Article
Materials Science, Multidisciplinary
Jiheng Li, Zhiguang Zhou, Zhaopeng Han, Zijing Yang, Xiaoqian Bao, Xuexu Gao
Summary: This study investigates the effects of diffusing Dy 36 Cu 64 alloy into the grain boundary phases of Tb-Dy-Fe alloy. The diffusion treatment improves the microstructural and mechanical properties, while minimally impacting the magnetostrictive properties.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2024)
Article
Materials Science, Multidisciplinary
Songyu Yang, Kailin Wang, Qiao Chen, Yan Wu
Summary: Single-atom Ni species deposited onto TiO2/g-C3N4 composite photocatalyst with an S-scheme heterojunction achieved highly efficient photocatalytic water splitting to produce hydrogen. The formation of the S-scheme heterojunction facilitated the combination of photo-excited electrons from TiO2 with photogenerated holes at g-C3N4, while the Ni atoms acted as surface catalytic centers to enhance the reactivity of the photocatalyst. This study provides a new approach for developing noble metal-free heterojunctions for high-performance photocatalysis.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2024)
Article
Materials Science, Multidisciplinary
Hongcai Xie, Zhichao Ma, Wei Zhang, Hongwei Zhao, Luquan Ren
Summary: The dynamic deformation behaviors of equiatomic FeNiCrCoCu high-entropy alloys were investigated using nonequilibrium molecular dynamics simulations. The study found that amorphization transformation facilitates dislocation nucleation and propagation, and different plasticity patterns are observed under different shock velocities. Moreover, a multi-level deformation mode was identified to significantly contribute to shock wave attenuation at a specific shock velocity.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2024)
Review
Materials Science, Multidisciplinary
Weijian Qian, Shengchuan Wu, Liming Lei, Qiaodan Hu, Changkui Liu
Summary: This article reviews the recent progress in material damage mechanism using various in situ testing rigs compatible with laboratory and synchrotron radiation X-ray facilities. Taking metallic alloys and composites as examples, the unique advantages of in situ X-ray three-dimensional tomography in revealing complex failure mechanisms, quantifying crack growth driving forces and crack closure phenomena, and elucidating the strengthening/degrading effects from microstructure and environment on structural material degradation are demonstrated. The ongoing direction of in situ multi-scale visualization and characterization is also discussed.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2024)
Article
Materials Science, Multidisciplinary
Jinhu Hu, Zhengguo Jiao, Xukang Han, Jiao Liu, Mingliang Ma, Jialin Jiang, Yongbo Hou, Xingyue Wang, Chao Feng, Yong Ma
Summary: In this study, FeNi/C nanofibers were prepared by combining the advantages of Fe, Ni metals and one-dimensional carbon materials for electromagnetic microwave absorption. The FeNi/C nanofibers exhibited excellent absorption performance under dielectric/magnetic synergistic effect. The unique microstructure and electromagnetic properties of FeNi/C nanofibers contributed to its superior absorption performance.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2024)
Article
Materials Science, Multidisciplinary
Ruiwen Shu, Lijuan Nie, Ziwei Zhao, Xunhong Yang
Summary: In this work, a three-dimensional composite aerogel material composed of nitrogen-doped reduced graphene oxide, magnesium ferrite, and polyaniline was successfully synthesized. The aerogel exhibited low density, broad bandwidth, and strong absorption capacity. Compared with other materials, this composite aerogel showed better microwave absorbing performance and achieved the maximum absorption bandwidth at a low filling ratio.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2024)
Article
Materials Science, Multidisciplinary
Aming Xie, Zhendong Ma, Ziming Xiong, Weijin Li, Lai Jiang, Qiu Zhuang, Siyao Cheng, Wei Lu
Summary: This study introduces ferrocene units into conjugated microporous polymers to produce magnetic Fe-C nanocomposites without heteroatom doping. The Fe-P-2C composite exhibits excellent absorption properties and reveals the electromagnetic wave absorption mechanism of carbon-based materials.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2024)
Article
Materials Science, Multidisciplinary
Bihan Zhang, Leilei Zhang, Zhongkai Wang, Qian Gao
Summary: An innovative wood-derived carbon-carbon nanotubes-pyrolytic carbon composite material with significant compressive strength, excellent electrical conductivity, thermal stability, and mechanical properties was successfully fabricated. This material opens up a new approach for efficiently fabricating high-performance electronic device composites in high-temperature fields.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2024)
Article
Materials Science, Multidisciplinary
Haoran Sun, Zhigang Ding, Hao Sun, Junjun Zhou, Ji-Chang Ren, Qingmiao Hu, Wei Liu
Summary: The HCSA scheme efficiently and accurately predicts the SFEs of MPEAs by averaging SFEs from small supercells, outperforming traditional DFT calculations. It has been successfully applied to NiFe and Ni 10 Co 60 Cr 25 W 5 alloys, achieving significant error reduction and holding the potential to accelerate materials design and discovery processes.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2024)
Article
Materials Science, Multidisciplinary
Yuanyuan Wang, Chengbao Liu, Zuojun Jiao, Lei Cai, Cong Sun, Deming Wang, Lanyue Cui, Cuie Wen, Rong-Chang Zeng
Summary: This study investigates the corrosion behavior and mechanical properties of an extruded Mg-4Li-1Ca alloy under different micro-compressive stresses. The results show that micro-compressive stress can induce grain growth and precipitation of second-phase particles, accelerating the corrosion rate. However, when the stress level reaches a certain point, the volume fraction of the second phase becomes the dominant factor controlling the corrosion rate, and residual stress is released, forming corrosion product films that weaken the microstructural effect on corrosion behavior.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2024)
Article
Materials Science, Multidisciplinary
Chenhao Wei, Lingzi Shi, Maoqing Li, Mukun He, Mengjie Li, Xinrui Jing, Panbo Liu, Junwei Gu
Summary: In this study, sandwich composites with hollow cavity, multiple hetero-interfaces, and hierarchical structures were fabricated through the cooperative processes of self-sacrifice strategy and sequential hydrothermal reaction. These composites exhibit a wide absorption bandwidth and high absorption intensity, providing a new approach for preparing efficient electromagnetic wave absorbers.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2024)
Article
Materials Science, Multidisciplinary
Qidong Yang, Shuo Yang, Shiyu Ma, Junhan Zhou, Ye Zhou, Rongzheng Huang, Kai Wei, Zhaoliang Qu, Xujing Yang
Summary: This study investigates the microstructures and pore defects of Invar 36 alloy manufactured using laser powder bed fusion (LPBF) with different scanning speeds. The observations reveal the correlation between scanning speed and microstructure, as well as the influence on mechanical properties. In addition, the study evaluates the damage evolution and failure mechanisms through in-situ XCT tensile tests. Understanding the process-structure-property correlation lays the foundation for the widespread application of LPBF-processed Invar 36 alloy.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2024)
Article
Materials Science, Multidisciplinary
Xudong Zhang, Wei Fu, Xiaoguo Song, Liangbo Chen, Zhuolin Li, Shengpeng Hu, Hong Bian
Summary: A double-layered W/Mg structure is formed by ultrasonic-assisted soldering of tungsten heavy alloy and magnesium alloy, serving as a new generation of nuclear radiation shielding material. The microstructure and mechanical properties of the joint are influenced by ultrasonication time, reaching maximum shear strength at 6 seconds.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2024)
Article
Materials Science, Multidisciplinary
Jinmei Sun, Tie Liu, Xiaoyu Guo, Shuang Yuan, Jun Wang, Noriyuki Hirota, Qiang Wang
Summary: The obvious grain refinement of primary MnSb phase has been observed in Mn-89.7 wt% Sb alloy solidified under a high-gradient magnetic field. The refinement can be attributed to the constituent supercooling in front of the solidification interface, which promotes nucleation of the primary MnSb phase, and is linked to the enrichment of Mn solute induced by the magnetic force and the Lorentz force.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2024)
Article
Materials Science, Multidisciplinary
Qiyang Tan, Haiwei Chang, Greta Lindwall, Erlei Li, Ananthanarayanan Durga, Guofang Liang, Yu Yin, Geoff Wang, Ming-Xing Zhang
Summary: This study investigates the mechanism of TiN in refining gamma-austenite in additive manufacturing of 316 stainless steel and its impact on the mechanical behavior. Experimental results show that the addition of TiN nanoparticles can lead to complete columnar-to-equiaxed transition and significant grain refinement. Thermodynamic and kinetic simulations confirm that TiN promotes the heterogeneous nucleation of 8-ferrite, which in turn refines the gamma-austenite. The high grain refining efficiency of TiN nanoparticles is verified in an Fe-4 wt.%Si 8-ferrite alloy. The grain refinement not only eliminates anisotropy but also improves the strength-ductility synergy in the 316 steel.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2024)
Article
Materials Science, Multidisciplinary
Wanjia Li, Wangchang Li, Yao Ying, Jing Yu, Jingwu Zheng, Liang Qiao, Juan Li, Shenglei Che
Summary: In this study, a high resistance oxide interface engineering was constructed to achieve the combination of high saturation magnetization and high resistivity in a newly Fe-N based magnetic material. The research findings are of great significance for the development of the next generation of soft magnetic materials.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2024)
Article
Chemistry, Physical
J. S. Zuback, T. A. Palmer
Summary: By adjusting the alloying elements and nitrogen content, the formation of niobium-rich 6-phase precipitates in additively manufactured Inconel 625 during high temperature exposure can be suppressed. Hot isostatic pressing can improve niobium distribution and reduce 6-phase formation.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Arpit Agrawal, Sam Bakhtiari, Reza Mirzaeifar, Daqiang Jiang, Hong Yang, Yinong Liu
Summary: This paper reports a comparative study on the amorphization of B2 structure of different equiatomic binary alloys. The study findings suggest that anti-site defects can cause severe random distortions to the B2 structures, leading to a decrease in crystalline ordering. Among the four alloys studied, NiTi and CuZr can be fully amorphous at a threshold concentration of anti-site defects, while AlFe and FeTi cannot. The ease of amorphization is higher in NiTi compared to CuZr, in terms of both the required defect concentration and temperature range.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Sudhansu Sekhar Hota, Debasish Panda, Ram Naresh Prasad Choudhary
Summary: The main objective of this research is to investigate the effect of adding potassium/tungsten on the characteristics of eco-friendly BiFeO3 and assess its potential applications. The results show that the addition of K/W transforms the structure of bismuth ferrite and the material exhibits high dielectric constant and low tangent loss. This indicates potential capacitive and ferroelectric properties.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Fateme Yoosefan, Ali Ashrafi, Seyed Mahmoud Monir Vaghefi
Summary: The high-entropy CoCrFeMoNi alloy exhibits remarkable strength, flexibility, and corrosion resistance. This study investigates its corrosion and tribocorrosion behavior. The cold-rolled samples show enhanced corrosion resistance due to their fine-grained microstructure and elevated hardness. However, increasing annealing temperatures reduce the corrosion resistance. The tribological performance demonstrates significant tribocorrosion resistance in all high-entropy alloy samples, and the reprotective layer in the annealed samples exhibits higher resistance.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
