Article
Materials Science, Multidisciplinary
Rui Yang, Song Li, Nan Zhang, Chao Wang, Ting-Mei Wang, Qi-Hua Wang
Summary: The microstructure characteristics of TiNi alloy during hot rolling and corresponding tribology performance were investigated. The deformation mechanisms mainly involved mechanical twinning, dislocations, and stacking faults. Different tribological behaviors were observed in hot-rolled and heat-treated alloys. Wear resistance improved with high defect density in microstructures after aging, accompanied by a decrease in hardness.
Article
Nanoscience & Nanotechnology
Xiaogang Wu, Bowen Zhang, Youyun Zhang, Hongzhi Niu, Deliang Zhang
Summary: A powder metallurgy near alpha titanium alloy was fabricated by in-situ dehydrogenation and hot extrusion, leading to three different microstructures. Despite similar strength, the Type II microstructure exhibited significantly lower ductility compared to the other types.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2021)
Article
Nanoscience & Nanotechnology
Jinxiong Hou, Junwei Qiao, Junhe Lian, Peter K. Liaw
Summary: The study reveals the complex relationship among microstructures and mechanical behaviors of Al0.1CoCrFeNi high-entropy alloys after cold rolling and annealing. Cold rolling induces grain coarsening and formation of lamellar slip bands, while facilitating texture evolution and novel strength anisotropy. However, the overall strength is more influenced by dynamic grain refinement rather than increased dislocation density.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2021)
Article
Crystallography
Shuwei Liu, Yanfeng Li, Xiaoyun Song, Yang Yu, Wenjun Ye, Songxiao Hui
Summary: The effect of annealing temperature on the microstructures and mechanical properties of Ti50Ni47Fe3 shape memory alloy was studied. Different characterization techniques were used, and the results show that recovery occurs at 500°C and recrystallization occurs at 600°C. The alloy exhibits excellent comprehensive mechanical properties at 600°C, but the mechanical properties decrease sharply above this temperature.
Article
Mechanics
Hyuk Jong Bong, Daeyong Kim, Yong-Nam Kwon, Jinwoo Lee
Summary: This study investigated the hot deformation behavior of Ti-6Al-4V alloy sheets at a temperature of 650℃ after various forming histories, including empirical testing of different deformation modes and quantifying results through damage modeling. Constitutive modeling, including flow softening and strain rate sensitivity, was conducted and material constants were calibrated using hot uniaxial tension tests at various strain rates. Thermomechanical finite element simulations were used to predict the plastic deformation and failure behaviors of the alloy sheets under hot forming conditions. The research results provide a basis for optimal hot forming processes for titanium alloys.
EUROPEAN JOURNAL OF MECHANICS A-SOLIDS
(2021)
Article
Materials Science, Multidisciplinary
Dingxuan Zhao, Keer Li, Jixiong Liu, Rui Li, Wei Chen, Jinyu Zhang, Xiaoxiang Wang, Jun Sun
Summary: In this study, boron (B) additions were used to optimize the microstructure and mechanical properties of Ti-6Cr-5Mo-5V-4Al (Ti6554) hot-rolled wires. The addition of B promoted microstructural homogenization of the wires, reducing mechanical fluctuations and achieving a better combination of strength and ductility. The addition of B facilitated dynamic recrystallization (DRX) and benefited the microstructural homogenization of the wires. These findings provide helpful guidance for the microstructural and performance optimization of titanium alloy wires.
MATERIALS & DESIGN
(2023)
Article
Nanoscience & Nanotechnology
Chengpeng Zhu, Genshen Peng, Y. C. Lin, Xiao-Yong Zhang, Chaoqiang Liu, Kechao Zhou
Summary: The study investigated the effects of molybdenum and chromium content on the microstructure, mechanical properties, and deformation mechanisms of novel titanium alloys. Molybdenum notably influenced grain refinement during quenching, while the ductility of the alloys was mainly affected by the deformation ability of the alpha phase.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2021)
Article
Materials Science, Multidisciplinary
Yanhua Guo, Kui Yu, Jingzhe Niu, Meng Sun, Guoqing Dai, Zhonggang Sun, Hui Chang
Summary: In this study, nickel and phosphorus decorated graphene nanoflakes (Ni-P@GNFs) were prepared as a reinforcement in Ti-6Al-4V (TC4) alloy matrix. The homogeneous dispersion of graphene nanoflakes in the matrix significantly improved the mechanical properties of the composites.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2021)
Article
Materials Science, Multidisciplinary
Rong Chen, Song-Xiao Hui, Wen-Jun Ye, Yang Yu, Xu-Jun Mi, Dong-Geun Lee, Yong-Tai Lee
Summary: The hot deformation behaviors of Ti-2Al-9.2Mo2Fe alloy with boron were investigated at different temperatures and strain rates. Both alloys showed dynamic recrystallization (DRX) with decreasing strain rate and increasing deformation temperature. The mechanisms of DRX involved grain boundary bulging and subgrain rotation. The boron-containing alloy exhibited DRX due to the particle-stimulated nucleation mechanism, while the boron-free alloy only showed dynamic recovery (DRV) phenomenon.
Article
Materials Science, Multidisciplinary
Zhijun Yang, Jingxian Li, Binbin Zhang, Jinghua Li
Summary: The microstructural characteristics and mechanical properties of a thick plate of Ti-6Al-2Zr-2Sn-3Mo-1.5Cr-2Nb (TC21) damage-tolerant alloy after electron-beam welding and solution aging treatment were investigated. The results showed that after solution aging, the fluctuation in hardness value decreased, the ultimate tensile strength slightly decreased, while the elongation and impact toughness significantly increased in the welded joint.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Article
Materials Science, Multidisciplinary
Guanghua Xu, Jieyan Tao, Yuqin Zhang, Junsheng Wang, Yehua Jiang
Summary: To achieve low-cost titanium alloys with improved strength and ductility, 0.1 wt% of boron was added to the Ti-4Al-2.5V-1.5Fe alloy using titanium diboride (TiB2) as a boron source. The addition of borides greatly influenced the material parameters and improved the spheroidization and recrystallization of the alloy. This resulted in a fine grain structure and improved processibility, mitigating flow localization and enhancing the mechanical properties.
MATERIALS & DESIGN
(2023)
Article
Chemistry, Physical
Bingyao Yan, Yanqiu Zhang, Shuyong Jiang, Junbo Yu, Dong Sun, Ming Tang
Summary: The mechanical properties and fracture mechanisms of martensitic NiTi shape memory alloy were studied through thermomechanical processing, leading to significant changes in microstructure and differences in plasticity and fracture strength of the alloy. The decrease in plasticity in the annealed alloy is mainly attributed to the reduction of reorientation+detwinning zone and plastic zone, as well as the difference in crack-path configuration resulting in a larger proportion of fracture mode I in the annealed alloy.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Nanoscience & Nanotechnology
Yong Wu, Ronglei Fan, Minghe Chen, Kehuan Wang, Jie Zhao, Wenchao Xiao
Summary: The study focused on investigating the high-temperature anisotropy and microstructure evolution mechanisms of the rolled TA32 titanium alloy sheet. It was found that the TD sample exhibited the largest peak strength, while the DD sample displayed the highest elongation. The dominant dislocation slip modes for RD, DD, and TD samples were identified as prismatic slip, the coupling of basal and prismatic slips, and pyramidal slips, respectively. Furthermore, the DRX mechanism of TA32 titanium alloy during hot deformation was a combination of DDRX and CDRX, which could weaken the anisotropy.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2021)
Article
Materials Science, Multidisciplinary
Gang Zhou, Shewei Xin, Hui Xing, Kai Zhang, Siyuan Zhang, Zhibo Liu, Jiahao Zhang, Jian Huang, Yi Yang, Hao Wang, Aijun Huang
Summary: Investigation on the tensile properties of Ti-6.5Al-2Sn-4Zr-4Mo-1W-0.2Si alloy with three different microstructures (lamellar, bimodal, and equiaxed) was conducted at both room temperature and 550 degrees C. The results indicate that an increase in the volume fraction of primary alpha phase leads to a decrease in yield and ultimate tensile strengths, while enhancing ductility at both temperatures. This can be attributed to the decrease in the beta transformed microstructure, which hinders dislocation slipping through high-density alpha/beta interfaces. Moreover, the lower yield and ultimate tensile strengths as well as the higher ductility at 550 degrees C can be attributed to the activation of multislipping systems at elevated temperatures.
ADVANCED ENGINEERING MATERIALS
(2023)
Article
Chemistry, Physical
Xinwei Hong, Chun-Hway Hsueh
Summary: Element addition can improve the properties of alloys, and in this study, yttrium addition was found to significantly enhance the microhardness and strength of CoCrNi medium entropy alloys (MEAs) by increasing the volume fraction of YNi5 precipitates. The hardness and strength of the alloys scaled with the volume fraction of precipitates, with precipitation strengthening being the major contribution while solid solution and grain boundary strengthening had minor contributions.
Article
Materials Science, Multidisciplinary
Tongyu Han, Haifeng Shi, Yigang Chen
Summary: In this study, a novel S-scheme system was built by combining CuO with BiVO4 to activate PMS for antibiotic degradation. The system exhibited excellent visible light absorption performance and remarkable charge separation ability, suggesting its potential application in enhancing PMS activation and purifying antibiotics in water.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2024)
Article
Materials Science, Multidisciplinary
Linlin Zhou, Tao Yang, Chunyu Guo, Kang Wang, Enhui Wang, Laipan Zhu, Hailong Wang, Sheng Cao, Kuo-Chih Chou, Xinmei Hou
Summary: Piezoelectric silicon carbide (SiC) has been considered for various applications due to its superior properties. However, its brittleness and unsatisfactory piezoelectric response have limited its use. In this study, PVDF/6H-SiC composite fiber films were fabricated and used for assembling high-performance energy harvesters and sensors. The results showed significant improvements in piezoelectric response and sensitivity compared to pure PVDF films. First-principles calculation and finite element analysis confirmed the effect of SiC nanoparticles on the composite film.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2024)
Article
Materials Science, Multidisciplinary
Y. F. An, X. P. Chen, L. Mei, P. Ren, D. Wei, W. Q. Cao
Summary: This study systematically investigates the precipitation sequence of Fe-28Mn-11Al-1C-5Ni austenitic low-density steel and its influence on mechanical properties. The results reveal the transformation pathway of kappa' -carbides and B2 particles under different aging conditions. This research is meaningful for guiding the design of new generation dual-nano precipitation austenitic lightweight steel.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2024)
Article
Materials Science, Multidisciplinary
Lei Yang, Tingkai Zhao, Abdul Jalil, Huijun Luo, Tao Jiang, Yuan Shu, Yazhou Yin, Weiyu Jia
Summary: In this study, a strategy utilizing oxygen vacancy concentration modulation was used to successfully grow semiconducting single-walled carbon nanotubes (s-SWCNTs) with narrow diameters. The Fe0.01Mg0.99O/CeO2(3) catalyst was employed to provide oxygen vacancies, allowing for selective etching of chemically active carbon nanotube caps during the growth process. The optimized conditions resulted in high purity s-SWCNTs with uniform diameters.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2024)
Letter
Materials Science, Multidisciplinary
Lingjun Xu, Pruch Kijkla, Sith Kumseranee, Suchada Punpruk, Tingyue Gu
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2024)
Article
Materials Science, Multidisciplinary
X. P. Hu, Y. H. Zhang, C. B. Liu, H. Z. Cui
Summary: In this study, a novel polyaniline (PANI) nanosheet with barrier and passivation functions was synthesized, and its interaction with polymeric resin was enhanced by polydopamine (PDA) wrapping. The composite coating with incorporated PANI@PDA nanosheets showed improved corrosion resistance by providing a longer penetration path and inducing the formation of a passivation film on the metal substrate.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2024)
Article
Materials Science, Multidisciplinary
Yan Zhang, Xuehua Liu, Zhiqiang Guo, Chenyu Jia, Feng Lu, Zirui Jia, Guanglei Wu
Summary: In this study, a self-assembling-etching-anchoring growth method was proposed to prepare MXene@Co electromagnetic wave absorbing materials. The hollow structure design and surface anchored growth of magnetic Co particles significantly enhanced the wave absorption performance of the absorber.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2024)
Review
Materials Science, Multidisciplinary
Yajing Ren, Yunfeng Li, Guixu Pan, Ning Wang, Yan Xing, Zhenyi Zhang
Summary: Photocatalytic technology utilizing sunlight as a driving force can convert solar energy into other energy sources for storage and use. CdS, as a typical reducing semiconductor, has attracted attention in photocatalysis due to its suitable bandgap and strong reducing ability. However, the photocatalytic performance of CdS is limited by carrier recombination and photocorrosion. Therefore, CdS has been widely developed as a reducing photocatalyst in constructing S-scheme heterojunctions to overcome these limitations.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2024)
Article
Materials Science, Multidisciplinary
Diao-Feng Li, Chun-Guang Bai, Zhi-Qiang Zhang, Hui-Bo Zhang, Nan Li, Jian Zhao
Summary: A novel compliant spinal fixation based on compliant mechanisms is designed to effectively reduce stress-shielding effect and adjacent segment degeneration (ASD), but it requires high properties of the used materials. Bulk metallic glasses (BMGs), as young biomaterials, demonstrate excellent comprehensive properties, making them attractive for compliant spinal fixation. In this study, the large deflection deformation behaviors of Zr61Ti2Cu25Al12 (at.%, ZT1) BMG beam were systematically investigated, including elastic, yielding, and plastic deformations. The theoretical nonlinear analytical solution curve predicts the load-deflection relation within the elastic deformation regime and assists in capturing the yielding event, serving as a powerful design tool for engineers. To accurately capture the beginning of the yielding event in biomedical implant applications, the concept of bending proof strength (sigma p,0.05%) with tiny permanent strain of 0.05% was proposed and determined, which is significant for setting the allowable operating limits of the basic flexible elements. The plastic deformation driven by the bending moment can be classified into two stages: the initial stage characterized by nucleation and intense interaction of shear bands, and the second stage dominated by the progressive propagation of shear bands and emergence of shear offsets. The plasticity of BMG beam structures depends on the BMG's inherent plastic zone size (rp), and when the half beam thickness is less than that of rp, the plastic deformation of BMGs behaves in a stable manner, effectively serving as the margin of safety.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2024)
Review
Materials Science, Multidisciplinary
Yanlin Li, Zhu Ma, Shanyue Hou, Qianyu Liu, Guangyuan Yan, Xiaoshan Li, Tangjie Yu, Zhuowei Du, Junbo Yang, Yi Chen, Wei You, Qiang Yang, Yan Xiang, Shufang Tang, Xuelin Yue, Meng Zhang, Wenfeng Zhang, Jian Yu, Yuelong Huang, Jiale Xie, Chun Tang, Yaohua Mai, Kuan Sun
Summary: This paper provides an overview of hydrogen progress from solar energy to solar cells, with a focus on photovoltaic-electrolysis and photoelectrochemical/photovoltaic systems. Both systems have achieved a solar-to-hydrogen efficiency of over 10% and show great potential for large-scale application. The challenges and opportunities in this field, including configuration design, electrode materials, and performance evaluation, are summarized. The paper also analyzes and presents perspectives on the potential commercial application and further scientific research for the development of solar-to-hydrogen.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2024)
Article
Materials Science, Multidisciplinary
L. K. Huang, F. Liu, M. X. Huang
Summary: The bainite transformation in medium Mn steels has been experimentally and theoretically studied, and it has been found that the transformation kinetics is slow. However, the introduction of dislocations can significantly accelerate the transformation rate. A new "carbon depletion mechanism" is proposed to explain the role of dislocations in the acceleration of bainite transformation, and a physical model is developed to quantitatively understand the kinetics of bainite transformation.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2024)
Review
Materials Science, Multidisciplinary
Jing Qiao, Lutong Li, Jiurong Liu, Na Wu, Wei Liu, Fan Wu, Zhihui Zeng
Summary: Rare earth plays a crucial role in electromagnetic wave absorption materials, and the strategies of doping rare earth elements and constructing rare earth oxide composites are important for the fabrication of high-efficiency electromagnetic wave absorption materials. This review provides a comprehensive summary of the research background, classification, features, progress, and future development of rare earth electromagnetic wave absorption materials, offering guidance for future development.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2024)
Article
Materials Science, Multidisciplinary
Jiacheng Ge, Yao Gu, Zhongzheng Yao, Sinan Liu, Huiqiang Ying, Chenyu Lu, Zhenduo Wu, Yang Ren, Jun-ichi Suzuki, Zhenhua Xie, Yubin Ke, Jianrong Zeng, He Zhu, Song Tang, Xun-Li Wang, Si Lan
Summary: Fe-based metallic glasses are promising materials in the fields of advanced magnetism and sensors. This study proposes a novel approach to tailor the amorphous structure through liquid-liquid phase transition, and provides insights into the correlation between structural disorder and magnetic order. The results show that the liquid-liquid phase transition can induce more locally ordered nanodomains, leading to stronger exchange interactions and increased saturation magnetization. The increased local heterogeneity also enhances magnetic anisotropy, resulting in a better stress-impedance effect.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2024)
Article
Materials Science, Multidisciplinary
Hao Yu, Xin Kou, Xueqing Zuo, Ding Xi, Haijun Guan, Pengfei Yin, Lijia Xu, Yongpeng Zhao
Summary: Metal-organic frameworks derived composites are promising EMW absorbers. Cation substitution can improve their absorption performance by regulating morphology and atomic space occupation. However, the mechanisms of how cation substitution affects EMW absorption performance are still not well understood. In this study, imidazolic MOFs were fabricated and tailored by cation substitution strategy to prepare porous composites. The samples showed optimal reflection loss and effective absorption bandwidth values under low filling rate and thin thickness conditions. The intercoupling between multiple atoms and the porous structure introduced by cation substitution contribute to the improved absorption performance.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2024)
Article
Materials Science, Multidisciplinary
Lina Wang, Peiyi Yan, Huairui Chen, Zhuo Li, Shu Jin, Xiaoxiang Xu, Jun Qian
Summary: The narrow bandgap semiconductor MgIn2S4 has been grown onto In2O3 nanofibers using an in situ growing method. The resulting MgIn2S4-In2O3 hybrid nanofibers exhibit strong visible light absorption and intimate MgIn2S4/In2O3 heterointerfaces, leading to highly efficient photocatalytic disinfection of Escherichia coli.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2024)