Article
Nanoscience & Nanotechnology
Hong Ma, Guoliang Qin, Zongyu Dang, Shenquan Qu, Liang Chen, Peihao Geng
Summary: This study investigates the evolution of interfacial microstructure and its impact on the mechanical properties of Al alloy/stainless steel joints made by inertia friction welding with different surface roughness. The results show that preheat treatment promotes the growth of the bonding layer and improves the local interfacial bonding strength. However, the enlarged brittle peripheral region in the preheated joints leads to a slightly lower joint strength.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2022)
Article
Materials Science, Multidisciplinary
Jian Wang, Xiang Ling, Wentong Zhang, Xiaofeng Lu, Cheng Chen
Summary: The study on FSW joints of 3003 aluminum alloy to 304 stainless steel showed that optimal joints were obtained under specific conditions, with offset significantly affecting the microstructure of the joints, and decreasing rotational speed improving tensile properties and microhardness.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Article
Materials Science, Multidisciplinary
Chuan Xu, Xinjian Yuan
Summary: High frequency ultrasonic vibration was used for arc welding of MB3 Mg alloy to improve welding defects and microstructure issues. By optimizing experimental parameters, Mg alloy joints with favorable mechanical properties were obtained. However, excessive ultrasonic power could degrade tensile strength.
Article
Nanoscience & Nanotechnology
Reza Jabraeili, Hamid Reza Jafarian, Rasoul Khajeh, Nokeun Park, Yejin Kim, Akbar Heidarzadeh, Ali Reza Eivani
Summary: By adjusting the friction stir welding parameters, the optimal process conditions can be obtained, forming a sound, serrated interface and a composite-like structure in the stir zone. At this point, higher strength and ductility are achieved, with a fracture mode similar to a dimple.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2021)
Article
Materials Science, Multidisciplinary
Ting Zhang, Kuaishe Wang, Ke Qiao, Bing Wu, Qiang Liu, Peng Han, Wen Wang, Yuanyi Wang, Zhengyang Hao, Pengfei Zheng
Summary: In this study, QP980 steel and 6061 Al alloy are successfully welded by friction stir welding (FSW), and the microstructure and mechanical properties of joints are characterized. It is found that an IMC layer composed of Al3Fe, Al5Fe2, Al2Fe, and Al6Mn phases is generated at the weld interface. The interfacial bonding strength is enhanced by the low lattice mismatch between IMCs and matrix.
MATERIALS CHARACTERIZATION
(2023)
Article
Materials Science, Multidisciplinary
Huan Li, Changxin Zhang, Yihong Deng, Kang Zhou, Zenglei Ni, Fei Yan, Qianxi Liu
Summary: In this study, aluminum and steel dissimilar sound joints were fabricated using high-power ultrasonic welding, and the microstructure and mechanical properties of the joints were investigated. The formation mechanism of the joint was further understood through examination of macro and micro plastic deformation using finite element method. The results showed that increasing the welding duration resulted in a larger welding area and higher plastic strain in the aluminum side, leading to improved joint strength through intermetallic compound (IMC) formation.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Materials Science, Multidisciplinary
Z. W. Wang, M. Liu, H. Zhang, G. M. Xie, P. Xue, L. H. Wu, Z. Zhang, D. R. Ni, B. L. Xiao, Z. Y. Ma
Summary: This study compared the structure-property relationships of Q&P 1180 steel joints welded by laser welding, TIG welding, and friction stir welding. The results showed that laser welding and friction stir welding achieved excellent tensile strength comparable to the parent metal while maintaining material hardness, whereas TIG welding resulted in significant softening and strength loss.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Article
Chemistry, Physical
Robert Kosturek, Janusz Torzewski, Marcin Wachowski, Lucjan Sniezek
Summary: This study focused on the mechanical properties of AA7075-T651 alloy, investigating the influence of welding velocity and tool rotation speed on joint quality. The results showed that joints produced under optimal conditions exhibited high tensile strength and joint efficiency.
Article
Materials Science, Multidisciplinary
Yangfan Zou, Wenya Li, Yaxin Xu, Xiawei Yang, Qiang Chu, Zhikang Shen
Summary: The joints were successfully fabricated using refill friction stir spot welding (RFSSW) and were investigated for microstructure evolution, corrosion behavior, and mechanical properties. The stir zone (SZ) had refined and equiaxed grains, while rod-like precipitates were found in the base material (BM) of the lower plate. The hardness increased gradually from top to bottom, and the SZ showed excellent corrosion resistance.
MATERIALS CHARACTERIZATION
(2022)
Article
Nanoscience & Nanotechnology
A. Seshu Kumar, Sk. Abdul Khadeer, V. Rajinikanth, Santanu Pahari, B. Ravi Kumar
Summary: In this study, rotary friction weld joints were prepared between carbon steel and low alloy steel pipes, revealing distinct weld microstructure characteristics and differences in mechanical properties based on different configurations. The use of quench and temper treatment on the low alloy steel resulted in improved bond interface strength, attributed to a synergistic effect of grain size refinement and tempered martensite microstructure.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2021)
Article
Engineering, Industrial
Shulei Sun, Zijian Wang, Li Zhou, Kaikai Song, Xiaoguo Song
Summary: The microstructure evolution and tensile behavior of friction stir-welded joints for Fe50Mn30Co10Cr10 high entropy alloy have been investigated. Defect-free welds were obtained and significant grain refinement and phase transformation were observed. Multiple deformation mechanisms were observed in the thermomechanically affected zone. The microhardness of the joint depends on the grain size and the fraction of twins and HCP phase. The rotational speed of the friction stir welding affects the tensile properties.
JOURNAL OF MATERIALS PROCESSING TECHNOLOGY
(2023)
Article
Engineering, Manufacturing
Changqing Zhang, Guosheng Cui, Boyang Chen, Xiao Liu, Yu Shi, Ye Wang
Summary: The study found that adding a silver interlayer to the aluminum/steel interface in large diameter aluminum/steel continuous driven friction welding components can reduce friction torque, improve the mechanical properties of the joints, and reduce the thickness of the Fe-Al intermetallic compounds. The formation of Ag2Al and Ag3Al phases with better toughness in a certain region of the joint contributes to the improved strength and toughness.
JOURNAL OF MANUFACTURING PROCESSES
(2022)
Article
Nanoscience & Nanotechnology
Zongyu Dang, Guoliang Qin, Hong Ma
Summary: The study found that high-quality aluminum alloy/steel inertia friction welded joints can be achieved at appropriate welding parameters, avoiding internal cracks. The formation of the Al2Cu IMCs layer at the friction interface was mainly attributed to the accumulation of Al2Cu from the 2219 aluminum alloy base metal on the wavy surface of the steel, significantly promoting the growth of Al2Cu. However, cracks could easily occur in a thicker Al2Cu IMCs layer at high heat input, which seriously deteriorated the mechanical properties of joints.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2021)
Article
Materials Science, Multidisciplinary
Zhiwei Wang, Min Zhang, Cong Li, Fenglei Niu, Hao Zhang, Peng Xue, Dingrui Ni, Bolv Xiao, Zongyi Ma
Summary: In this study, the reliable welding of T91 heat-resistant steel to 316L stainless steel was improved through friction stir welding, resulting in a defect-free joint with a large bonding interface. The joint exhibited both mechanical mixing and metallurgical bonding at the bonding interface, and the material was renovated in the weld zone, leading to a high-strength welded joint comparable to the parent metal.
INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS
(2023)
Article
Automation & Control Systems
Wentao Hou, Yuquan Ding, Guoqiang Huang, Nazmul Huda, Luqman Hakim Ahmad Shah, Zhongyu Piao, Yifu Shen, Zhikang Shen, Adrian Gerlich
Summary: The study introduced eccentric motion by offsetting the pin from the tool shoulder in order to enhance material flow and grain refinement in the stir zone during friction stir welding of Al-Mg-Si aluminum alloy plates. The results showed that pin eccentricity had a positive effect on promoting material flow and grain refinement, as well as enhancing the toughness of the weld joint.
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2022)
Article
Nanoscience & Nanotechnology
Yuming Xie, Xiangchen Meng, Dongxin Mao, Yuexin Chang, Zhiwei Qin, Xiaotian Ma, Long Wan, Yongxian Huang
Summary: In this study, a deformation-driven modified high-alloy aluminum was proposed as an anode for primary aluminum-air batteries. The alloy exhibited homogeneous microstructures and suppressed self-corrosion, leading to improved power and energy densities of the batteries.
SCRIPTA MATERIALIA
(2022)
Article
Materials Science, Multidisciplinary
Ranzhuoluo Zang, Yuming Xie, Jinglin Liu, Xiangchen Meng, Yongxian Huang, Long Wan
Summary: A novel technique called deformation-driven metallurgy (DDM) was proposed to obtain high-quality tungsten-copper composites using severe plastic deformation. The technique improved the continuity of the tungsten-copper system by achieving a homogeneous distribution of ultrafine tungsten particles. The resulting DDM composites showed enhanced wear resistance and arc-erosion resistance, with increased density and hardness.
METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE
(2022)
Article
Metallurgy & Metallurgical Engineering
Huankun Deng, Yuming Xie, Xiangchen Meng, Huizi Chen, Ranzhuoluo Zang, Yuexin Chang, Xuan Li, Long Wan, Yongxian Huang
Summary: Through the use of the up-hard and down-soft configuration, light-weight dissimilar joints of Mg-Li alloy and Mg-Al-Zn alloy were successfully achieved. This technique converted the shortcomings of conventional joints into a more stable interlocking structure, suitable for applications in spacecrafts.
WELDING IN THE WORLD
(2022)
Article
Chemistry, Physical
Tifang Huang, Zeyu Zhang, Jinglin Liu, Sihao Chen, Yuming Xie, Xiangchen Meng, Yongxian Huang, Long Wan
Summary: Submerged friction stir welding (SFSW) can decrease the peak temperature and control the thermal gradient of the joint, leading to improvements in weld formation and reduction of intermetallic compounds (IMCs) layer thickness. Compared with conventional friction stir welding (FSW), the thermal accumulation during SFSW process inhibits IMCs formation and enables the formation of a strong mechanical interlocking structure, resulting in increased effective contact area and strength of the joint.
Article
Chemistry, Multidisciplinary
Yuming Xie, Xiangchen Meng, Yuexin Chang, Dongxin Mao, Zhiwei Qin, Long Wan, Yongxian Huang
Summary: In this study, a bottom-up strategy utilizing heteroatom microstructural modification is proposed to overcome the antagonism between strength and corrosion resistance in graphene-reinforced aluminum matrix composites. The deformation-driven metallurgy technique is used to produce Mg-alloyed fluorinated graphene structures, which can absorb corrosion products, form a dense protective layer, and suppress charge transfer. The results demonstrate excellent corrosion resistance and strength-ductility balance.
Article
Materials Science, Multidisciplinary
Yan Cui, Chong Li, Zenglou Li, Xiaojie Yao, Wenbo Hao, Songling Xing, Yuming Xie, Xiangchen Meng, Long Wan, Yongxian Huang
Summary: Deformation-driven processing was utilized to prepare wear-resistant carbon nanotube reinforced poly-ether-ether-ketone (PEEK) composites. Severe plastic deformation contributed to the homogeneous dispersion of reinforcements, and low frictional heat input ensured the structural integrity of carbon nanotubes.
Article
Chemistry, Physical
Zhiwei Qin, Yuming Xie, Xiangchen Meng, Delai Qian, Dongxin Mao, Xiaotian Ma, Cheng Shan, Jialin Chen, Long Wan, Yongxian Huang
Summary: This study proposes a green and sustainable method for recycling spent solid-state lithium batteries, with a focus on recovering the solid-state electrolyte. The fine particles of the electrolyte recovered through deformation-driven re-sintering show sufficient sintering activity and promote lithium absorption. The severe deformation accelerates phase transformation and ensures the formation of a homogeneous distribution of lithium ions. The solid-state lithium batteries assembled with the recycled electrolyte exhibit superior cycling performance.
ENERGY STORAGE MATERIALS
(2022)
Article
Chemistry, Physical
Yuming Xie, Xiangchen Meng, Zhiwei Qin, Yuexin Chang, Dongxin Mao, Long Wan, Yongxian Huang
Summary: Reversible passivation can prevent self-corrosion in primary aluminum-air cells, and carbonaceous nanomaterial-reinforced aluminum matrix composites have been developed as anodes for this purpose. These composites achieve a considerable increase in effective energy density and possess high energy utilization and discharge efficiency.
ENERGY STORAGE MATERIALS
(2022)
Article
Nanoscience & Nanotechnology
Zhiwei Qin, Yuming Xie, Xiangchen Meng, Delai Qian, Zhen Zheng, Long Wan, Yongxian Huang
Summary: This study investigates the distribution of Ta-doped LLZTO in solid-state lithium batteries through grain boundary engineering. The distribution of the Ta element is regulated, and the density of the material is enhanced. In addition, the growth of lithium dendrites is inhibited, leading to stable cycling performance.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Engineering, Environmental
Zhiwei Qin, Yuming Xie, Xiangchen Meng, Delai Qian, Cheng Shan, Dongxin Mao, Gang He, Zhen Zheng, Long Wan, Yongxian Huang
Summary: This study proposes a high-speed mechanical polishing method to address the interfacial issues caused by Li2CO3 impurities in solid-state lithium batteries. The polishing improves the contact of the Li/LLZTO interface, reduces interfacial resistance, and enhances Li-ion transport. Li cells assembled with polished LLZTO demonstrate good cycling stability, while SSLBs with LiFePO4 cathode exhibit superior discharge capacity and cycling performance.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Physical
Cheng Shan, Zhiwei Qin, Yuming Xie, Xiangchen Meng, Jialin Chen, Yuexin Chang, Ranzhuoluo Zang, Long Wan, Yongxian Huang
Summary: Proposed a novel strategy for fabricating current collectors (CCs) in anode-free Li metal batteries (AFLMBs) using multi-walled carbon nanotubes reinforced Cu matrix composite enabled by deformation-driven metallurgy (DDM) technology. The Cu-CNTs with high lithiophilicity due to the presence of broken CNTs and grain boundaries provide desirable nucleation sites for uniform Li deposition. The fabricated CCs exhibit advanced cycling stability and capacity retention, demonstrating their potential for future applications of AFLMBs.
Article
Materials Science, Multidisciplinary
Yihan Gao, Jinglin Liu, Qi Wen, Boguang Zhang, Yongxian Huang, Long Wan
Summary: A novel welding tool with a double pin structure was proposed to overcome the challenges of forming deep and narrow welds. Experiments demonstrated that this tool could achieve defect-free joints for four common aluminum alloys with a depth to width ratio of 0.59-0.67. The joint center exhibited an impact slow flow zone due to the material flow direction difference between the upper pin and the pin effect. The maximum ultimate tensile strength of the 7075-T6 aluminum alloy joint reached 450.38 MPa, which was 85.8% of the base material. Fracture analysis revealed local blockage in the stirring zone and weld nugget zone, leading to joint failure.
MATERIALS CHARACTERIZATION
(2023)
Article
Materials Science, Multidisciplinary
Dongxin Mao, Xiangchen Meng, Yuming Xie, Yuexin Chang, Zhiwei Qin, Shuangming Xu, Long Wan, Yongxian Huang
Summary: An ingenious nano-micro SiC-reinforced Al matrix composite (AMC) with heterogeneous grain structures was designed via a novel deformation-driven metallurgy method. By tailoring the accumulated geometrically necessary dislocations and intragranularly dispersed SiC particles based on the principle of back stress amelioration, a dynamic balance between strength and ductility was maintained. The designed composite exhibited a high ultimate tensile strength of 324 MPa and a uniform elongation of 12.9%, with a strength that was 181% higher than that of the ductile SiC10(mu p)/Al composite. This research provides a new strategy to promote strength-ductility synergy by modifying back stress.
SCIENCE CHINA-MATERIALS
(2023)
Article
Materials Science, Ceramics
Zhiwei Qin, Yuming Xie, Xiangchen Meng, Cheng Shan, Gang He, Delai Qian, Dongxin Mao, Long Wan, Yongxian Huang
Summary: Ta-doped solid-state electrolyte (SSE) is used to investigate Li vacancy regulation and densification mechanism. Thermodynamic analysis reveals an optimal vacancy concentration corresponding to the lowest free energy in the Ta-doped SSE system. Low system free energy promotes grain growth and fusion, consistent with microstructure evolution. At 0.5 of Ta doping, the relative density and Li-ion conductivity reach 96.1% and 6.47 x 10(-4) S cm(-1) respectively. Symmetric Li battery exhibits stable cycling at a high current density and full battery with LiFePO4 cathode maintains high Coulombic efficiency after cycling. This work provides theoretical insights and significant progress towards practical applications.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2023)
Article
Chemistry, Applied
Yongxian Huang, Zhiwei Qin, Cheng Shan, Yuming Xie, Xiangchen Meng, Delai Qian, Gang He, Dongxin Mao, Long Wan
Summary: Solid-state lithium batteries (SSLBs) are safe and energy-dense alternatives to next-generation energy storage systems. This study proposes a solid-state recycling strategy to achieve green recycling of spent SSLBs by recycling the crucial component solid-state electrolytes (SSEs). The recycled SSEs show improved sintering activity and high packing density, leading to high-performance SSLBs for large-scale industrial application.
JOURNAL OF ENERGY CHEMISTRY
(2023)
