Acta Metallurgica Sinica-English Letters最新文献_第5页

A Novel Multiphase Stainless Steel with Ultra-Low Yield Ratio and High Ductility 一种具有超低屈服比和高延展性的新型多相不锈钢

IF 2.9 2区材料科学

Acta Metallurgica Sinica-English Letters Pub Date : 2024-06-25 DOI: 10.1007/s40195-024-01733-w

Menghao Liu, Cuiwei Du, Yuewu Li, Xiaogang Li

引用次数: 0

3D Graphene Nanosheets Crosslinked Core–Shell FeS2@N, S Co-Doped Porous Carbon for Improved Lithium/Sodium Storage Performance 三维石墨烯纳米片交联核壳 FeS2@N、S 共掺多孔碳以提高锂/钠存储性能

IF 2.9 2区材料科学

Acta Metallurgica Sinica-English Letters Pub Date : 2024-06-20 DOI: 10.1007/s40195-024-01735-8

Liang Chen, Lan-Yun Yang, Li-Ying Hu, Xu Liu, Chen-Xi Xu, Ying Liu, Wei Wang, Wen-Yuan Xu, Zhao-Hui Hou

{"title":"3D Graphene Nanosheets Crosslinked Core–Shell FeS2@N, S Co-Doped Porous Carbon for Improved Lithium/Sodium Storage Performance","authors":"Liang Chen, Lan-Yun Yang, Li-Ying Hu, Xu Liu, Chen-Xi Xu, Ying Liu, Wei Wang, Wen-Yuan Xu, Zhao-Hui Hou","doi":"10.1007/s40195-024-01735-8","DOIUrl":"10.1007/s40195-024-01735-8","url":null,"abstract":"<div>Transition metal sulfides (TMS) hold great promise as anode materials for Li+/Na+ storage. However, their practical application still faces several challenges, such as inadequate electrical conductivity, substantial volume changes and a propensity for agglomeration. To tackle these challenges, a 3D composite structure composed of graphene nanosheets crosslinked core−shell FeS2@N, S co−doped porous carbon (FeS2@NSC/GNs) is created by combining self−template polymerization with the graphene encapsulation technique. Systematic characterization and analysis demonstrate the effectiveness of the self−template polymerization strategy in generating a porous core−shell structure, which facilitates the uniform dispersion and optimal contact of the FeS2 core within the carbon shell. Concurrently, the integration of graphene, alongside the porous carbon shell, introduces a sophisticated dual−protection mechanism against volume expansion and undesirable FeS2 aggregation. Furthermore, the resulting 3D architecture enables efficient electron/ion transport and provides abundant sites for Li+/Na+ storage. Leveraging these inherent benefits, the FeS2@NSC/GNs composite exhibits significantly improved lithium/sodium storage performance in comparison to the counterparts. Evidently, our proposed approach offers valuable guidance for the construction of advanced anodes for lithium/sodium−ion batteries.</div>","PeriodicalId":457,"journal":{"name":"Acta Metallurgica Sinica-English Letters","volume":null,"pages":null},"PeriodicalIF":2.9,"publicationDate":"2024-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142412663","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Preparation of TiO2 Nano-Flower Coating on Ti Substrates with Good Physical Sterilization Effect and Biocompatibility 在钛基底上制备具有良好物理灭菌效果和生物相容性的 TiO2 纳米花涂层

IF 2.9 2区材料科学

Acta Metallurgica Sinica-English Letters Pub Date : 2024-06-20 DOI: 10.1007/s40195-024-01724-x

Ruoyu Di, Yonghua Sun, Runhua Yao, Sen Pei, Xiaohong Yao, Ruiqiang Hang

{"title":"Preparation of TiO2 Nano-Flower Coating on Ti Substrates with Good Physical Sterilization Effect and Biocompatibility","authors":"Ruoyu Di, Yonghua Sun, Runhua Yao, Sen Pei, Xiaohong Yao, Ruiqiang Hang","doi":"10.1007/s40195-024-01724-x","DOIUrl":"10.1007/s40195-024-01724-x","url":null,"abstract":"<div>We report a facile solution method to form titanium oxide (TiO2) nano-flower structure on the titanium (Ti) substrates for realizing good physical sterilization and biocompatibility. We first prepare TiO2 nanotubes (NT) with a diameter of about 80–100 nm and a length of about 5 μm on Ti substrates by anodization, which is utilized as precursor. Then, we employ immersion treatment in different concentrations of phosphoric acid solution at 75 °C for 5 h to realize the transformation from TiO2 NT to TiO2 nano-flower structure. In addition, we studied the effects of phosphoric acid concentration (1 wt%, 2.5 wt%, 5 wt% and 10 wt%) on the TiO2 nano-flower structure, and the antibacterial properties and biocompatibility of the TiO2 nano-flower structure. The results show that TiO2 nano-flower structure become larger and thicker with the increase in the phosphoric acid concentration, and the thickness of the coating can reach 6.88 μm. Meanwhile, the TiO2 nano-flower structure shows good physical sterilization effect, especially for the TiO2 nano-flower structure formed in 10 wt% H3PO4 solution, the antibacterial rate can reach 95%. In addition, the TiO2 nano-flower structure have no toxicity to the osteoblasts and support cell growth.</div>","PeriodicalId":457,"journal":{"name":"Acta Metallurgica Sinica-English Letters","volume":null,"pages":null},"PeriodicalIF":2.9,"publicationDate":"2024-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142412623","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Microstructure, Mechanical Properties and Corrosion Resistance of the Mo0.5V0.5NbTiZrx High-Entropy Alloys with Low Thermal Neutron Sections 具有低热中子截面的 Mo0.5V0.5NbTiZrx 高熵合金的显微结构、力学性能和耐腐蚀性能

IF 2.9 2区材料科学

Acta Metallurgica Sinica-English Letters Pub Date : 2024-06-20 DOI: 10.1007/s40195-024-01728-7

Chao Xiang, En-Hou Han, Zhiming Zhang, Huameng Fu, Haifeng Zhang, Jianqiu Wang, Guodong Hu

{"title":"Microstructure, Mechanical Properties and Corrosion Resistance of the Mo0.5V0.5NbTiZrx High-Entropy Alloys with Low Thermal Neutron Sections","authors":"Chao Xiang, En-Hou Han, Zhiming Zhang, Huameng Fu, Haifeng Zhang, Jianqiu Wang, Guodong Hu","doi":"10.1007/s40195-024-01728-7","DOIUrl":"10.1007/s40195-024-01728-7","url":null,"abstract":"<div>High-entropy alloys exhibit significant potential for application in the nuclear industry owing to their exceptional resistance to irradiation, excellent mechanical properties, and corrosion resistance. In this work, the Mo0.5V0.5NbTiZrx (x = 0–2.0) high-entropy alloys containing alloying elements with low thermal neutron absorption cross section were designed and prepared. The crystal structure, microstructure, mechanical properties and corrosion resistance of the studied alloys were investigated. All the alloys possess a body-centered cubic crystal structure, which is consistent with the CALPHAD (acronym of CALculation of PHAse Diagram) modeling results. The addition of Zr does not alter the crystal structure of the Mo0.5V0.5NbTiZrx alloys; however, it leads to an increase in the lattice constant as Zr content increases. The addition of Zr initially enhances the yield strength, but subsequently leads to a decline as the Zr content increases further. Specifically, the corrosion resistance of the Mo0.5V0.5NbTiZrx alloys in superheated steam at 400 °C and 10.3 MPa decreases with the increase of Zr content. The effect of Zr content on the phase formation, mechanical properties and corrosion resistance of the Mo0.5V0.5NbTiZrx high-entropy alloys are discussed. This study has successfully developed a novel Mo0.5V0.5NbTiZr0.25 high-entropy alloy, which demonstrates exceptional properties including high yield strength, excellent ductility, and superior anti-corrosion performance. The findings of this research have significant implications for the design of high-entropy alloys in nuclear applications.</div>","PeriodicalId":457,"journal":{"name":"Acta Metallurgica Sinica-English Letters","volume":null,"pages":null},"PeriodicalIF":2.9,"publicationDate":"2024-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142412617","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Intermetallic Compounds Formation in Dissimilar Friction Stir Welding of Mg/Cu Alloys 镁/铜合金异种摩擦搅拌焊接中金属间化合物的形成

IF 2.9 2区材料科学

Acta Metallurgica Sinica-English Letters Pub Date : 2024-06-13 DOI: 10.1007/s40195-024-01714-z

Xue Li, Qingzhen Zhao, Hao Su, Ji Chen, Chuansong Wu

引用次数: 0

Hot Deformation Behavior and Workability of a New Ni–W–Cr Superalloy for Molten Salt Reactors 熔盐反应堆用新型 Ni-W-Cr 超合金的热变形行为和可加工性

IF 2.9 2区材料科学

Acta Metallurgica Sinica-English Letters Pub Date : 2024-06-13 DOI: 10.1007/s40195-024-01701-4

Long Liu, Zijian Zhou, Jie Yu, Xinguang Wang, Chuanyong Cui, Rui Zhang, Yizhou Zhou, Xiaofeng Sun

{"title":"Hot Deformation Behavior and Workability of a New Ni–W–Cr Superalloy for Molten Salt Reactors","authors":"Long Liu, Zijian Zhou, Jie Yu, Xinguang Wang, Chuanyong Cui, Rui Zhang, Yizhou Zhou, Xiaofeng Sun","doi":"10.1007/s40195-024-01701-4","DOIUrl":"10.1007/s40195-024-01701-4","url":null,"abstract":"<div>The hot deformation behavior of a newly developed Ni–W–Cr superalloy for use in 800 °C molten salt reactors (MSRs) was looked into by isothermal compression tests in the temperature range of 1050–1200 °C with a strain rate of 0.001–1 s−1 under a true strain of 0.693. An Arrhenius-type model for the Ni–W–Cr superalloy was constructed by fitting the corrected flow stress data. In this model, the effect of dispersion of solid solution elements during thermal deformation on microstructure evolution was considered, as well as the effects of friction and adiabatic heating on the temperature and strain rate-dependent variation of flow stresses. The hot deformation activation energy of the Ni–W–Cr superalloy was 323 kJ/mol, which was less than that of the Hastelloy N alloy (currently used in MSRs). According to the rectified flow stress data, processing maps were created. In conjunction with the corresponding deformation microstructures, the flow instability domains of the Ni–W–Cr superalloy were determined to be 1050–1160 °C/0.03–1 s−1 and 1170–1200 °C/0.001–0.09 s−1. In these deformation conditions, a locally inhomogeneous microstructure was caused by flow—i.e., incomplete dynamic recrystallization and hot working parameters should avoid sliding into these domains. The ideal processing hot deformation domain for the Ni–W–Cr superalloy was determined to be 1170–1200 °C/0.6–1 s−1.</div>","PeriodicalId":457,"journal":{"name":"Acta Metallurgica Sinica-English Letters","volume":null,"pages":null},"PeriodicalIF":2.9,"publicationDate":"2024-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s40195-024-01701-4.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141347896","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Effects of Boron Addition on the Microstructure and Mechanical Properties of γ′-Strengthened Directionally Solidified CoNi-Base Superalloy 加硼对γ′-强化定向凝固 CoNi-Base 超合金微观结构和力学性能的影响

IF 2.9 2区材料科学

Acta Metallurgica Sinica-English Letters Pub Date : 2024-06-13 DOI: 10.1007/s40195-024-01715-y

Shasha Qu, Yingju Li, Bingyu Lu, Cuiping Wang, Yuansheng Yang

引用次数: 0

Enhanced Grain Refining Effect of Mg–Zr Master Alloy on Magnesium Alloys via a Synergistic Strategy Involving Heterogeneous Nucleation and Solute-Driven Growth Restriction 通过异质成核和溶质驱动的生长限制协同策略增强镁-Zr 母合金对镁合金的晶粒细化效果

IF 2.9 2区材料科学

Acta Metallurgica Sinica-English Letters Pub Date : 2024-06-06 DOI: 10.1007/s40195-024-01719-8

Gang Zeng, Hong Liu, Jing-Peng Xiong, Jian-Long Li, Yong Liu

{"title":"Enhanced Grain Refining Effect of Mg–Zr Master Alloy on Magnesium Alloys via a Synergistic Strategy Involving Heterogeneous Nucleation and Solute-Driven Growth Restriction","authors":"Gang Zeng, Hong Liu, Jing-Peng Xiong, Jian-Long Li, Yong Liu","doi":"10.1007/s40195-024-01719-8","DOIUrl":"10.1007/s40195-024-01719-8","url":null,"abstract":"<div>Zirconium (Zr) emerges as the most effective grain refiner for magnesium (Mg) alloys incorporating Zr. Typically, Zr is introduced in the form of an Mg–Zr master alloy. However, within Mg–Zr master alloys, Zr predominantly exists in a particle form, which tends to aggregate due to attractive van der Waals forces. The clustered Zr is prone to settling, thereby reducing its refining impact on Mg alloys. In this work, a combined pretreatment process for Mg–Zr master alloys was proposed, encompassing the introduction of a physical field to intervene the agglomeration of particle Zr and the employ of high-temperature dissolution and peritectic reactions to promote the solid solution of Zr. The results demonstrate that the particle Zr within the pretreated Mg–Zr master alloy is effectively dispersed and refined, and greater solute Zr levels can be achieved. The subsequent grain refinement ability was studied on a typical Mg–6Zn–0.6Zr (wt%) alloy. The outcome highlights that an improvement in the grain refinement efficacy (32.4%) of Mg–Zr master alloys was obtained with a holding time of 60 min. The pretreated Mg–Zr master alloy significantly augments the efficiency of grain refinement for Mg alloys through a synergistic strategy involving heterogeneous nucleation and solute-driven growth restriction. The crucial factor in achieving effective grain refinement of Zr in Mg alloys lies in regulating the presence and morphology of Zr in the Mg–Zr master alloy, distinguishing between particle Zr and solute Zr. This study introduces a novel method for developing more efficient Mg–Zr refiners.</div>","PeriodicalId":457,"journal":{"name":"Acta Metallurgica Sinica-English Letters","volume":null,"pages":null},"PeriodicalIF":2.9,"publicationDate":"2024-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141377277","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Microstructure and Mechanical Properties of Al2O3p/AZ91 Magnesium Matrix Laminated Material Adjusted by Freezing Temperature 受冷冻温度影响的 Al2O3p/AZ91 镁基质层压材料的微观结构和力学性能

IF 2.9 2区材料科学

Acta Metallurgica Sinica-English Letters Pub Date : 2024-06-06 DOI: 10.1007/s40195-024-01717-w

Ze-Xin Bai, Kun-Kun Deng, Ze-Qi Du, Kai-Bo Nie, Chao Xu, Quan-Xin Shi

{"title":"Microstructure and Mechanical Properties of Al2O3p/AZ91 Magnesium Matrix Laminated Material Adjusted by Freezing Temperature","authors":"Ze-Xin Bai, Kun-Kun Deng, Ze-Qi Du, Kai-Bo Nie, Chao Xu, Quan-Xin Shi","doi":"10.1007/s40195-024-01717-w","DOIUrl":"10.1007/s40195-024-01717-w","url":null,"abstract":"<div>The Al2O3 laminated preforms with different layers thickness were prepared by freezing casting in present work. Then, the Al2O3p/AZ91 magnesium matrix laminated materials were obtained by infiltrating the AZ91 alloy melt into the Al2O3 laminated preform based on pressure infiltration process. Subsequently, the influence of freezing temperature on the microstructure, mechanical properties and fracture behavior of magnesium-based laminates was investigated. The results indicated that with the decrease of freezing temperature, the thickness of Al2O3 layers decreases gradually, the number of layers increases obviously, and the interlayers spacing decreases. Accompanied with the decrease of interlayers spacing, the size of Mg17Al12 phase precipitated in the AZ91 alloy layers was refined, and the compression strength and strain were both improved obviously. The micro-cracks initiated in Al2O3 layers during loading process, while the AZ91 layers could effectively suppress the initiation and propagation of micro-cracks. Furthermore, the changing layers structure influenced by the decrease of freezing temperature had significant inhibiting effect on the initiation and propagation of micro-cracks, which endowed the Al2O3p/AZ91 magnesium matrix laminated materials with better strength and toughness. Notably, the best compression properties of Al2O3p/AZ91 magnesium matrix laminated materials could be obtained at the freezing temperature of − 50 °C, the compression strength and elastic modulus of which were the 160% and 250% of monolithic AZ91 alloy, respectively.</div>","PeriodicalId":457,"journal":{"name":"Acta Metallurgica Sinica-English Letters","volume":null,"pages":null},"PeriodicalIF":2.9,"publicationDate":"2024-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141552569","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Degradation Behavior of Zn–Cu Stents with Different Coatings in Sodium Chloride Solution 不同涂层的锌铜支架在氯化钠溶液中的降解行为

IF 2.9 2区材料科学

Acta Metallurgica Sinica-English Letters Pub Date : 2024-06-06 DOI: 10.1007/s40195-024-01721-0

Xingpeng Liao, Jialuo Huang, Zhilin Liu, Jingru Guo, Dajiang Zheng, Pengbo Chen, Fuyong Cao

引用次数: 0