Article
Chemistry, Physical
Yue Liu, Xiangshuai Zhao, Jing Li, Laxman Bhatta, Kaiguang Luo, Charlie Kong, Hailiang Yu
Summary: The study found that as the rolling reduction ratio of the aluminum alloy sheets increased, the various strengthening mechanisms of the material gradually approached a limiting value, thereby reducing the difference in tensile strength between samples tested at room temperature and cryogenic temperature.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Biochemistry & Molecular Biology
Toyoto Sato, Hiroyuki Saitoh, Reina Utsumi, Junya Ito, Yuki Nakahira, Kazuki Obana, Shigeyuki Takagi, Shin-ichi Orimo
Summary: In this study, the hydrogen absorption reaction of LaNi5 under high pressures above 1 GPa was investigated, and it was found that LaNi5 absorbed 2.07% hydrogen at 6 GPa, indicating a higher hydrogen storage capacity compared to reactions below 1.0 MPa. Additionally, the hydrogen-absorbed LaNi5Hx decomposed into NiH under high-pressure conditions, and a new hydride phase with different crystal parameters was observed.
Article
Chemistry, Physical
Xucheng Wang, Yu Liu, Yuanchun Huang
Summary: This study systematically investigated the performance and microstructure characterization of cryogenic rolling (CR) and room-temperature rolling (RTR) Al-Mg-Si alloys. The results showed that the hardness of CR alloys decreased at the early aging stage, while the hardness of RTR alloys increased. Retrogression phenomena were observed in CR alloys, and the degree of recrystallization was inferior to RTR alloys. After aging for 50 hours, the strength and precipitates' density in CR 75 alloy were higher, indicating that the substructures were beneficial to precipitation and precipitate growth.
Article
Chemistry, Physical
Zhibo Liu, Yaojun Lin, Zhigang Yan, Manping Liu, Xiaochun Liu, Jiani Sun, Hans J. Roven
Summary: In this study, a strategy of strengthening Al-10wt%Mg binary alloy via heavy cryogenic rolling at liquid nitrogen temperature was proposed. The combination of cryogenic plastic deformation and a high concentration of Mg solute effectively enhanced the strength and ductility of the alloy, providing a new avenue for non-age-hardened Al-Mg alloys to achieve ultrahigh strength and good ductility.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Physical
Rama Srinivas Varanasi, Motomichi Koyama, Hiroyuki Saitoh, Reina Utsumi, Toyoto Sato, Shin-ichi Orimo, Eiji Akiyama
Summary: The phase transformations and microstructure changes during the depressurization of non-hydrogenated and hydrogenated Fe-Mn-Si-Cr alloy were investigated. Understanding the effects of hydrogenation on the stability of the austenite phase in Fe-based alloys is crucial.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Materials Science, Multidisciplinary
Patricia Freitas Rodrigues, Hatim Reshie, Talita Gama de Sousa, Andersan dos Santos Paula, Francisco Manuel Braz Fernandes, Ritwik Basu
Summary: This study conducted a detailed microstructural analysis during the fabrication stages of NiTi orthodontic archwire, focusing on phase transformation characteristics. Different sample conditions were prepared and studied using electron back-scattered diffraction and synchrotron radiation X-ray diffraction techniques. The results showed variations in microstructures in terms of local misorientation and grain boundary fractions, with possible precipitation of Ni4Ti3 and Ni3Ti observed. The transformation temperatures, Ms and Mf, were found to be influenced by factors such as grain boundary fractions and stored energy, affecting the driving force for phase transformation.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2021)
Article
Materials Science, Multidisciplinary
Xucheng Wang, Yongxing Zhao, Yu Liu, Yuanchun Huang
Summary: This paper investigates the effect of artificial aging on the mechanical properties and microstructures of cryogenic rolled Al-Mg-Si sheet. It was found that while the hardness and yield strength of cryogenic rolled alloys decrease at the early aging stage, those of room temperature rolled alloys increase. Additionally, cryogenic rolled alloys exhibit substructures and lower degree of recrystallization compared to room temperature rolled alloys. A proposed precipitation mechanism and model explain the difference in strength and precipitation strengthening between cryogenic rolled alloys and room temperature rolled alloys.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Chemistry, Physical
J. Fiocchi, A. Mostaed, M. Coduri, A. Tuissi, R. Casati
Summary: This study investigates the improvement of mechanical behavior of high entropy alloys (HEAs) through dedicated thermal treatments, which produce nanostructured microstructures with enhanced characteristics. Advanced characterization techniques reveal the decomposition of the supersaturated solid solution in an equiatomic CoCuFeMnNi alloy, leading to the formation of Cu-rich clusters and discs. The modulation of composition significantly enhances the mechanical strength, and the ageing treatment improves the mechanical behavior of the alloy at cryogenic temperatures.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Physical
R. Utsumi, M. Morimoto, H. Saitoh, T. Watanuki, T. Sato, S. Takagi, S. Orimo
Summary: The researchers synthesized metal hydrides comprising only metals with low hydrogenation affinity which cannot form metal hydrides below 1 GPa. By clarifying the hydrogenation reaction processes of FexMo1-x alloys, they were able to classify the reaction process into three types and synthesize two novel hydrides, one of which has metal elements at the vertices of hexagonal close-packed lattices.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Review
Metallurgy & Metallurgical Engineering
Youhong Peng, Kesong Miao, Wei Sun, Chenglu Liu, Hao Wu, Lin Geng, Guohua Fan
Summary: Characterizing the microstructure and deformation mechanism of metallic materials is crucial for understanding the microstructure-property relationship. Advanced synchrotron radiation facilities have enabled non-destructive visualization of full-field structural information in three dimensions, contributing to significant progress in recent decades. Future innovations in next-generation synchrotron radiation and emerging technologies hold great potential for further advancements in material characterization.
ACTA METALLURGICA SINICA-ENGLISH LETTERS
(2022)
Article
Nanoscience & Nanotechnology
Yunwei Pan, Anping Dong, Yang Zhou, Dafan Du, Donghong Wang, Guoliang Zhu, Baode Sun
Summary: The introduction of gamma '' precipitates in V-containing CoCrNi-based alloy results in superior strength-ductility synergy, with a combination of ultimate-tensile-strength and elongation similar to 51.8 GPa.%, and yield-strength similar to 890.6 MPa. The use of synchrotron XRD was able to identify the presence of gamma '' phase in these alloys, with a moderate gamma ''/gamma lattice misfit providing a good combination of coherency-strengthening and coarsening-resistance.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2021)
Article
Nanoscience & Nanotechnology
N. B. Zhang, Y. Y. Zhang, S. Chen, B. B. Zhang, Z. L. Li, H. L. Xie, L. Lu, X. H. Yao, S. N. Luo
Summary: This study investigates the onset of detwinning in magnesium alloy Mg-3Al-1Zn under continuous loading using real-time in situ synchrotron X-ray diffraction. The results reveal that detwinning of the {10 (1) over bar2} extension twins occurs immediately upon unloading, regardless of whether the twins are activated by tension parallel to or compression perpendicular to the c-axis fibers.
SCRIPTA MATERIALIA
(2021)
Article
Materials Science, Multidisciplinary
Jiaoyan Dai, Chengpeng Liu, Shuaiqi Fan, Xiang-Xi Ye
Summary: In this work, high throughput samples of Cu-xIn (x = 0-5 wt.%) alloy were prepared using spark plasma sintering to investigate the effects of In content on the microstructure and properties of Cu alloys. The results showed that the concentration of In element distributed linearly in Cu alloy and existed as solid solution atoms in the Cu matrix. Precipitation of Cu9In4 particles at grain boundaries occurred when the In content was higher. The increase in In content led to an increase in hardness and a decrease in conductivity due to hindrance from solid solution atoms, grain boundaries, and Cu9In4 particles.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Materials Science, Multidisciplinary
Tay Sparks, Duc Nguyen-Manh, Pengfei Zheng, Damian Sobieraj, Michael Gorley, Thomas Connolley, Christina Reinhard, Yiqiang Wang, Biao Cai, Jan S. Wrobel
Summary: This study investigated the mechanical properties of the vanadium base alloy V-4Cr-4Ti using in-situ high energy X-ray diffraction, and calculated its polycrystalline elastic properties and Zener anisotropy. The results are valuable for further assessing the suitability of V-4Cr-4Ti as a structural material.
JOURNAL OF NUCLEAR MATERIALS
(2022)
Article
Environmental Sciences
Xingwen Lu, Zebiao Huang, Zhihong Liang, Zhe Li, Jiani Yang, Yujie Wang, Fei Wang
Summary: This study investigated the influence of Cu and Zn on the precipitation of struvite, showing that the addition of Cu and/or Zn can disrupt the crystalline growth of struvite and promote the formation of amorphous phases. When Cu and Zn coexisted, there was competitive binding of PO4 between the two metals. Overall, the presence of Cu and Zn during struvite formation greatly affects its content by forming different metal-containing products.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Nanoscience & Nanotechnology
Shaojian Zhang, Rengeng Li, Huijun Kang, Zongning Chen, Wei Wang, Cunlei Zou, Tingju Li, Tongmin Wang
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2017)
Article
Engineering, Mechanical
Cunlei Zou, Zongning Chen, Huijun Kang, Wei Wang, Rengeng Li, Tingju Li, Tongmin Wang
Article
Materials Science, Multidisciplinary
Fenfen Yang, Huijun Kang, Enyu Guo, Rengeng Li, Zongning Chen, Yanhua Zeng, Tongmin Wang
Article
Nanoscience & Nanotechnology
Minqiang Gao, Zongning Chen, Huijun Kang, Rengeng Li, Wei Wang, Cunlei Zou, Tongmin Wang
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2018)
Article
Materials Science, Multidisciplinary
Wei Wang, Enyu Guo, Zongning Chen, Huijun Kang, Zhongjun Chen, Cunlei Zou, Rengeng Li, Guomao Yin, Tongmin Wang
MATERIALS CHARACTERIZATION
(2018)
Article
Chemistry, Multidisciplinary
Cunlei Zou, Zongning Chen, Enyu Guo, Huijun Kang, Guohua Fan, Wei Wang, Rengeng Li, Siruo Zhang, Tongmin Wang
Article
Chemistry, Physical
Rengeng Li, Enyu Guo, Zongning Chen, Huijun Kang, Wei Wang, Cunlei Zou, Tingju Li, Tongmin Wang
JOURNAL OF ALLOYS AND COMPOUNDS
(2019)
Article
Materials Science, Multidisciplinary
Minqiang Gao, Zongning Chen, Huijun Kang, Enyu Guo, Rengeng Li, Ying Fu, Honglan Xie, Tongmin Wang
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2019)
Article
Nanoscience & Nanotechnology
Rengeng Li, Siruo Zhang, Cunlei Zou, Huijun Kang, Tongmin Wang
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2019)
Article
Nanoscience & Nanotechnology
Siruo Zhang, Huijun Kang, Rengeng Li, Cunlei Zou, Enyu Guo, Zongning Chen, Tongmin Wang
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2019)
Article
Nanoscience & Nanotechnology
Xiong Yang, Zhou Jiang, Huijun Kang, Zongning Chen, Enyu Guo, Daquan Liu, Fenfen Yang, Rengeng Li, Xue Jiang, Tongmin Wang
ACS APPLIED MATERIALS & INTERFACES
(2020)
Article
Chemistry, Physical
Hao Wang, Haoyi Niu, Hao Wu, Rengeng Li, Guohua Fan
Summary: This study investigates the plastic deformation behavior of the ring-rolled GH4169 alloy at the micro level through in situ tensile tests. The results show that the fraction of low-angle grain boundaries increases gradually during tensile deformation, and the misorientation evolution within the grain interior is severely inhomogeneous. Most of the slip system activation coincides with the Schmid law.
Article
Materials Science, Multidisciplinary
Yin Yang, Gui Kuang, Rengeng Li
Summary: Cu-0.4Cr alloys with microalloying of Hf and a modified rolling-aging process showed improved mechanical properties, including high strength, high electrical conductivity, and high ductility. The microstructures of the alloys were characterized by transmission electron microscopy and X-ray line broadening analysis. The Cu-Cr-Hf alloy with reduced Hf content exhibited good combination of strength, electrical conductivity, and ductility.
Article
Engineering, Multidisciplinary
Yichen Lu, Zongning Chen, Enyu Guo, Xiangqing Kong, Huijun Kang, Yanjin Xu, Rengeng Li, Guohua Fan, Tongmin Wang
Summary: This study characterized the real 3D model of the feather shaft composed of medulla and cortex using X-ray computer tomography and conducted compression and tensile tests to evaluate mechanical performance. The presence of medulla enhances shaft stability in axial compression, and the cortex shows anisotropic tensile properties along the shaft axis.
CMES-COMPUTER MODELING IN ENGINEERING & SCIENCES
(2021)