Article
Chemistry, Multidisciplinary
Qijun Xia, Pengwei Ren, Huimin Meng
Summary: The purpose of this study is to investigate the corrosion resistance of different nanoscale microstructures in the same material system and propose a novel method to obtain high-performance materials. Microstructure refinement and microalloying have become the main methods to prepare high-performance materials. The results show that the material loss of the amorphous-nanocrystalline coating is about 1/4 that of the crystalline coating at 8 MPa, and the hydrostatic pressure has a significant acceleration effect on the corrosion rate.
Article
Materials Science, Multidisciplinary
Tianyu Liu, Xingwei Liu, Jin Cao, Xinya Feng, Shukui Li, Jinxu Liu
Summary: An amorphous interlayer was introduced between Mo and Cu phases in Mo-Cu alloys using the high-temperature infiltration method. The thickening of the amorphous interlayer significantly improved the interfacial bonding, leading to an increase in the tensile strength and failure strain of the Mo-Cu alloy.
MATERIALS & DESIGN
(2023)
Article
Chemistry, Physical
Yabo Fu, Haonan Chen, Renqing Guo, Yuanding Huang, Mohammad Reza Toroghinejad
Summary: The study investigated the microstructure and mechanical properties of Zr-based alloys prepared by vacuum suction-cast, revealing that the alloy with gradient amorphous structure exhibited exceptional strength and ductility, with a maximum compressive strength of 1811.7 MPa and a plastic strain of 23.6%. The enhancement of strength was attributed to the presence of nanoscaled amorphous particles, oxide nanoparticles, and the toughening phase CuZr in the alloy.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Engineering, Mechanical
Zhiying Liu, Renkai Li, Daolun Chen, Yu Sun, Bei He, Yu Zou
Summary: In this study, we report the activation of microscale shear bands (MSBs) in an LDED-produced titanium alloy to enhance its tensile ductility. Our results suggest that the nucleation and propagation of MSBs depend on the local shear stress and are influenced by the boundaries between hard and soft domains. Activating MSBs provides a new opportunity to effectively enhance the ductility of LDED-produced titanium alloys.
INTERNATIONAL JOURNAL OF PLASTICITY
(2022)
Article
Nanoscience & Nanotechnology
Kai Yao, Shewei Xin, Yi Yang, Yu Du, Jincai Dai, Ting Li, Xiaohua Min
Summary: The tensile behavior of metastable beta-type Ti-15Mo alloy with {332}<113> twinning-induced plasticity (TWIP) effect was investigated at 20K. It was found that the alloy exhibited ultrahigh strength and excellent elongation, making it a major advancement for cryogenic applications. The serrated tensile curve and multiple necking observed were attributed to the formation of twins. The presence of abundant {332}<113> twins and piled-up dislocations at twin boundaries hindered local plastic deformation and necking, resulting in simultaneous enhancement of strength and ductility. Exploiting the {332}<113> TWIP effect in body-centered cubic (BCC) structured titanium alloys is a novel strategy for cryogenic alloy development.
SCRIPTA MATERIALIA
(2022)
Article
Chemistry, Physical
Krystian Zygula, Marek Wojtaszek
Summary: This study investigated the in situ synthesis mechanism during the preparation of a beta titanium alloy matrix composite using a mixture of elemental metal powders. The formation of reinforcing phases was confirmed by X-ray diffraction and microstructural analyses, and the diffusion kinetics of alloying elements were evaluated using SEM and EDS analyses.
Article
Nanoscience & Nanotechnology
Wei Zhang, Shiqi Zhou, Weijia Ren, Qihang Zhou, Jiarui Wei, Mabao Liu, Shuan Ma, Yanjie Yang, Zijun Ren
Summary: In this study, graphene nanoplatelets reinforced titanium matrix composites were fabricated and their properties were adjusted through the addition of graphene nanoplatelets. The addition of graphene nanoplatelets resulted in a peculiar trend in which the ductility of the composites showed a hump type behavior while the strength increased monotonically. The humping ductility was attributed to the fine-grained matrix contributed by graphene nanoplatelets and in-situ generated titanium carbide. Further additions of graphene nanoplatelets led to the establishment of a network distribution of titanium carbide and graphene nanoplatelets, which resulted in a more uniform deformation and the formation of a near equiaxed fine-grained microstructure. However, excessive additions of titanium carbide and graphene nanoplatelets improved the strength but reduced the ductility due to their agglomeration.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2022)
Article
Materials Science, Multidisciplinary
Long Hou, Qizhong Shang, Benjun Wang, Pengyan Zhang, Li Liu, Zhong Li, Weihuo Li
Summary: In this study, FeBCCu amorphous ribbons with special properties were synthesized via oxygen regulation. The researchers investigated the amorphous formation, magnetic properties, and bending ductility of these ribbons. They found that the surface crystallization of the O-added alloy was closely related to the segregation of Cu on the surface. Through isothermal stress-relieving annealing, the crystalized O-added alloy exhibited good magnetization and bending ductility, effectively mitigating the brittle failure of the ribbons. This work provides a feasible strategy to balance the magnetization and brittleness of nanocrystalline alloys.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2023)
Article
Materials Science, Multidisciplinary
Hansung Lee, Ashutosh Sharma, Byungmin Ahn
Summary: This study fabricated nanostructured Ti-Fe alloys using cryomilling and spark plasma sintering (SPS), and investigated the phase evolution and mechanical properties at different temperatures. The results showed that the phase change of the Ti-Fe alloy during SPS treatment was temperature-dependent, and the compressive strength increased with increasing temperature.
JOURNAL OF MATERIALS SCIENCE
(2022)
Article
Materials Science, Multidisciplinary
Surendra Kumar Chourasiya, Gaurav Gautam, Devendra Singh
Summary: The study examined the impact of warm rolling on the mechanical performance of an Al/Graphite alloy composite, and found that rolling could refine the grain size of alpha-aluminium and improve the strength and elongation percentage of the composite. As the reduction in rolling increased, the performance of the composite gradually improved.
METALS AND MATERIALS INTERNATIONAL
(2021)
Article
Materials Science, Multidisciplinary
Haoyu Zhang, Chuan Wang, Ge Zhou, Siqian Zhang, Lijia Chen
Summary: This study investigates the correlation between microstructure, strength, and ductility in a novel metastable beta titanium alloy, Ti-6Mo-5V-3Al-2Fe. TEM and SEM were used to observe the secondary alpha phase (alpha(s)) of the aged alloy, and a room temperature tensile test characterized its strength and ductility. The results show that the minimum width and spacing of alpha(s) can be achieved after aging at 470 degrees C for 4h. The study establishes a relational equation between precipitation strengthening and alpha(s) spacing length and demonstrates that the average spacing length of alpha(s) plays a predominant role in the alloy's strengthening. The alloy's ductility is improved by the widening of alpha(s) spacing and the formation of Widmanstaeurotten a phase (WGB alpha) along beta grain boundaries after aging at 620 degrees C for 4h.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Article
Materials Science, Composites
Wendian Fan, Longlong Dong, Fukai Zheng, Mingjia Li, Guodong Sun, Junjie Xu, Xiang Li, Yongqing Fu, Ahmed Elmarakbi, Lianwen Wang, Yusheng Zhang
Summary: Composites of TiC/(TC18 + TC4) with designed heterogeneous network structures, reinforced by graphene and ss-TC18 alloy, were successfully synthesized using spark plasma sintering. The composites exhibit superior high strength and ductility compared to monolithic TC4 and TC18. Incompatible plastic deformation behaviors of TC18 and TC4 enhance the ductility of the composites, and refinement strengthening and heterostructure-deformation induced hardening are key mechanisms for achieving high strength.
COMPOSITES COMMUNICATIONS
(2023)
Article
Nanoscience & Nanotechnology
Q. Zhou, X. Z. Zhang, T. Song, S. L. Lu, T. Dong, H. P. Tang, M. Qian
Summary: In this study, the fabrication of Ti-1Al-8V-5Fe (Ti-185) alloy using laser directed energy deposition (L-DED) was investigated. The precipitate phases along the build height were found to have a significant influence on the tensile properties of the alloy. The formation of the embrittling isothermal omega-phase (omega iso) was found to result in zero plasticity in the top region of the sample, while the middle region without the omega-phase exhibited significant tensile ductility and strength. Furthermore, it was demonstrated that converting the isothermal omega-phase to the athermal omega-phase (omega ath) restored the tensile ductility of the alloy.
SCRIPTA MATERIALIA
(2024)
Article
Engineering, Multidisciplinary
Huaduo Wu, Yuanfei Han, Guangfa Huang, Nan Zong, Jianwei Mao, Huigang Shi, Weijie Lu
Summary: A novel fiber-like structural TiB reinforced titanium matrix composite was designed to achieve a combination of high strength and ductility. Through the improvement of structure and microstructure, the material showed enhanced tensile strength, comparable ductility, higher deformation ability, back stress during loading, and increased strain hardening rate. The higher mechanical response of the TiB/Ti composites is attributed to the introduction of TiB reinforcements with the new fiber-like structure, and the coupling effect of consequent grain refinement, load transferring effect, dislocation pinning effect of the fine TiB particles, back stress strengthening and the higher Schmid factors of prismatic slips.
COMPOSITES PART B-ENGINEERING
(2022)
Article
Materials Science, Multidisciplinary
Zihao Wang, Jing Xue, Yuchi Liu, Jianxiong Xing, Aijun Zhou, Jingze Li, Wei Zou, Fu Zhou, Hong Li
Summary: In this study, a network of LixCu solid solution alloy nanowires was formed in Ni foam to address the limitations caused by the macropores in porous metal architectures, resulting in a three-component composite anode with exceptional cycling stability. The integration of LixCu nanowires significantly increased the active surface area and induced uniform Li deposition, while the hierarchical architecture further tuned the nucleation and growth behavior of Li, leading to long-term cycling stability even under high current rates.
SCIENCE CHINA-MATERIALS
(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)