Article
Chemistry, Physical
Dongyang Li, Hao He, Jia Lou, Hao He, Zheyu He, Fenghua Luo, Yimin Li, Chang Shu
Summary: In Ti-rich Ni-Ti alloys prepared by metal injection molding without solution or aging treatment, non-equilibrium state Ni4Ti3 precipitation was observed. The precipitation was found to be caused by C and O impurities leading to the formation of a Ni-rich region acting as a precursor for Ni4Ti3 precipitation. The absence of a liquid phase during pre-alloyed powder sintering was identified as another reason for this phenomenon. The transformation temperature associated with the non-balanced formation of precipitation was also discussed.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Materials Science, Multidisciplinary
S. Liu, C. B. Ke, S. Cao, X. Ma, Q. S. Wang, X. P. Zhang
Summary: This paper proposes an innovative and practical modeling method to create a coherent atomic configuration of NiTi austenite with lenticular Ni4Ti3 based on molecular dynamics (MD) approach. The initial configuration of Ni4Ti3 is created by expanding lattice constants and then relaxed at specified temperature coupled with energy minimization scheme to optimize the configuration while maintaining coherence with B2 austenite. Ni4Ti3 precipitates in parallel, step-like and edge-to-edge models generate different strain fields by MD simulations; strain fields in the interior of Ni4Ti3 precipitates and at precipitate-matrix interfaces are more consistent with experiments in comparison to that yielded by the Eshelby solution (ES).
Article
Materials Science, Multidisciplinary
Yongdian Han, Minqian Liu, Li Hu, Xinran Kang, Danyang Lin, Yankun Zhang, Lianyong Xu
Summary: In this study, it was found that the aging process can significantly enhance the two-way shape memory effect (TWSME) of NiTi alloys. This improvement is attributed to the formation of coherent Ni4Ti3 nanoprecipitates during the aging treatment. The effects of these nanoprecipitates on lattice defects generated during the deformation of NiTi alloys were investigated.
Article
Chemistry, Physical
Jie Gan, Longchen Duan, Fei Li, Yusi Che, Yan Zhou, Shifeng Wen, Chunze Yan
Summary: This study investigated the influence of laser energy density on the formation and evolution of Ni4Ti3 precipitate in NiTi shape memory alloys fabricated by selective laser melting (SLM). By tailoring the Ni4Ti3 precipitates through laser energy density, the mechanical properties of the NiTi samples were optimized, leading to an ultrahigh compressive strength of 3053.45 MPa, tensile strength of 801.7 MPa, and elongation of 7.64%.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Materials Science, Multidisciplinary
Jiaming Zhu, Hong-Hui Wu, Yuan Wu, Haoliang Wang, Tianlong Zhang, Hu Xiao, Yunzhi Wang, San-Qiang Shi
Summary: This study investigated the influence of Ni4Ti3 precipitation on martensitic transformations in NiTi shape memory alloys through computer simulations. The results showed that Ni concentration gradient and internal coherency stress fields play crucial roles in the structure and development of martensitic domains.
Article
Chemistry, Multidisciplinary
Takumi Odaira, Sheng Xu, Kenji Hirata, Xiao Xu, Toshihiro Omori, Kosuke Ueki, Kyosuke Ueda, Takayuki Narushima, Makoto Nagasako, Stefanus Harjo, Takuro Kawasaki, Lucie Bodnarova, Petr Sedlak, Hanus Seiner, Ryosuke Kainuma
Summary: The demand for biomaterials is increasing due to the aging population worldwide. This study introduces a novel cobalt-chromium-based alloy that has a similar Young's modulus to human bones, as well as high wear resistance, corrosion resistance, and superelasticity, making it a promising candidate for biomedical applications.
ADVANCED MATERIALS
(2022)
Review
Materials Science, Multidisciplinary
Fuzhen Sun, Xinxin Feng, Haizhen Wang, Xinjian Cao, Xiao Liu, Yang Liu, Yan Li, Zhongli Liu, Xiaoyang Yi
Summary: Shape memory alloys are smart materials that have superior properties and are widely used in aerospace, naval, automobile, and biomedicine industries. Functionally graded shape memory alloys are created to achieve accurate controllability for progressive movement. This review paper discusses the classification, fabrications, microstructural features, and performances of functionally graded shape memory alloys. Creating various gradients in shape memory alloys can widen the transformation temperature intervals and transformation stress intervals, leading to excellent performances and wider application range.
ADVANCED ENGINEERING MATERIALS
(2023)
Article
Chemistry, Physical
Kangjie Chu, Bing Wang, Qiao Li, Yusuke Onuki, Fuzeng Ren
Summary: The effect of grain size on temperature-dependent elastic modulus (TDEM) of polycrystalline NiTi was investigated. It was found that the TDEM decreased rapidly with smaller grain size. In-situ neutron diffraction and molecular dynamics simulation revealed that the reduction in grain size led to an increase in the volume fraction and thermal stability of the austenite phase at low temperature, resulting in two-phase coexistence during cooling. The compensation of the intrinsic opposite TDEM of austenite and martensite contributed to the overall reduced TDEM in nanocrystalline NiTi. This study suggests that the TDEM of shape memory alloy can be controlled by grain size.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Engineering, Electrical & Electronic
A. Sibirev, S. Belyaev, N. Resnina
Summary: The study investigates the influence of counter-body stiffness on the recovery stress, recoverable strain, and work output during thermal cycling of NiTi cylindrical samples in the actuator regime. Results show a nonlinear relationship between stiffness values and shape memory effect/recovery stress, and a gradual decrease in recovery stress, work output values during thermal cycling.
SENSORS AND ACTUATORS A-PHYSICAL
(2021)
Article
Nanoscience & Nanotechnology
Hao Yu, Ying Qiu, Marcus L. Young
Summary: This paper investigates the influence of heat treatment on the mechanical properties of austenitic NiTi alloys, with Ni4Ti3 precipitates shown to improve the pseudoelasticity of NiTi SMAs during impact loading.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2021)
Article
Engineering, Mechanical
Tao Xu, Chunyu Wang, Yuquan Zhu, Yu Wang, Yabin Yan, Jie Wang, Takahiro Shimada, Takayuki Kitamura
Summary: This study proposes the concept of temperature-controlled mechanics and demonstrates the design of NiTi alloys with exceptional mechanical properties by combining high-throughput phase-field simulations and machine learning approaches. The nontrivial mechanical properties, including ultra-low modulus, linear superelasticity, and no hysteresis, are achieved through continuous variations in the critical stress for the martensitic transformation. Active learning workflow and the SISSO algorithm are employed to optimize the temperature environment and establish an explicit expression for the Young's modulus, providing guidance for the inverse design of the temperature field. This research not only provides insights into the effects of temperature gradients on martensitic transformations and mechanical properties, but also offers a promising computational approach for developing advanced materials.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2023)
Article
Materials Science, Multidisciplinary
Shan Liu, Yao Lin, Guangchun Wang, Xiebin Wang
Summary: By conducting various aging treatments at different temperatures and durations, the distribution of Ni4Ti3 precipitates can be controlled, thereby improving the superelasticity of Ti-50.8 at.% Ni alloys.
MATERIALS CHARACTERIZATION
(2021)
Article
Materials Science, Multidisciplinary
Zhu Li, Fei Xiao, Hong Chen, Ruihang Hou, Xiaorong Cai, Xuejun Jin
Summary: This study investigated the effects of Ni4Ti3 precipitation on the strain fields and thermally-induced martensitic transformation in NiTi alloy, using molecular dynamics simulations and theoretical analyses. New self-accommodation structures were discovered, suggesting a potential design route for low hysteresis microactuators.
Article
Engineering, Electrical & Electronic
A. Sibirev, S. Belyaev, N. Resnina
Summary: The influence of fraction of the forward and reverse martensitic transformations on the variations in the recoverable strain, recovery stress, work output and irreversible strain was studied. The equiatomic NiTi alloy was subjected to thermal cycling under torque stress and pre-deformed by various strain. The results showed that thermal cycling at different strains caused changes in these characteristic parameters.
SENSORS AND ACTUATORS A-PHYSICAL
(2023)
Article
Engineering, Mechanical
Fei Xiao, Kangjie Chu, Zhu Li, Ruihang Hou, Yipeng Gao, Qingping Sun, Xuejun Jin
Summary: Superelasticity is a promising functional property of shape memory alloys, and one important issue to solve in order to utilize it is to achieve sufficient fatigue life during the mechanical cyclic phase transformation. This study successfully manufactured NiTi single crystalline micropillars with different crystalline orientations and Ti3Ni4 precipitates. The micropillar with the [20 2_ 9]B2 crystalline orientation showed stable superelasticity during cyclic compression, with minimal decay over 107 phase transformation cycles. By analyzing the effects of cyclic martensitic transformations, the study suggests that tailoring aligned precipitates and preferred crystal orientation can lead to fatigue resistant shape memory alloys.
INTERNATIONAL JOURNAL OF PLASTICITY
(2023)
Article
Materials Science, Multidisciplinary
Zhiqing Yang, Weiwei Hu, Lifeng Zhang, Hengqiang Ye
PHYSICAL REVIEW MATERIALS
(2019)
Article
Materials Science, Multidisciplinary
Lifeng Zhang, Shangyi Ma, Weizhen Wang, Zhiqing Yang, Hengqiang Ye
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2019)
Article
Materials Science, Multidisciplinary
Wei Cui, Qibin Song, Huhu Su, Zhiqing Yang, Rui Yang, Na Li, Xing Zhang
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2020)
Article
Nanoscience & Nanotechnology
Pingli Mao, Yan Xin, Ke Han, Zheng Liu, Zhiqing Yang
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2020)
Article
Materials Science, Multidisciplinary
Fan Zhang, Yu Ren, Zhiqing Yang, Huhu Su, Zhen Lu, Chengwen Tan, Hailong Peng, Kentaro Watanabe, Bin Li, Matthew R. Barnett, Mingwei Chen
Article
Chemistry, Multidisciplinary
W. Z. Wang, X. Z. Zhou, Z. Q. Yang, Y. Qi, H. Q. Ye
Article
Chemistry, Physical
W. Z. Wang, D. Wu, R. S. Chen, Y. Qi, H. Q. Ye, Z. Q. Yang
JOURNAL OF ALLOYS AND COMPOUNDS
(2020)
Article
Materials Science, Multidisciplinary
Huhu Su, Xinzhe Zhou, Shijian Zheng, Hengqiang Ye, Zhiqing Yang
Summary: The study investigated the reactions between basal dislocations and CTBs in a Mg alloy, showing that these reactions can facilitate TB migration and change the grain boundary structure. The loss of local coherency induced by dislocation-TB reactions does not inherently impede TB migration, providing a new strategy to improve the ductility of Mg alloys.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2021)
Article
Nanoscience & Nanotechnology
Huhu Su, Xinzhe Zhou, Shijian Zheng, Di Wu, Rongshi Chen, Hengqiang Ye, Zhiqing Yang
SCRIPTA MATERIALIA
(2020)
Article
Metallurgy & Metallurgical Engineering
Meichen Liang, Hao Zhang, Lifeng Zhang, Peng Xue, Dingrui Ni, Weizhen Wang, Zongyi Ma, Hengqiang Ye, Zhiqing Yang
Summary: Microstructural evolution of Mg-based alloys during severe plastic deformation and mixing via friction stir welding was studied. The formation of a laminated onion-ring structure with significantly refined microstructures was observed in the stirred zone, leading to improved ultimate tensile strength and elongation to failure.
ACTA METALLURGICA SINICA-ENGLISH LETTERS
(2021)
Article
Materials Science, Multidisciplinary
Huhu Su, Xinzhe Zhou, Mengmeng Zhang, Shijian Zheng, Hengqiang Ye, Zhiqing Yang
Summary: In this study, reactions of {10 (1) over bar1} twin boundaries (TBs) with slip dislocations in a Mg alloy were investigated and modeled based on atomic-resolution observations and interfacial defect theory. The reactions were found to produce asymmetric tilt grain boundaries and various types of residual dislocations, leading to modifications in local atomic structures of steps at {10 (1) over bar1} TBs. These experimental results provide insights for understanding the plastic relaxation mechanisms at {10 (1) over bar1} TBs.
Article
Multidisciplinary Sciences
Hao Qin, Chao Zhen, Chunxu Jia, Zhiqing Yang, Hengqiang Ye, Hui-Ming Cheng, Gang Liu
Summary: A new method based on gaseous thermal oxidation-nitridation-denitridation processes has been developed to prepare metal foams with adjustable pore size; the resulting metal foams demonstrate enhanced performance in electrochemical water splitting and electrochemical energy storage.
Article
Materials Science, Multidisciplinary
Xinzhe Zhou, Huhu Su, Hengqiang Ye, Zhiqing Yang
Summary: The study investigates the reactions of {10 (1) over bar2} twin boundaries with dislocations in a Mg alloy subjected to cyclic deformation through atomic-resolution observations and MD simulations. It was found that different types of dislocations exhibit different reactions with {10 (1) over bar2} twin boundaries during cyclic deformation.
Article
Engineering, Environmental
Muhua Chen, Yuping Qiu, Weizhen Wang, Xinyan Li, Jiajun Wang, He Wen, Zhiqing Yang, Ping Wang
Summary: By engineering oxygen vacancies through amorphization and foreign cation doping in iron oxide, a supported Pt catalyst on Fe-W-O amorphous nanosheets was synthesized. This catalyst demonstrated a high specific reaction rate and excellent stability during continuous testing, outperforming most existing HCHO oxidation catalysts, highlighting the importance of functional oxygen defects in constructing synergistic active sites for promoting reactions requiring multiple active species.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Chemistry, Physical
Yu-Ping Qiu, Wei-Zhen Wang, Mu-Hua Chen, Qing Shi, Zhi-Qing Yang, Ping Wang
Summary: This study reports the synthesis of an Ir-Ru-B/CeO2 catalyst and its intriguing properties for catalyzing N2H4・H2O decomposition. The results show that Ir-Ru alloying, B-doping, and strong metal-support interactions collectively contribute to the catalytic performance, leading to over 4-fold higher activity compared to state-of-the-art catalysts.
JOURNAL OF MATERIALS CHEMISTRY A
(2021)
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)
