Article
Chemistry, Physical
A. Coyne-Grell, J. Blaizot, S. Rahimi, I. Violatos, S. Nouveau, C. Dumont, A. Nicolay, N. Bozzolo
Summary: This study investigates the recrystallization mechanisms in different grain populations of the Ni-based superalloy AD730. The results show that the local microstructure affects the operative recrystallization mechanism, leading to different mechanisms in the deformed and recrystallized regions. The interaction of recrystallization with precipitates plays a central role in dynamic recrystallization.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Physical
Hsin-Li Liang, Che-Wei Tsai, Sheng Guo
Summary: This study successfully designed corrosion-resistant CoCrFeMoNi HEAs with single-phase structure using two strategies, and validated the effectiveness of these methods through thermal stability. The corrosion resistance of these HEAs was found to be competitive compared to Hastelloy C276.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Physical
Jayshri Dumbre, Shravan K. Kairy, Elaf Anber, Timothy Langan, Mitra L. Taheri, Thomas Dorin, Nick Birbilis
Summary: Scandium (Sc) containing Al-Si model alloys were heat-treated to form (Al,Si)(3)Sc phase at 350 degrees C and V-phase (AlSc2Si2) at above 450 degrees C. The hardening of the alloys was attributed to the coherent nanoscale (Al,Si)(3)Sc precipitates, while significant softening was observed due to the formation of coarse V-phase. The V-phase was found to have a rod morphology and six new orientation relationships with the alpha-Al matrix were determined using TEM.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Physical
Jungwan Lee, Hyojin Park, Sujung Son, Takayoshi Nakano, Hyoung Seop Kim
Summary: Heterostructuring is used to improve the mechanical performance of metallic materials. This study introduces "dynamic heterostructuring" through hot rolling, which is different from the traditional "static heterostructuring" by cold rolling and annealing. The dynamic recrystallization during hot rolling enhances strain hardening and increases the yield strength of the alloy.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Materials Science, Multidisciplinary
Qingchun Zhu, Yangxin Li, Huan Zhang, Xixi Qi, Xiaoqin Zeng
Summary: This study investigated the evolution behaviors of beta' phases in Mg-RE based alloys, revealing that beta(s)' and beta(l)' phases can transform into different phases during ageing at 225 degrees C. Density functional theory calculations were used to rationalize the evolution behaviors, providing guidance for controlling the structure and distribution of precipitates in Mg-RE based alloys.
Article
Chemistry, Physical
M. S. Chang, M. A. A. Mohd Salleh, D. S. C. Halin, M. I. I. Ramli, H. Yasuda, K. Nogita
Summary: This paper investigates the effect of minor addition of Ni on the beta-phase evolution in an In-35 wt%Sn alloy during solidification and provides detailed observations of microstructure evolution and thermal properties.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Physical
Paul M. Souza, Giribaskar Sivaswamy, Aurik Andreu, Salaheddin Rahimi
Summary: Secondary hot-working is crucial for microstructural modification of dual phase titanium alloys to tailor mechanical properties. However, industrial scale manufacturing often poses challenges due to a narrow processing window. Cyclic thermal treatment (CTT) is emerging as a potential technology for microstructure modification in Ti-6Al-4V, reducing mechanical work in the alpha + beta region. This study summarizes the CTT investigations conducted on wrought Ti-6Al-4V alloy to develop different initial microstructures and incorporates a JMAK model into DEFORM (R) software for microstructure evolution prediction.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Physical
Anna Veverkova, Dalibor Preisler, Mariia Zimina, Tereza Kosutova, Petr Harcuba, Milos Janecek, Josef Strasky
Summary: This study aimed to design new Zr alloys with improved mechanical properties for nuclear applications by applying guidelines for Ti alloys development. By thorough characterization and thermal processing, duplex microstructures with primary alpha phase particles surrounded by lamellar alpha + beta structure were achieved, resulting in ultimate tensile strength exceeding 700 MPa, surpassing commercial Zr alloys for nuclear applications by more than 50%. Such strength improvement compensates for increased neutron absorption cross-section.
Article
Metallurgy & Metallurgical Engineering
Nikunj Patel, Sunil Manani, Ajaya Kumar Pradhan
Summary: Al-Zn-Mg-Cu alloys were prepared using the gravity die-casting process, and the influence of copper addition on microstructure, mechanical and thermal properties was studied. Copper addition improved the hardness and tensile strength of the alloys, but excessive precipitates resulted in a decrease in hardness.
INTERNATIONAL JOURNAL OF METALCASTING
(2023)
Article
Engineering, Manufacturing
Pengjie Wang, Guangming Cao, Yuqi Mao, Xiang Ji, Zhenyu Liu
Summary: Three high manganese austenitic steels were prepared with different recrystallization annealing times to study their high-cycle fatigue behavior at 77 K. The fatigue strength at 77 K increased from 512 MPa to 625 MPa as the recrystallization annealing time decreased. Decreased annealing time resulted in grain refinement and increased dislocation density. Grain refinement delayed crack initiation and prevented crack propagation, while dislocation density increase promoted the formation of nanoscale voids, leading to stress relaxation and improved fatigue performance.
JOURNAL OF MANUFACTURING PROCESSES
(2023)
Article
Materials Science, Multidisciplinary
Hsueh-Chuan Hsu, Shih-Ching Wu, Yang-Jhe Su, Wen-Fu Ho
Summary: The study found that water-quenching and 400°C aging treatment are optimal for improving the bending strength/modulus ratio of Ti-5Nb-5Mo alloy, making it suitable for orthopedic and dental applications.
MATERIALS TODAY COMMUNICATIONS
(2021)
Article
Chemistry, Physical
A. Semenyuk, M. Klimova, D. Shaysultanov, G. Salishchev, S. Zherebtsov, N. Stepanov
Summary: The addition of nitrogen to a CoCrFeMnNi high-entropy alloy improves its structure and mechanical properties, enhancing strength and ductility. Subsequent annealing can further optimize the material's performance.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Physical
E. A. Naumova, S. O. Rogachev, R. Sundeev
Summary: High-pressure torsion (HPT) was used to study the influence on phase composition, structure, and properties of Al-18% Ca alloy containing Al4Ca intermetallic. Results show that even after 5 turns of HPT, the additional hardening does not exceed 30-40 HV. The Al4Ca intermetallic undergoes noticeable plastic deformation with subgrain sizes predominantly in the range of 10-50 nm.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Physical
Daniel Irmer, Charbel Moussa, Lisa T. Belkacemi, Mohamed Sennour, Alan Vaissiere, Vladimir A. Esin
Summary: The effect of cold rolling on the precipitation kinetics of the hardening phase was investigated in AA2024. Cold rolling induced faster coarsening kinetics and nucleation/growth of the S-phase, resulting in lower hardness of pre-deformed AA2024-T8 compared to the undeformed state. Cold rolling also led to a fine and homogeneous distribution of hardening precipitates and a different aspect ratio of S-phase precipitates. These findings may be applicable to other precipitation-hardened alloys as well.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Engineering, Mechanical
Ye Tian, Hang Zhao, Rui Yang, Haijun Zhang, Miao Yu, Ping Zhou, Hua Li, Xiuyong Chen
Summary: This study investigated the cavitation erosion performance of two copper alloys in deionized water and artificial seawater, and found that different failure mechanisms occurred in different media.
TRIBOLOGY INTERNATIONAL
(2022)
Article
Chemistry, Physical
Yulai Gao, Shengjuan Li, Bingge Zhao, Qijie Thai, Adrian Lita, Naresh S. Dalal, Harold W. Kroto, Steve F. A. Acquah
Article
Multidisciplinary Sciences
Bingge Zhao, Linfang Li, Qijie Zhai, Yulai Gao
CHINESE SCIENCE BULLETIN
(2014)
Article
Multidisciplinary Sciences
Bingge Zhao, Weipeng Zhang, Changdong Zou, Qijie Zhai, Steve F. A. Acquah, Yulai Gao
CHINESE SCIENCE BULLETIN
(2014)
Article
Chemistry, Physical
Shi Jia, Tingting Song, Bingge Zhao, Qijie Zhai, Yulai Gao
JOURNAL OF ALLOYS AND COMPOUNDS
(2014)
Article
Materials Science, Multidisciplinary
Kefeng Li, Changjiang Song, Qijie Zhai, Mihai Stoica, Juergen Eckert
JOURNAL OF MATERIALS RESEARCH
(2014)
Article
Materials Science, Multidisciplinary
Dong Liang, Zhuyuan Liang, Qijie Zhai, Gui Wang, David H. StJohn
Article
Nanoscience & Nanotechnology
Changjiang Song, Wei Lu, Ke Xie, Yunhu Zhang, Wenbing Xia, Ke Han, Qijie Zhai
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2014)
Article
Engineering, Chemical
Changjiang Song, Kefeng Li, Ke Xie, Wei Lu, Shichao Zhao, Qingyou Han, Qijie Zhai
Article
Metallurgy & Metallurgical Engineering
Wei-peng Zhang, Chang-dong Zou, Bing-ge Zhao, Qi-jie Zhai, Yu-lai Gao
TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA
(2014)
Article
Multidisciplinary Sciences
J. Tan, G. Wang, Z. Y. Liu, J. Bednarcik, Y. L. Gao, Q. J. Zhai, N. Mattern, J. Eckert
SCIENTIFIC REPORTS
(2014)
Proceedings Paper
Metallurgy & Metallurgical Engineering
Liang Bai, Honggang Zhong, Bo Wang, Qijie Zhai, Jieyu Zhang
5TH INTERNATIONAL SYMPOSIUM ON HIGH-TEMPERATURE METALLURGICAL PROCESSING
(2014)
Proceedings Paper
Nanoscience & Nanotechnology
Jing Zhao, Honggang Zhong, Zhichen Zhang, Jieyu Zhang, Qijie Zhai
TMS 2014 SUPPLEMENTAL PROCEEDINGS
(2014)
Proceedings Paper
Nanoscience & Nanotechnology
Feifei Sun, Huigai Li, Jieyun Chen, Shaobo Zheng, Qijie Zhai
TMS 2014 SUPPLEMENTAL PROCEEDINGS
(2014)
Proceedings Paper
Nanoscience & Nanotechnology
Wei Lu, Yang Yang, Kexie, Changjiang Song, QijieZhai
TMS 2014 SUPPLEMENTAL PROCEEDINGS
(2014)
Proceedings Paper
Engineering, Manufacturing
Jin Zou, Jian-yun Zhang, De-ping Lu, Qi-jie Zhai
MATERIAL SCIENCE AND ADVANCED TECHNOLOGIES IN MANUFACTURING
(2014)
