Article
Materials Science, Multidisciplinary
Jiang Yang, Honggang Dong, Yueqing Xia, Peng Li, Xiaohu Hao, Yaqiang Wang, Wei Wu, Baosen Wang
Summary: The effects of NiCrMo-3 and 307Si filler wires on the microstructure and mechanical properties of medium Mn steel joints were investigated. The joints with NiCrMo-3 filler wire exhibited higher tensile strength, increased microhardness, and reduced impact toughness compared to those with 307Si filler wire. The worst impact toughness was observed around the fusion line in both welded joints.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2021)
Article
Engineering, Manufacturing
Jiang Yang, Honggang Dong, Yueqing Xia, Peng Li, Wei Wu, Baosen Wang
Summary: The study investigated the microstructure and embrittlement mechanism in the coarse-grain heat-affected zone (CGHAZ) of welded joint. The results showed that carbon element segregated and nanosized carbides precipitated in CGHAZ, causing a decrease in impact toughness in this region.
JOURNAL OF MANUFACTURING PROCESSES
(2021)
Article
Optics
A. R. Pavan, B. Arivazhagan, N. Vasudeva, T. N. Prasanthi, C. Sudha
Summary: Austenitic stainless steels are ideal for nuclear power plant components due to their excellent creep strength, desirable mechanical properties, and corrosion resistance. The microstructure and mechanical behavior of weld joints are influenced by the weld thermal cycle. This research explores the microstructure and mechanical behavior of 316LN stainless steel joints welded using a hybrid laser + Metal Inert Gas (HLM) method. The depth of penetration was significantly affected by the interaction between the laser and the arc, leading to adjustments in the laser-arc source position and arc current to achieve deep penetration. The mechanical properties of the HLM weld joint were primarily influenced by the 8-ferrite content, secondary dendrite arm spacing, and microsegregation variation.
OPTICS AND LASER TECHNOLOGY
(2023)
Article
Materials Science, Multidisciplinary
Mengmeng Yang, Jiaying Zhou, Haijun Huang, Shuo Cao, Qing-Miao Hu, Wei Li, Qingjun Chen, Yanxin Qiao, Hao Wang
Summary: By using high-throughput first-principles calculations, the segregation capacity of fifteen widely used metallic alloying elements at the grain boundary in low alloy ferritic steel was systematically investigated. The impact of strain energy minimization on segregation was found to be comparable to that of chemical energy minimization, especially for large alloying atoms. The findings suggest that the segregation of large alloy atoms on the grain boundaries can be predicted by their atomic volume, providing valuable insights for alloy development and grain boundary engineering.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Materials Science, Multidisciplinary
Chunzhi Zhang, Ning Wang, Kuanliang Lu, Wensheng Li, Meilin Shan, Hongjie Fang, Shufeng Zhao
Summary: This study investigates the solution aging treatment on dissimilar aluminum alloy joint, specifically the 7005-T6 and 6063-T6 alloys. The results reveal that the treatment refines the joint grain, dissolves the coarse non-equilibrium phase, and promotes the precipitation of Mg-Zn and Mg-Si. The main precipitations transform from a small amount of β' to the co-existence of η' and β', thereby enhancing the tensile strength of the joint. This research provides valuable guidance for dissimilar aluminum alloy welding.
MATERIALS TODAY COMMUNICATIONS
(2023)
Article
Nanoscience & Nanotechnology
Haocheng Liu, Jia Huang, Chenxu Wang, Songqin Xia, Wei Ge, Qingyuan Liu, Yue Su, Zhiying Gao, Shuang Zhao, Congcong Du, Liuxuan Cao, Tongde Shen, Yugang Wang
Summary: La-doped nanocrystalline 304 austenitic stainless steel shows excellent bubble swelling resistance by providing more nucleation sites to mitigate helium effects. Detailed study on the interaction between He bubbles and grain boundaries/nano-precipitates revealed the mechanisms of He bubble coarsening resistance in NC304-La.
SCRIPTA MATERIALIA
(2021)
Article
Engineering, Marine
Du-Song Kim, Hee-Keun Lee, Woo-Jae Seong, Kwang-Hyeon Lee, Hee-Seon Bang
Summary: The study identified optimal welding conditions for laser-MIG hybrid welding on thick high-Mn steel plates, and the welding performance was confirmed through mechanical property tests, demonstrating the potential for reducing atmospheric pollution effectively.
JOURNAL OF MARINE SCIENCE AND ENGINEERING
(2021)
Article
Chemistry, Physical
Xiangyu Xu, Gang Wang, Runbo Zhang, Guangjun Zhang
Summary: The microstructure and mechanical properties of welded joints between 6252 armor steel and Q550D high-strength low-alloy steel were investigated. The use of ER70S-G and ER140S-G fillers resulted in well-formed and defect-free welded joints. Microstructural analysis revealed the presence of a large Widmanstatten structure at the fusion line on the Q550D side, with apparent grain size changes on the 6252 side. Cylindrical ferrite growth along the bainite grain boundary was observed in the ER70S-G filler weld zone, while the ER140S-G filler weld zone exhibited lower bainite structures. XRD phase analysis showed the formation of more Fe-Ni-Cr compounds and less ferrite in the ER140S-G filler weld. Hardness testing indicated significantly higher hardness in the heat-affected zone on the 6252 side, with the ER140S-G filler resulting in higher hardness in the welded joint. Tensile strength testing demonstrated higher strength in the weld zone compared to the Q550D base material, with ductile fracture being the primary mode of failure in the tensile fracture (SEM) analysis. Impact testing showed improved impact resistance in the welded joint at room temperature, but the impact absorption energy in the weld and heat-affected zone was highly influenced by temperature changes, with brittle fracture occurring easily at low temperatures.
Article
Materials Science, Multidisciplinary
Zhiping Wang, Hongyu Xiao, Wei Chen, Yugang Li, Jiwei Geng, Keneng Li, Peikang Xia, Mingliang Wang, Xianfeng Li, Dong Chen, Haowei Wang
Summary: The dependence of grain boundary structure on precipitation at grain boundaries (GBs) in a TiB2/Al-Zn-Mg-Cu composite has been systematically investigated. It was found that the average size and coverage of grain boundary precipitates (GBPs) increase while the number density decreases with the increasing misorientation of low angle GBs (LAGBs). For high angle GBs (HAGBs), the coincidence site lattice (CSL) GBs and TiB2 particles have an effect on GBPs. The results indicate that TiB2 particles promote the nucleation of GBPs while limiting their growth.
MATERIALS CHARACTERIZATION
(2023)
Article
Chemistry, Physical
Shuchang Zhang, Honghong Wang, Yangwen Wang, Liang Cao
Summary: The high-Mn austenitic steel is a promising material for cryogenic applications in LNG tanks. This study developed well-matched high-Mn welding consumables and prepared welded joints using different welding methods. The results show that the welded joints exhibit good quality, excellent mechanical properties, and stable levels of properties when using similar welding consumables. The lowest cryogenic energy absorption was found at 5 mm away from the fusion line and the hardness of the welded joints was less than 280 HV due to the austenitic microstructure.
Article
Materials Science, Multidisciplinary
Yulin Ma, Chengyang Kuang, Jun Cheng, Changdi Yang
Summary: After high-temperature aging, the room-temperature and high-temperature strength of 9CrMoCoB steel decreased, mainly due to precipitates coarsening.
JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
(2021)
Article
Nanoscience & Nanotechnology
Andrew Peterson, Ian Baker
Summary: The mechanisms of formation and growth of L12 precipitate-free zones in Fe-20Cr-30Ni-2Nb-5Al austenitic stainless steel during creep were studied. PFZs are formed after the dissolution of L12 precipitates due to depletion of nickel and aluminum, and little growth occurs until grain boundaries are covered by Laves phase and B2 precipitates leading to the depletion of surrounding elements. The presence of micro-cracks in PFZs suggests their weakness in the microstructure and their role as initiation points for fracture.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2021)
Article
Materials Science, Multidisciplinary
Mingfeng Li, Wu Tao, Jiazhi Zhang, Yanjun Wang, Shanglu Yang
Summary: This work proposes an innovative hybrid resistance spot-laser welding process for joining aluminum to steel. The process first conducts resistance spot welding of aluminum and steel and then follows with laser spot welding. Through innovative electrode structure design, the welding current distribution and weld structure are optimized to achieve a thin and uniform intermetallic layer. The process also changes the faying interface morphology and improves the tensile-shear load and energy absorption of the joints.
MATERIALS & DESIGN
(2022)
Article
Metallurgy & Metallurgical Engineering
Fan Cong, Yang Shang-lei, Duan Chen-feng, Zhu Min-qi, Bai Yi-shan
Summary: In this study, 3 mm 6061 aluminum alloy sheets were welded by laser MIG hybrid welding. The microstructure, tensile and fatigue fracture morphology, and surface fatigue damage of the welded joints were analyzed. The results showed the presence of two main kinds of precipitates in the welded joints, and the tensile strength of the joint was significantly lower than that of the base metal. The fatigue limits of the welded joints were found to be lower than those of the base metal. Porosity was identified as the main factor leading to the fracture of the welded joints.
JOURNAL OF CENTRAL SOUTH UNIVERSITY
(2022)
Article
Nanoscience & Nanotechnology
Ruzong Zhai, Honglin Zhang, Shilong Pan, Bin Xu, Sheng Liu, Mingyue Sun
Summary: The effect of boron on the microstructure and cryogenic mechanical properties in N50 austenitic stainless steel after aging treatment was investigated. It was found that the nucleation and growth of Cr2N were significantly suppressed in 25B steel due to the retarded diffusion of Cr, Mo, and V atoms caused by B. The segregation of B at grain boundaries weakened the precipitation of nitride and enhanced the cohesion of grain boundaries, synergistically suppressing the initiation and extension of intergranular cracks. The impact toughness of 25B-N50 steel at both 77 K and 4.2 K was about 2.5 times higher than that of 0B-N50 steel, reaching 200 J.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2023)
Article
Materials Science, Multidisciplinary
Jiang Yang, Honggang Dong, Yueqing Xia, Peng Li, Xiaohu Hao, Yaqiang Wang, Wei Wu, Baosen Wang
Summary: The effects of NiCrMo-3 and 307Si filler wires on the microstructure and mechanical properties of medium Mn steel joints were investigated. The joints with NiCrMo-3 filler wire exhibited higher tensile strength, increased microhardness, and reduced impact toughness compared to those with 307Si filler wire. The worst impact toughness was observed around the fusion line in both welded joints.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2021)
Article
Engineering, Industrial
Honggang Dong, Jiang Yang, Yueqing Xia, Xingxing Xu, Peng Li, Chuang Dong, Jingyang Chen, Na Liu, Liang Zheng
Summary: Three nickel-based amorphous filler materials were designed for brazing K4169 superalloy, and the microstructure and shear strength of the brazed joints were examined. The addition of more Cr in the filler material promoted the diffusion of Nb atoms, resulting in increased formation of Nb6Ni16Si7 phase in the brazed seam. The shear strength of the joint varied with different filler materials, with the presence of Cr-Mo rich borides and continuous precipitation exhibiting low resistance to crack.
JOURNAL OF MATERIALS PROCESSING TECHNOLOGY
(2021)
Article
Electrochemistry
Yueting Ma, Honggang Dong, Yaqiang Wang, Guoshun Yang, Yueqing Xia, Peng Li, Xiaohu Hao, Jiang Yang, Baizheng Guo, Hua Ji, Mingkai Lei
Summary: Refilled friction stir spot welding of aluminum alloy to galvanized and uncoated steel was studied for microstructure and corrosion behavior of joints. It was found that Mg and Zn segregated at the grain boundaries of the mixed layer, leading to serious intergranular corrosion. Additionally, the corrosion current density decreased with increasing immersion time due to the passivation films and corrosion products formed on the joint surface.
JOURNAL OF APPLIED ELECTROCHEMISTRY
(2022)
Article
Engineering, Manufacturing
Jiang Yang, Honggang Dong, Yueqing Xia, Peng Li, Wei Wu, Baosen Wang
Summary: The study investigated the microstructure and embrittlement mechanism in the coarse-grain heat-affected zone (CGHAZ) of welded joint. The results showed that carbon element segregated and nanosized carbides precipitated in CGHAZ, causing a decrease in impact toughness in this region.
JOURNAL OF MANUFACTURING PROCESSES
(2021)
Article
Materials Science, Multidisciplinary
Yueting Ma, Honggang Dong, Peng Li, Jiang Yang, Baosheng Wu, Xiaohu Hao, Yueqing Xia, Guangbin Qi
Summary: Replacing steel with aluminum alloy is attractive for achieving lightweight metal structures, but in lap welding of aluminum alloy and galvanized steel, the zinc-rich zone exhibits the highest corrosion susceptibility, with localized corrosion influenced by galvanic effect.
Article
Metallurgy & Metallurgical Engineering
Bensheng Huang, Ziyi Fang, Jiang Yang, Jianneng Zheng, Shuibo Wang
Summary: The numerical simulation and experimental verification of the temperature field, HAZ microstructure evolution, residual stress, and deformation of S355JR-316L dissimilar metal welded joints were conducted. The results indicate that residual stress is mainly concentrated near the weld centerline after welding, and the overall deformation is V-shaped symmetrical, with dissimilar metal welded joints exhibiting greater deformation and angular deformation compared to those welded with the same metal.
WELDING IN THE WORLD
(2022)
Article
Materials Science, Multidisciplinary
Zitao He, Bensheng Huang, Lingzhi Chen, Jianneng Zheng, Jiang Yang, Shuibo Wang
Summary: Based on SYSWELD welding simulation software, this paper predicts the residual stress distribution and deformation of dissimilar metal welded components and studies the influence of groove angle on the thermal temperature history, residual stress, and welding deformation. The results have important practical engineering significance for reducing residual stress and welding deformation by choosing an appropriate groove angle.
JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
(2022)
Article
Engineering, Manufacturing
Libing Huang, Honggang Dong, Yueting Ma, Peng Li, Jiawei Wang, Jiang Yang, Baosheng Wu
Summary: The study investigated the interfacial microstructure and fracture behavior of joints formed by cold metal transfer welding of TC4 titanium alloy and T2 copper sheets with ERCuMnNiAl filler metal. It was found that the thickness and distribution of AlCu2Ti phases significantly affected the mechanical properties of the joints, leading to different fracture modes such as cleavage, ductile-brittle-mixing, and quasi-cleavage fractures.
JOURNAL OF MANUFACTURING PROCESSES
(2022)
Article
Materials Science, Multidisciplinary
Jiang Yang, Honggang Dong, Peng Li, Yueqing Xia, Wei Wu, Baosen Wang
Summary: This study used welding thermal simulation technology to process high-Mn austenitic steel and investigated the effect of peak temperature on microstructural evolution and cryogenic toughness. The results showed that increasing peak temperature resulted in the growth of grain size, carbide precipitates at grain boundaries, and carbon segregation at grain boundaries, leading to a decrease in impact absorbed energy.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Article
Nanoscience & Nanotechnology
Ahmad Mirzaei, Peter D. Hodgson, Xiang Ma, Vanessa K. Peterson, Ehsan Farabi, Gregory S. Rohrer, Hossein Beladi
Summary: This study investigated the influence of parent austenite grain refinement on the intervariant boundary network in a lath martensitic steel. It found that refining the parent austenite grain led to a decrease in the fraction of certain boundaries in the martensite and an increase in the connectivity of low energy boundaries, ultimately improving the impact toughness.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2024)
Article
Nanoscience & Nanotechnology
N. L. Church, C. E. P. Talbot, L. D. Connor, S. Michalik, N. G. Jones
Summary: Metastable beta Ti alloys based on the Ti-Nb system have attracted attention due to their unique properties. However, the unstable cyclic behavior of these alloys has hindered their widespread industrial use. Recent studies have shown that internal stresses, including those from dislocations, may be responsible for this behavior. This study demonstrates that inter-cycle thermal treatments can mitigate the unstable cyclic behavior, providing a significant breakthrough in our understanding of Ti-Nb superelastic materials.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2024)
Article
Nanoscience & Nanotechnology
Di Zhao, Chenchen Zhao, Ziyang Xiu, Jiuchun Yan
Summary: This study proposes a novel strategy for achieving the bonding of SiC ceramic and Al alloy using ultrasound. The ultrasound promotes the dissolution of Al into the solder, activating the solder and triggering the interfacial reaction between SiC ceramic and solder. With increasing ultrasonic duration, the bonding between SiC and Al transitions from partial to full metallurgical bonding.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2024)
Article
Nanoscience & Nanotechnology
Kang Du, Yang Zhang, Guangda Zhao, Tao Huang, Liyuan Liu, Junpeng Li, Xiyu Wang, Zhongwu Zhang
Summary: This paper systematically investigated the evolution of microstructure in Fe-Ni-Co-Al polycrystalline alloys and its effects on mechanical properties. The results revealed that the migration of grain boundaries in different processes is driven by different factors, which impacts the grain orientation and precipitate formation. In the process of directional recrystallization, grains with specific orientations grow in the grain boundary region and form the dominant orientation, while grains with lower migration rate form the minor orientation. The alloy produced through directional recrystallization exhibited good recoverable strain and superelastic strain, while the alloy produced through solid solution treatment showed no evident superelastic behavior.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2024)
Article
Nanoscience & Nanotechnology
Edohamen Awannegbe, Liang Chen, Yue Zhao, Zhijun Qiu, Huijun Li
Summary: This study employed laser metal deposition to additively manufacture Ti-15Mo wt% alloy, and subsequently subjected it to post-fabrication uniaxial thermomechanical processing. The results showed that different zones in the microstructure remained after processing, and deformation mechanisms mainly involved slip and martensite formation. The compressive mechanical properties were found to be dependent on strain rate, with higher flow stress and compressive strength observed at higher strain rates. Grain structure homogenisation was not achieved, leading to anisotropic tensile properties.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2024)
Article
Nanoscience & Nanotechnology
Reza Khatib Zadeh Davani, Enyinnaya George Ohaeri, Sandeep Yadav, Jerzy A. Szpunar, Jing Su, Michael Gaudet, Muhammad Rashid, Muhammad Arafin
Summary: This research aims to investigate the effect of roughing and finishing reductions on crystallographic texture. The results show significant heterogeneity in the centerline region, with higher intensity of certain textures. Drop Weight Tear Test indicates that steel specimens with lower and medium reductions exhibit superior low-temperature impact toughness compared to steel with higher reductions. The electrochemical hydrogen charging experiments confirm the presence of internal hydrogen cracks only in steel with lower and medium reductions.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2024)
Article
Nanoscience & Nanotechnology
Flavio De Barbieri, Denis Jorge-Badiola, Rodrigo Allende, Karem Tello, Alfredo Artigas, Franco Perazzo, Henry Jami, Juan Perez Ipina
Summary: This study examines the effect of Cr additions on the mechanical behavior of TWIP steel at temperatures ranging from 25°C to 350°C. The results indicate that different temperature-dependent strengthening mechanisms, including mechanical twinning, Dynamic Strain Aging, and slip bands, are at play. The stacking fault energy (SFE) influences the percentage of mechanical twinning, which in turn affects the strain hardening rate.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2024)
Article
Nanoscience & Nanotechnology
Hanlin Peng, Siming Huang, Ling Hu, Bingbing Luo, Liejun Li, Ian Baker
Summary: This study explores the weldability, microstructures, and mechanical properties of two L1(2)-nanoparticle-strengthened medium-entropy alloys after electron beam welding (EBW). The results show that strong yet ductile defect-free joints were produced, with larger grain sizes in the fusion zones compared to the heat-affected zones and base materials. Both EBWed MEAs exhibited high yield strengths, high ultimate tensile strengths, and good fracture strains at 77 K. The V-doping improved the cryogenic mechanical properties of the TMT MEA.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2024)
Article
Nanoscience & Nanotechnology
Yongxin Wang, Lei Chen, Lizi Shao, Shuo Hao, Motomichi Koyama, Xingzhou Cai, Xiaocong Ma, Miao Jin
Summary: This study investigated the tensile deformation behavior of an Mn-N bearing lean duplex stainless steel with metastable austenite. The results showed that the strain rate had significant influence on the work hardening, strain-induced martensitic transformation, and fracture mechanism.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2024)
Article
Nanoscience & Nanotechnology
Jong Woo Won, Seulbi Lee, Hye-Jeong Choe, Yong-Taek Hyun, Dong Won Lee, Jeong Hun Lee
Summary: Cold-rolled pure titanium showed improved sheet formability after undergoing cryogenic-deformation treatment. This treatment increased the thinning capability of the titanium and suppressed cracking during sheet forming. The formation of twins during deformation contributed to high thinning capability and increased strength through grain refinement and dislocation accumulation.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2024)
Article
Nanoscience & Nanotechnology
Handong Li, Lin Su, Lijuan Wang, Yanbin Jiang, Jiahui Long, Gaoyong Lin, Zhu Xiao, Yanlin Jia, Zhou Li
Summary: Homogenization heat treatment is a key procedure in controlling the second phase, enhancing composition uniformity, and workability of as-cast Cu-15Ni-8Sn alloy. This study found that electropulsing treatment (EPT) can significantly reduce treatment temperature and time, improve elongation and overall mechanical properties of the alloy.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2024)
Article
Nanoscience & Nanotechnology
Yuxuan Wang, Juntao Zou, Lixing Sun, Yunfei Bai, Zhe Zhang, Junsheng Cheng, Lin Shi, Dazhuo Song, Yihui Jiang, Zhiwei Zhang
Summary: A novel mechanical-heat-electricity synergistic method was proposed to enhance the mechanical properties of Cu-15Sn-0.3Ti alloy by forming annealing twins (ATs). The combination method of Rotary swaging (RS) and Electric pulse treatment (EPT) successfully induced recrystallization and refinement of the microstructure, leading to a significant increase in the strength of the alloy within a short time.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2024)
Article
Nanoscience & Nanotechnology
Zhiyi Ding, Jiangtao Xie, Tong Wang, Aiying Chen, Bin Gan, Jinchao Song
Summary: This study demonstrated the Ta-induced strengthening of CoCrNi-AlTi MEAs using nanoscale heterogeneous coherent precipitates. The addition of Ta and aging treatments significantly enhanced the mechanical properties of the alloy, including yield strength, ultimate tensile strength, and elongation.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2024)
Article
Nanoscience & Nanotechnology
Z. Y. You, Z. Y. Tang, B. Wang, H. W. Zhang, P. Li, L. Zhao, F. B. Chu, H. Ding
Summary: The mechanical properties and microstructural evolution of C-doped TRIP-assisted HEA under dynamic loading conditions were systematically investigated in this study. The results showed that dynamic tensile deformation led to an increase in yield strength and a decrease in ultimate tensile strength, with a trend towards increased total elongation. The primary deformation mechanisms shifted from TRIP and TWIP effects to deformation twinning and dislocations. The presence of carbides formed through C-doping hindered dislocation slip and promoted the activation of multiple twinning systems.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2024)
Article
Nanoscience & Nanotechnology
Feng Qin, Feihu Chen, Junhua Hou, Wenjun Lu, Shaohua Chen, Jianjun Li
Summary: Plastic instability in strong multilayered composites is completely suppressed by architecting nanoscale BCC Nb crystalline-amorphous CuNb interfaces.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2024)
