Article
Chemistry, Physical
Chenzeng Zhang, Cunguang Chen, Pei Li, Mengjie Yan, Qian Qin, Fang Yang, Wenwen Wang, Zhimeng Guo, Alex A. Volinsky
Summary: Powder metallurgy Cu-30Fe alloy was prepared using mechanical alloying, pressureless sintering, and rolling processes. The rolling process affected the alloy microstructure and physical properties. The Fe particles became elongated and changed shape, while the Cu grains became elongated and refined. The coordinated deformation of the Cu and Fe phases resulted in finer Cu grains near the Fe particles. After annealing, the cold-rolled Cu-30Fe alloy achieved a good combination of mechanical and functional properties.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Materials Science, Multidisciplinary
Jing Xia, Shaopeng Liu, Bing Zhang, Yungui Chen
Summary: The study on titanium alloys shows that analyzing sintering parameters using central composite designs can improve mechanical properties and sintering density. By using response surface methodology, the optimal sintering parameters were determined and verification experiments showed high reliability.
Article
Materials Science, Multidisciplinary
Tao Wang, Yufeng Huang, Yunzhu Ma, Lei Wu, Huanyuan Yan, Chao Liu, Yang Liu, Bing Liu, Wensheng Liu
Summary: Through cold rolling deformation, the microstructure of P/M aluminum alloy gradually transforms, with reduced grain size, increased relative density, and enhanced tensile strength. The improved mechanical properties mainly result from the combined effects of increased microstructural compactness and deformation strengthening.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2021)
Article
Chemistry, Physical
Harish Kumar Adigilli, Kolan Madhav Reddy, Yixuan Hu, Rajamallu Karre, P. V. V. Srinivas, K. Guruvidyathri, Anirudha Karati, V. S. Hariharan, P. Suresh Babu, A. K. Pandey, Joydip Joardar
Summary: Nanostructured two-dimensional WS2 reinforced Al-4Cu alloy matrix composites were prepared using spark plasma sintering, resulting in the formation of Al-W-Cu ternary phase at the grain boundaries and increased hardness in the composite material. High-resolution transmission electron microscopy and scanning TEM were utilized to confirm the structure and characteristics of the ternary phase, as well as the in situ formation mechanism.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Physical
Hengchao Shi, Longchen Duan, Songcheng Tan, Xiaohong Fang
Summary: The mechanical properties and microstructure characteristics of Fe-Cu based metal matrix composites are influenced by Fe/Cu ratio and molten state contents. Mechanical properties initially increase with decreasing Fe/Cu ratio, but sharply drop when Cu becomes the main component, with the best performance at a Fe/Cu ratio of 7:3. The effects of Fe/Cu ratio are also reflected in the strength of bonding interfaces, with Fe-Fe, Fe-Cu, and Cu-Cu interfaces in descending order of strength.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Physical
Xiaofeng Li, Ao Fu, Yuankui Cao, Shenghang Xu, Shenghan Gao
Summary: By introducing carbides into the TiNbTaZrHf based composite, it exhibits ultra-high yield strength at room temperature and maintains high strength at high temperatures. However, the strength decreases significantly as the temperature rises, mainly due to the weakening of load-bearing effect and interfacial debonding between the matrix and carbides.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Materials Science, Multidisciplinary
Elvan Buyukkayaci, Ijlal Simsek, Dursun Ozyurek
Summary: This study investigated the influence of mechanical alloying time on microstructure and wear behavior of Fe-Cu-C alloy produced with powder metallurgy method. It was found that 60 minutes of mechanical alloying time resulted in the highest density and hardness values in the Fe-Cu-C alloy. Additionally, the study showed that the highest weight loss in wear tests occurred in specimens with 120 minutes of mechanical alloying, while the lowest weight loss was observed in specimens with 60 minutes of mechanical alloying.
METALS AND MATERIALS INTERNATIONAL
(2021)
Article
Materials Science, Multidisciplinary
Qinyang Zhao, Yongnan Chen, Yiku Xu, Rob Torrens, Leandro Bolzoni, Fei Yang
Summary: A short-time processing route has been designed to manufacture cost-affordable and high-quality powder metallurgy (PM) metastable beta titanium alloy, achieving homogeneous macrostructure and fine-grain microstructure. The alloy demonstrates synergistic strength-ductility combinations after specific processing and heat treatment, with comparable or even better performance than other alloys prepared by traditional methods.
MATERIALS & DESIGN
(2021)
Article
Chemistry, Physical
Guo-Jiun Shu, Cun-Jheng Huang, Wei-Xiang Chien, Pei Wang, Ming-Wei Wu
Summary: The powder metallurgy process was successfully used to manufacture two Fe-based laminated metal composites, showing good performance and demonstrating feasibility in production.
Article
Materials Science, Multidisciplinary
Ahmad Farrahnoor, Hussain Zuhailawati
Summary: By varying the content of HA in titanium-niobium-hydroxyapatite composite, the bioactivity of the material can be adjusted, with the most significant impact observed at 15% HA content. The decomposition of HA was found to enhance bioactivity, and the formation of apatite on the surface of the composite accelerated this process.
MATERIALS TODAY COMMUNICATIONS
(2021)
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
Shaopeng Li, Xiaoyan Wang, Zichao Wei, Yuanfei Han, Huigang Shi, Jianwen Le, Guangfa Huang, Di Zhang, Weijie Lu
Summary: This study proposes a technique to overcome the strength-ductility mismatch of sintered titanium matrix composites by in-situ planting TiB nano-fibers and La2O3 nano-particles. By fabricating (TiB+La2O3)/Ti composites with excellent strength-ductility synergy, the ultra-fine network and fine-grain effect improved the elongation and ultimate tensile strength. The strength-ductility synergy effects were attributed to fine-grain effects and the synergistic effect between nanoreinforcements and the matrix. This work opens up a new route for sintering nanoparticles reinforced titanium matrix composites components with promising properties.
SCRIPTA MATERIALIA
(2022)
Article
Materials Science, Multidisciplinary
Huan Luo, Jianbo Li, Junliu Ye, Yangfan Lu, Jun Tan, Jiangfeng Song, Xianhua Chen, Kaihong Zheng, Fusheng Pan
Summary: In this study, magnesium matrix composites reinforced by Ti-6Al-4V particles were prepared via powder metallurgy. Tensile tests showed that the mechanical properties of the composites reached peak values when the content of Ti-6Al-4V particles was 5 wt%. Digital image correlation technology was used to investigate the strain distribution, revealing that the introduction of Ti-6Al-4V reinforcement could relieve stress concentration and result in composites with high strength and high plasticity.
MATERIALS CHARACTERIZATION
(2022)
Article
Materials Science, Multidisciplinary
Veysel Erturun, Sezer Cetin, Oguzhan Sahin
Summary: The study improved aluminum alloys through mechanical alloying and investigated the effects of zinc on the microstructure. Analysis of alloys with different alloying times was conducted using various methods, leading to the production of high-quality aluminum alloy billets.
METALS AND MATERIALS INTERNATIONAL
(2021)
Article
Materials Science, Multidisciplinary
Ali Ajani, Hussain Gilani, Sumaiya Islam, Neamul Khandoker, Abdul Md Mazid
Summary: The study focuses on manufacturing CNT-reinforced surface composites of aluminum alloy using friction stir processing, achieving high strength and ductility. Scanning electron microscopy revealed the fracture surface morphology, and the highest temperature rise during FSP did not lead to melting of the material.
