5 3区材料科学

steel research international Pub Date : 2025-02-11 DOI: 10.1002/srin.202400928

Wei Li, Guangming Zheng, Xiuli Jiang, Jinhao Ma, Xiang Cheng, Enzhao Cui, Xianhai Yang

{"title":"Drilling Performance and Surface Integrity of Hardened 42CrMo Steel in Clean Ultrasonic Vibration Hybrid Drilling Process","authors":"Wei Li, Guangming Zheng, Xiuli Jiang, Jinhao Ma, Xiang Cheng, Enzhao Cui, Xianhai Yang","doi":"10.1002/srin.202400928","DOIUrl":"https://doi.org/10.1002/srin.202400928","url":null,"abstract":"42CrMo steel has high strength, good toughness, and other excellent mechanical properties, making it the preferred material for gear, drive shaft, and other key components. However, after heat treatment of such materials, there will still be serious machining problems during the drilling process. Herein, the clean ultrasonic vibration hybrid drilling process, which combines ultrasonic vibration technology with clean cutting technology (using media such as dry, liquid nitrogen (LN2), cold air, and minimum quantity lubrication (MQL)), is used to investigate the drilling performance and surface integrity of 42CrMo steel. The results show that both cutting force and cutting temperature are reduced under low temperature and MQL conditions compared to dry conditions. At the same time, a notable extension of tool life is obtained under these drilling conditions. MQL demonstrates effective cooling and lubrication properties, enhancing the chip-breaking ability of ultrasonic vibration. In comparison to ultrasonic-assisted drilling (UAD) (dry) conditions, the surface roughness under UAD (MQL) conditions is decreased by 45%, while the maximum microhardness is increased by 13%. The drilling accuracy is significantly improved. Consequently, UAD (MQL) can remarkably improve the hard drilling performance and surface integrity of 42CrMo steel.","PeriodicalId":21929,"journal":{"name":"steel research international","volume":"96 10","pages":"135-147"},"PeriodicalIF":2.5,"publicationDate":"2025-02-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145196729","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Optimization of Eutectic Carbide Inhomogeneity in M42 High-Speed Steel through Machine Learning and Finite-Element Modeling 基于机器学习和有限元建模的M42高速钢共晶碳化物非均匀性优化

IF 2.5 3区材料科学

steel research international Pub Date : 2025-02-11 DOI: 10.1002/srin.202400860

Qiangqiang Yuan, Haiqing Yin, Yongwei Wang, Ruixia Sun, Zheqi Qiao, Cong Zhang, Ruijie Zhang, Dil Faraz Khan, Dong Li, Jingbin Liang, Xuanhui Qu

{"title":"Optimization of Eutectic Carbide Inhomogeneity in M42 High-Speed Steel through Machine Learning and Finite-Element Modeling","authors":"Qiangqiang Yuan, Haiqing Yin, Yongwei Wang, Ruixia Sun, Zheqi Qiao, Cong Zhang, Ruijie Zhang, Dil Faraz Khan, Dong Li, Jingbin Liang, Xuanhui Qu","doi":"10.1002/srin.202400860","DOIUrl":"https://doi.org/10.1002/srin.202400860","url":null,"abstract":"The optimization of forging processes in M42 high-speed steel is crucial for enhancing its microstructure and mechanical properties, particularly in reducing eutectic carbide inhomogeneity. In this study, machine learning (ML) is integrated with finite-element modeling (FEM) to address the challenges of process parameter optimization in large-sized ingots. The random forest algorithm is employed to predict the inhomogeneity of eutectic carbides using strain variables derived from FEM simulations as input features. The optimized process, validated through experimental analysis, demonstrates a significant improvement in carbide fragmentation, leading to a more uniform distribution of fine precipitates. The optimized M42 steel exhibits superior mechanical properties, with yield and compressive strengths increasing by ≈115 MPa and 305 MPa compared to the prior forging process. In the results, the efficacy of ML-driven optimization is underscored in achieving a refined microstructure and enhanced material performance, offering a promising approach for industrial applications of high-speed steel.","PeriodicalId":21929,"journal":{"name":"steel research international","volume":"96 9","pages":"380-396"},"PeriodicalIF":2.5,"publicationDate":"2025-02-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145037864","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Increased Crack Resistance to Enhance Toughness in 20Si2MnCrNi Steel via Isothermal Bainite Formation 通过等温贝氏体形成提高20Si2MnCrNi钢的抗裂性以增强韧性

IF 2.5 3区材料科学

steel research international Pub Date : 2025-02-10 DOI: 10.1002/srin.202400974

Xinyu Cai, Yuan Hou, Xiufeng Fan, Zhongwang Wu, Zhanyong Gao

引用次数: 0

Utilization of Non-Metallic Inclusion to Induce Intragranular Acicular Ferrite Formation Contributing to “Oxide Metallurgy”: Effect of Ti/Al Content on the Microstructure Evolution 利用非金属夹杂物诱导晶内针状铁素体形成促进“氧化物冶金”：Ti/Al含量对组织演变的影响

IF 2.5 3区材料科学

steel research international Pub Date : 2025-02-10 DOI: 10.1002/srin.202400360

Chen Cai, Wangzhong Mu

{"title":"Utilization of Non-Metallic Inclusion to Induce Intragranular Acicular Ferrite Formation Contributing to “Oxide Metallurgy”: Effect of Ti/Al Content on the Microstructure Evolution","authors":"Chen Cai, Wangzhong Mu","doi":"10.1002/srin.202400360","DOIUrl":"https://doi.org/10.1002/srin.202400360","url":null,"abstract":"Non-metallic inclusion is generally aimed to be removed during the refining process of steel production. The steelmakers always intend to produce clean steel to optimize the final product properties. However, the fine size inclusion is hard to remove completely; alternatively, it could be served as the nucleation site to induce the formation of intragranular acicular ferrite (IAF). This is an optimal microstructure with the “interlock” morphology and has been reported to be able to improve mechanical property, e.g., low-temperature impact toughness, according to the concept of “oxide metallurgy.” In this work, the low-alloy steels with different amounts of Ti and Al contents are prepared, and the inclusion characteristics (i.e., composition, size, distribution, etc.) are quantitatively investigated. Furthermore, high-temperature confocal laser scanning microscopy is applied to observe the IAF formation in situ with controlled isothermal holding and cooling conditions. The effect of nature of inclusions on IAF formation is investigated in the proposed steels. Subsequently, the theoretical model according to classical nucleation theory is utilized to evaluate the capability of different kinds of inclusions to induce IAF. Last but not least, the microstructure features in different steels are also investigated.","PeriodicalId":21929,"journal":{"name":"steel research international","volume":"96 8","pages":""},"PeriodicalIF":2.5,"publicationDate":"2025-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/srin.202400360","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144881244","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Study on the Microstructure, Properties, and Strengthening Mechanisms of Hot-Stamped Steel Produced by Multi-Mode Continuous Casting and Rolling Production 多模连铸连轧热冲压钢的组织、性能及强化机理研究

IF 2.5 3区材料科学

steel research international Pub Date : 2025-02-10 DOI: 10.1002/srin.202400930

Pengcheng Wang, Hongzhou Lu, Jiangtao Liang, Wenjun Wang, Baoliang Xiao, Zhengzhi Zhao

{"title":"Study on the Microstructure, Properties, and Strengthening Mechanisms of Hot-Stamped Steel Produced by Multi-Mode Continuous Casting and Rolling Production","authors":"Pengcheng Wang, Hongzhou Lu, Jiangtao Liang, Wenjun Wang, Baoliang Xiao, Zhengzhi Zhao","doi":"10.1002/srin.202400930","DOIUrl":"https://doi.org/10.1002/srin.202400930","url":null,"abstract":"In response to the growing demand for high-performance automotive materials, the multi-mode continuous casting and rolling (MCCR) process presents a promising solution to enhance production efficiency while reducing environmental impact. This study investigates the effects of three cooling methods—water quenching (WQ), gas quenching, and oil quenching—on the microstructure, mechanical properties, and strengthening mechanisms of hot-stamped MCCR steel by scanning electron microscopy, electron backscatter diffraction, and transmission electron microscopy. The findings indicate that higher cooling rates significantly increase both yield and tensile strengths while preserving elongation, with WQ conditions yielding optimal mechanical properties, achieving a yield strength of 1207 MPa and tensile strength of 1902 MPa. Additionally, higher cooling rates suppress auto-tempering, leading to greater dislocation density, intensified lattice distortion, and enhanced residual stress. These structural transformations are critical in determining grain boundary characteristics; higher cooling rates increase martensitic variant selection, reduce the proportion of high-angle grain boundaries (HAGBs), yet maintain the highest HAGB density in WQ conditions due to the refinement of packets and blocks. Quantitative assessments reveal that dislocation strengthening primarily contributes to yield strength variations at lower cooling rates, while dislocation and grain refinement strengthening mechanisms jointly govern yield strength at higher cooling rates.","PeriodicalId":21929,"journal":{"name":"steel research international","volume":"96 9","pages":"489-501"},"PeriodicalIF":2.5,"publicationDate":"2025-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145037915","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Dynamic Wetting Characteristics and Quantitative Analysis of Reaction Behavior between CaO–Al2O3-Based Mold Flux and Fe–Mn–Al–C Low-Density Steel cao - al2o3型助焊剂与Fe-Mn-Al-C低密度钢的动态润湿特性及反应行为定量分析

IF 2.5 3区材料科学

steel research international Pub Date : 2025-02-10 DOI: 10.1002/srin.202400935

Lei Fan, Songrong Li, Yujie Shi, Zineng Wang, Boqing Cao, Faxiang He, Tianpeng Qu, Deyong Wang, Xianglong Li, Shaoyan Hu, Dong Hou, Zhixiao Zhang, Zhenghong Yang

{"title":"Dynamic Wetting Characteristics and Quantitative Analysis of Reaction Behavior between CaO–Al2O3-Based Mold Flux and Fe–Mn–Al–C Low-Density Steel","authors":"Lei Fan, Songrong Li, Yujie Shi, Zineng Wang, Boqing Cao, Faxiang He, Tianpeng Qu, Deyong Wang, Xianglong Li, Shaoyan Hu, Dong Hou, Zhixiao Zhang, Zhenghong Yang","doi":"10.1002/srin.202400935","DOIUrl":"https://doi.org/10.1002/srin.202400935","url":null,"abstract":"To design a low-reactivity mold flux that met the requirements for continuous casting of Fe–Mn–Al–C low-density steel, the reaction behavior between CaO–Al2O3-based mold flux and low-density steel is quantitatively analyzed. Based on this, the dynamic wetting characteristics between the mold flux and low-density steel are further characterized during the steel-slag reaction process. The results show that when the reaction time is within 20 min, the chemical reactions between [Al], [Mn] in the steel and (B2O3) in the mold flux mainly occur. When the reaction time increases from 20 to 30 min, the chemical reactions between [Al] and (B2O3), (SiO2) are dominant. The reaction degree is quantitatively characterized by mass balance calculation. The changes in the activity of components in mold flux and molten steel are analyzed theoretically. Moreover, with the increase in reaction time, the initial temperature of the rapid decrease of the contact angle gradually increases from 1363 to 1423, 1463, and 1493 K, respectively. With the increase in reaction time, the adhesion work of mold fluxes decreases first and then increases, but its maximum value is lower than 670.832 mJ m−2. This work provides theoretical guidance for the design and development of a low-reactivity mold flux.","PeriodicalId":21929,"journal":{"name":"steel research international","volume":"96 9","pages":"502-513"},"PeriodicalIF":2.5,"publicationDate":"2025-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145037860","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Essential Parameters for Optimizing Conical Journal-Bearing Performance 优化锥形轴颈轴承性能的基本参数

IF 2.5 3区材料科学

steel research international Pub Date : 2025-02-10 DOI: 10.1002/srin.202400751

Prasad D. Kulkarni, Vikas M. Phalle, Sanjay R. Pawar, Vishwadeep Handikherkar

{"title":"Essential Parameters for Optimizing Conical Journal-Bearing Performance","authors":"Prasad D. Kulkarni, Vikas M. Phalle, Sanjay R. Pawar, Vishwadeep Handikherkar","doi":"10.1002/srin.202400751","DOIUrl":"https://doi.org/10.1002/srin.202400751","url":null,"abstract":"A conical journal bearing (CJB) is a type of bearing with a tapered, conical shape that supports a rotating shaft, providing both radial and axial support. Its design allows for better load distribution and alignment compared to cylindrical bearings, making it suitable for specific applications where combined loads are present. Numerous factors, including lubrication, load capacity, bearing material, operating speed, clearance, and friction, affect the way CJBs work. These factors determine the efficiency, durability, and overall functionality of the bearing under different operational conditions. Finite element analysis (FEA) helps evaluate CJB performance by simulating stress and strain distributions, thermal behavior, and deformation under various loads. It also models lubrication flow, providing insights into how lubrication quality and distribution impact performance. This comprehensive analysis aids in optimizing bearing design and predicting failure points. The results of FEA in evaluating CJB performance reveal detailed stress and strain distributions, identify potential failure points, and predict thermal behavior under various load conditions. FEA also provides insights into deformation and lubrication flow, helping to optimize bearing design for improved load capacity, reduced friction, and enhanced durability. These findings enable engineers to make data-driven decisions to enhance bearing performance and reliability.","PeriodicalId":21929,"journal":{"name":"steel research international","volume":"96 9","pages":"13-25"},"PeriodicalIF":2.5,"publicationDate":"2025-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145037558","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Numerical Simulation of Fluid Flow and Initial Solidification in Slab Continuous Casting Mold with FC Mold G3 基于FC Mold G3的板坯连铸结晶器内流体流动及初凝固数值模拟

IF 2.5 3区材料科学

steel research international Pub Date : 2025-02-10 DOI: 10.1002/srin.202401027

Chunxin Wei, Gaolin Lv, Sen Luo, Bingzhi Ren, Xiaohua Wang, Weiling Wang, Miaoyong Zhu

{"title":"Numerical Simulation of Fluid Flow and Initial Solidification in Slab Continuous Casting Mold with FC Mold G3","authors":"Chunxin Wei, Gaolin Lv, Sen Luo, Bingzhi Ren, Xiaohua Wang, Weiling Wang, Miaoyong Zhu","doi":"10.1002/srin.202401027","DOIUrl":"https://doi.org/10.1002/srin.202401027","url":null,"abstract":"With the increasing demand for high-quality continuous casting slab, electromagnetic devices are widely used to control the flow field in the mold. The new generation electromagnetic device FC Mold G3 with the combined function of electromagnetic braking (EMBr) and electromagnetic stirring (EMS) has received extensive attention. Herein, a 3D multiphysics numerical model coupling the electromagnetic, turbulence, heat transfer in the continuously cast slab mold with the FC Mold G3 is established, and the effects of different electromagnetic flow control methods of the FC Mold G3 on the flow and initial solidification behavior in the mold are investigated. The simulation results indicate that the velocity and temperature distribution at the top surface are more uniform when the EMS current is 150 A, but it does not improve the uniformity of the solidified shell. The initial solidified shell growth becomes more uniform after the EMBr is applied, but the local velocity of the steel–slag interface increases. When the current intensities of EMS and EMBr of FC Mold G3 are, respectively, 150 and 600 A, the velocity near the meniscus and the uniformity of the solidified shell become more reasonable and the impact depth is suppressed.","PeriodicalId":21929,"journal":{"name":"steel research international","volume":"96 9","pages":"514-525"},"PeriodicalIF":2.5,"publicationDate":"2025-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145037916","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0