Article
Materials Science, Multidisciplinary
Abdul Malik, Yangwei Wang, Huanwu Cheng, Faisal Nazeer, Muhammad Abubaker Khan
Summary: The study investigated the post deformation and damage behavior of an extruded Mg-Zn-Zr alloy under a ballistic impact. Results showed that energy absorption was achieved through twinning induced recrystallization, and the top broad sides of the crater exhibited a change in texture from weak basal to strong prismatic. A revised model for the development of ultra-fine grains near the crater was proposed.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2021)
Article
Materials Science, Multidisciplinary
E. Thronsen, S. Shah, C. Hatzoglou, C. D. Marioara, S. Wenner, S. J. Andersen, B. Holmedal, R. Holmestad
Summary: The evolution of early-stage precipitates in a 7003 aluminium alloy was investigated through artificial ageing. It was found that after 10 minutes of artificial ageing, the hardness of the precipitates decreased and their size increased, indicating the dissolution of the Guinier-Preston (GP) zones. Subsequently, as the ageing time increased, the hardness gradually increased and new precipitate phases appeared. Atomically resolved scanning transmission electron microscopy images of the disputed T' phase were also presented.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Multidisciplinary Sciences
Hwangsun Kim, Howook Choi, Juhyun Oh, Sangmin Lee, Ho Kwon, Eun Soo Park, Sungwoo Lee, Gun -Do Lee, Miyoung Kim, Heung Nam Han
Summary: In this study, the interfacial structure of ri4 precipitates in Al-Zn-Mg alloys is revealed, showing pseudo-periodic steps and bridges. This peculiar interface structure stabilizes the ri4 precipitates by relieving the strain energy. The results provide insights into the nucleation and growth of precipitates and offer a pathway for tailoring the mechanical properties of alloys by controlling their precipitation kinetics.
Article
Materials Science, Multidisciplinary
Yuping Ren, Boshu Liu, Hongbo Xie, Hongxiao Li, Min Jiang, Gaowu Qin
Summary: The precipitation phases in age-hardenable Mg alloys were found to significantly impact the alloy's properties, with the Mg-4 wt%Zn alloy reaching peak hardness at 150 degrees C after 200 h of aging, mainly composed of beta(1)' with small amounts of beta(2)' and beta, showing a hexagonal close-packed (HCP) MgZn2 structure. The thin and long beta(1)' rods were found to dominate the strengthening effect of the Mg-Zn alloy.
MATERIALS TODAY COMMUNICATIONS
(2021)
Article
Nanoscience & Nanotechnology
Liangliang Yuan, Mingxing Guo, Zanyang Liu, Linzhong Zhuang
Summary: A novel thermomechanical processing technique was used to construct a heterogeneous microstructure in Al-Zn-Mg-Cu alloys. This resulted in a cellular bi-modal grain structure with coarse grains surrounded by fine grains, leading to changes in precipitation and deformation behaviors, and significantly improved stiffness compared to alloys with uniform microstructure.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2022)
Article
Nanoscience & Nanotechnology
Yunhe Zheng, Laure Bourgeois, Jian-Feng Nie
Summary: This study investigated the structure of precipitates in Mg-Zn-Al alloys, revealing new structural features and proposing that the rod-shaped precipitates can be described by tiling of different shapes.
SCRIPTA MATERIALIA
(2021)
Article
Engineering, Civil
Muhammad Abubaker Khan, Yangwei Wang, Mohamed A. Afifi, Mohammad Tabish, Muhammad Hamza, Ghulam Yasin, Tahir Ahmad, Wei-Bing Liao
Summary: This study focuses on the newly developed (Al, Zn)(3)Zr precipitates through double aging treatment in an Al-Zn-MgCu alloy and their response to dynamic compression. The results show that the strength of the alloy is increased with an increasing strain rate, and the microstructures change after the dynamic compression.
ARCHIVES OF CIVIL AND MECHANICAL ENGINEERING
(2023)
Article
Chemistry, Physical
Yifan Wang, Yanli Lu, Shiyao Zhang, Haipeng Zhang, Hong Wang, Zheng Chen
Summary: Through TEM and tensile testing, the microstructure of nanoscale precipitates formed in the primary a-Al grains of a cast Al-7Si-Mg alloy during ageing at different temperatures has been systematically investigated. The interactions of dislocations with different types of precipitates were analyzed, revealing the strengthening effects on mechanical properties. The study also discussed the moire fringes and FFT pattern of beta phase, as well as the unique phenomenon of beta phase nucleation and growth on the surface of Si particles.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Physical
P. Emadi, B. Andilab, K. Borodianskiy, C. Ravindran
Summary: The use of lightweight alloys, such as magnesium, is crucial for improving fuel efficiency and reducing emissions in automobiles, as well as increasing the range of electric vehicles. This study investigated the effects of SiC nanoparticles on the microstructure and mechanical properties of Mg-Al-Zn-Mn alloy composites. The addition of SiC resulted in significant grain refinement, more uniform phase dispersion, and improved tensile strength, making it a promising material for strengthening light alloys.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Physical
Mingjun Yang, Kai Li, Haonan Chen, Jicheng Wang, Zhuo Zhang, Ning Yan, Qiang Lu, Xinyue Lan, Tong Yang, Ying Zhang, Gunan Li, Shuyan Zhang, Yong Du
Summary: This study investigated the corrosion process of MgSi nano-precipitates in an Al-Mg-Si alloy using transmission electron microscopy. It was found that coarsened beta' precipitates in the over-aged state were corroded through dissolution of Mg and oxidation of Si, transforming into amorphous SiO2 precipitates. This newly discovered crystalline-to-amorphous phase transformation plays a role in intragranular corrosion behavior, explaining the reduced susceptibility of over-aged Al-Mg-Si alloys to pitting and intergranular corrosion.
APPLIED SURFACE SCIENCE
(2021)
Article
Materials Science, Multidisciplinary
Katarzyna Stan-Glowinska, Amelia Zieba, Lukasz Rogal
Summary: This study investigates the microstructures and mechanical properties of two conventionally cast Al-Mg-Zn base alloys during aging process. The results show that the Ga-bearing alloy exhibits higher hardness and tensile strength, which can be attributed to its higher precipitate number density. In addition, the structure of formed precipitates differs between the two alloys.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Article
Nanoscience & Nanotechnology
Sang-Hwa Lee, Jae-Gil Jung, Sung-Il Baik, David N. Seidman, Min-Seok Kim, Young-Kook Lee, Kwangjun Euh
Summary: The research revealed that the formation and evolution of GPI and GPII zones during natural aging had a significant impact on the mechanical properties of the Al-7.6Zn-2.7Mg-2.0Cu-0.1Zr-0.07Ti alloy. The Zn/Mg atomic ratio, mean radius, number density, and volume fraction of the GP zones also played crucial roles in influencing the mechanical properties of the alloy.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2021)
Article
Chemistry, Physical
D. Zhang, H. C. Jiang, Z. J. Cui, D. S. Yan, Y. Y. Song, L. J. Rong
Summary: The precipitation kinetics in an Al-Zn-Mg alloy is significantly altered by applying tensile/compressive external stress during artificial aging, leading to higher number density of precipitates and peak hardness. Tensile stress delays coarsening of precipitates, hence delaying peak aging and over-aging, while compressive stress accelerates atom diffusion but slightly slows down over-aging due to competitive growth among high-density precipitates.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Multidisciplinary
Bo Pu, Xiaoming Wang, Weibing Li, Jun Feng
Summary: This study investigated the hard projectile perforation of steel plate reinforced concrete walls using numerical and analytical methods. An analytical model was established to describe the five stages of penetration resistance, and the effect of front concrete panel and rear steel plate thickness combinations was studied and analyzed. The equivalent concrete slab thickness was derived, which may be helpful in the design of a protective strategy.
APPLIED SCIENCES-BASEL
(2022)
Article
Nanoscience & Nanotechnology
Kaiyun Xiang, Lipeng Ding, Zhihong Jia, Xiaofang Yang, Qing Liu, Zhang Hao
Summary: The phase transition of the eta-MgZn2 Laves phase from C14 to C15 structure in peak aged Al-Zn-Mg-Cu alloy was studied using atomic resolution high-angle annular dark-field scanning transmission electron microscopy (HAADFSTEM) and density functional theory (DFT) calculations. The formation of a well-ordered C15 structural MgZn2 as an independent precipitate was observed for the first time in the alloy. The C15 structure was found to be transformed from the C14 structure through synchroshear activation and was associated with the formation of twin-like structures and five-fold symmetry twins.
SCRIPTA MATERIALIA
(2022)
Review
Engineering, Environmental
Muhammad Arif, Muhammad Babar, Umair Azhar, Muhammad Sagir, Muhammad Bilal Tahir, Muhammad Asim Mushtaq, Ghulam Yasin, Muhammad Mubashir, Jun Wei Roy Chong, Kuan Shiong Khoo, Pau Loke Show
Summary: This article reviews the latest progress in catalytic nitrogen reduction process (NRR) for ammonia synthesis, focusing on the design and optimization of Mo-based photo/electrocatalysts and the effects of modification strategies on improving NRR efficiency.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Civil
Muhammad Abubaker Khan, Yangwei Wang, Mohamed A. Afifi, Mohammad Tabish, Muhammad Hamza, Ghulam Yasin, Tahir Ahmad, Wei-Bing Liao
Summary: This study focuses on the newly developed (Al, Zn)(3)Zr precipitates through double aging treatment in an Al-Zn-MgCu alloy and their response to dynamic compression. The results show that the strength of the alloy is increased with an increasing strain rate, and the microstructures change after the dynamic compression.
ARCHIVES OF CIVIL AND MECHANICAL ENGINEERING
(2023)
Article
Chemistry, Physical
Saira Ajmal, Anuj Kumar, Ghulam Yasin, Mohammed Mujahid Alam, Manickam Selvaraj, Mohammad Tabish, Muhammad Asim Mushtaq, Ram K. Gupta, Wei Zhao
Summary: In this study, Fe3O4 nanoparticles were loaded onto multiwall carbon nanotubes using a single-step microwave-assisted strategy to form Fe3O4@CNTs composite. The composite exhibited improved oxygen reduction reaction activity, superior cycling stability, and remarkable methanol tolerance, making it a promising catalyst for practical applications.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Materials Science, Multidisciplinary
Wei-Bing Liao, Chen-Hao Xu, Tian-Li Wang, Chuang-Shi Feng, Muhammad Abubaker Khan, Ghulam Yasin
Summary: Nano-structured refractory high-entropy alloy films were prepared and their oxidation behavior and effects on microstructure and mechanical properties were investigated. The films exhibited stable structure and mechanical properties under oxidation conditions up to 400 degrees Celsius.
Article
Chemistry, Physical
Ghulam Yasin, Sajjad Ali, Shumaila Ibraheem, Anuj Kumar, Mohammad Tabish, Muhammad Asim Mushtaq, Saira Ajmal, Muhammad Arif, Muhammad Abubaker Khan, Ali Saad, Liang Qiao, Wei Zhao
Summary: This study develops an atomic-interfacial-regulation approach to fabricate dual single Fe/Co atoms synchronized with both nitrogen/sulfur atoms on defective/graphitic/porous carbon nanosheets. The combination of Fe/Co bridged atomic-sites with N and S coordination promotes charge transfer, lowering the energy barrier of oxygenated reaction-intermediates and improving the reaction kinetics. The Fe,Co/DSA-NSC exhibits improved ORR/OER activity with higher half-wave potential and lower overpotential, and also shows good cycling stability towards zinc-air batteries.
Article
Materials Science, Multidisciplinary
Muhammad Abubaker Khan, Chenhao Xu, Muhammad Hamza, Mohamed A. Afifi, Naeem Akhtar Qaisrani, Huibin Sun, Bin Wang, Waheed Qamar Khan, Ghulam Yasin, Wei -Bing Liao
Summary: An investigation was conducted to study the influence of peak-ageing and double ageing treatments on the precipitation along different grain boundary orientations of an extruded Al-Zn-Mg-Cu alloy. The results showed that the type of grain boundary precipitates varied depending on the grain boundary orientation and treatment. The study provides new insights into engineering the grain boundary precipitates to achieve desired precipitate types and corresponding mechanical properties.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Green & Sustainable Science & Technology
Muhammad Asim Mushtaq, Muhammad Arif, Ghulam Yasin, Mohammad Tabish, Anuj Kumar, Shumaila Ibraheem, Wen Ye, Saira Ajmal, Jie Zhao, Pengyan Li, Jianfang Liu, Ali Saad, Xiaoyu Fang, Xingke Cai, Shengfu Ji, Dongpeng Yan
Summary: Ammonia (NH3) is essential for fertilizer production and serves as a sustainable energy carrier and zero-carbon fuel. However, the current production process is unsustainable and energy-intensive. Electrochemical nitrogen reduction reactions (NRR) are promising alternatives, but still face challenges such as low Faraday efficiency and NH3 yields. This review summarizes the progress and strategies of various NRR electrocatalysts, and emphasizes the need for collaboration between theoretical and experimental studies, advanced characterization techniques, and understanding of the electrocatalytic mechanism for further development.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2023)
Article
Chemistry, Physical
Zhen Shen, Yingsong Yu, Zhiwei Zhao, Muhammad Asim Mushtaq, Qianqian Ji, Ghulam Yasin, Lashari Najeeb Ur Rehman, Xiaochun Liu, Xingke Cai, Panagiotis Tsiakaras, Jie Zhao
Summary: A carbon nanotube-based Ag single-atom catalyst with N, O trans-coordination strategy was developed to inhibit HER, resulting in improved NH3 production.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2023)
Article
Engineering, Environmental
Muhammad Arif, Anuj Kumar, Muhammad Asim Mushtaq, Umair Azhar, Muhammad Sagir, Muhammad Bilal Tahir, Unaiza Talib, Saira Ajmal, Khalid M. Alotaibi, Ghulam Yasin
Summary: In this study, a hierarchical 3D nanostructure composed of CoFeB nanospheres interconnected with reduced graphene oxide (rGO) nanosheets was successfully fabricated for electrocatalytic nitrogen reduction reaction (NRR). The CoFeB@rGO nanostructures exhibited high Faradaic efficiency and NH3 yield rate, comparable to various state-of-the-art electrocatalytic materials. Density functional theory (DFT) simulations confirmed the beneficial effect of the interconnected CoFeB nanospheres and flexible graphene nanosheets in lowering the energy threshold for N2 adsorption and protonation. This study highlights the first example of CoFeB@rGO heterostructures as efficient and pH-universal electrocatalysts for NRR to NH3 synthesis.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Multidisciplinary
Ahmed M. Salama, Mena E. Metry, Ahmed E. Abdelhamid, M. K. Elbisi, Ghulam Yasin, Jun Lu
Summary: In this study, a novel hydrogel nanocomposite incorporating graphene oxide (GO), chitosan nanoparticles (CS NPs), zinc oxide nanoparticles (ZnO NPs), and tannic acid (TA) was synthesized and characterized. The nanocomposite exhibited strong antimicrobial and antiviral activity.
MATERIALS TODAY CHEMISTRY
(2023)
Article
Chemistry, Physical
Ajmal Khan, Zhidong Chang, Wenjun Li, Xiaohui Ma, Mei Dong, Liang Geng, Ghulam Yasin, Shuaib Khan, Hira Anwar
Summary: Due to its functional structure and tunable shape, 2D zeolitic imidazole framework (ZIFs) have gained significant interest in various fields. In this study, thin ZIF-8 sheets were prepared using a mixed solvent and then delaminated into single layers through physical sonication. These hexagonal sheets exhibited high stability and controlled morphology, and showed excellent performance in dye degradation compared to 3D ZIF-8 crystals.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2024)
Article
Chemistry, Physical
Chuang Qiu, Anuj Kumar, Daping Qiu, Mohammad Tabish, Jiapeng Zhang, Zhijie Jiang, Ang Li, Ghulam Yasin, Xiaohong Chen, Huaihe Song
Summary: Sulfur doping in carbon materials is generally considered to enhance initial coulombic efficiency, potassium storage capacity, and reaction kinetics. This study presents the successful preparation of thiophene-sulfur-doped nitrogen-rich porous carbons with different sulfur contents. The results show that thiophene-sulfur doping significantly increases the initial coulombic efficiency and improves the performance of the carbon materials in terms of specific capacity, rate performance, and cycling stability.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Chemistry, Physical
Ali Saad, Olfa Bechambi, Sajjad Ali, Muhammad Asim Mushtaq, Ghulam Yasin
Summary: Metallic surface constituents and partial oxidation significantly influence the structure, morphology, performance, and durability of an electrocatalyst. In this study, a three-dimensional mesoporous electrocatalyst Ni3FeN was designed and optimized through nano-casting and thermal-nitridation processes. The Ni3FeN-420 sample showed good catalytic activity with low overpotential towards oxygen evolution reaction (OER) and excellent durability. Furthermore, the Ni3FeN-420/Pt/C mixture exhibited higher and more stable performance in Zn-air battery compared to benchmark catalysts.
APPLIED SURFACE SCIENCE
(2023)
Article
Chemistry, Physical
Abdullah Flehan, Liu Jinna, Mohammad Tabish, Anuj Kumar, Yusof A. Y. A. Mohammed, Muhammad Mubeen, Mohamed M. Makhlouf, Ghulam Yasin
Summary: This study successfully improved the adhesion and corrosion resistance of the Ce-La film by using poly-dopamine (PDA) as a post-treatment layer. The results showed that PDA healed the cracks and increased the surface roughness and thickness of the conversion coating. Moreover, the PDA-treated Ce-La film became more hydrophobic, leading to enhanced corrosion resistance.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Energy & Fuels
Anuj Kumar, Ram K. Gupta, Mohd Ubaidullah, Abdullah M. Al-Enizi, Bidhan Pandit, Senthilkumar Nangan, V. Jagadeesha Angadi, Ghulam Yasin
Summary: This article reports a hollow mesoporous Fe-graphitic carbon nitride supported on carbon nanotubes (Fe-C3N3@CNTs) as a superior electrocatalyst for the oxygen reduction reaction (ORR) in fuel cells. The Fe-C3N3@CNTs composite showed dominant 4e-ORR pathway, exceptional methanol tolerance, and durability. Theoretical analysis revealed that Fe-C3N3 catalytic moieties facilitated the adsorption and desorption of oxygen, enabling efficient ORR.