Article
Materials Science, Multidisciplinary
Kyle Tsaknopoulos, Jack Grubbs, Bryer C. Sousa, Matthew Siopis, Aaron Nardi, Danielle L. Cote
Summary: Metal additive manufacturing is a constantly developing approach. This study investigates the use of alloys designed for AM in solid-state processing and proposes methods to improve processing performance through heat treatment and parameter optimization.
MATERIALS & DESIGN
(2022)
Article
Chemistry, Physical
M. Khomutov, A. Chereshneva, P. Petrovskiy, D. Daubarayte, V Cheverikin, A. Sova, A. Travyanov, I Smurov
Summary: Cold spraying was utilized for the deposition of AlMgScZr alloy with low-porosity deposits successfully produced. Heat treatment and hot isostatic pressing (HIP) were performed to homogenize the structure, leading to significant improvement of ultimate compressive strength and the strain at failure of the deposits.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Materials Science, Multidisciplinary
Zichang Zhang, Renquan Wang, Ying Liu
Summary: The hardness of cold-sprayed coatings is higher than that of corresponding powders and bulk alloys, resulting in low toughness. In this study, preheat treatment of powder and post-heat treatment of the coatings were applied to improve the performance of cold-sprayed 7075 aluminum alloy coatings. The tensile strength of the coatings increased from 228 MPa to 309 MPa with elongation of 2.46% when subjected to increasing temperatures of post-heat treatment. Microstructure analysis showed that the improvement in mechanical properties was primarily due to an increase in the secondary phase. Preheating the 7075 aluminum alloy powder at 200°C and cold spraying resulted in coatings with improved mechanical properties, exhibiting a tensile strength of 302 MPa and an elongation of 3.87%. These findings provide valuable insights into the practical application of cold-spraying technology in the aviation field.
MATERIALS RESEARCH EXPRESS
(2023)
Article
Engineering, Mechanical
C. J. Williamson, A. R. Webb, L. N. Brewer, P. G. Allison, J. B. Jordon
Summary: In this study, the effect of powder heat treatment on the tensile and fatigue properties of freestanding cold sprayed specimens was investigated. Overaged and solutionized powder depositions showed improved ductility but decreased yield strength compared to the as-atomized condition. The solutionized powder specimen exhibited enhanced fatigue performance, attributed to the dissolution of intermetallics.
INTERNATIONAL JOURNAL OF FATIGUE
(2023)
Article
Materials Science, Multidisciplinary
Munsu Kim, Luke N. Brewer, Gregory W. Kubacki
Summary: This study investigates the initiation and propagation of localized corrosion on cold-sprayed aluminum alloy 2024 and 7075 deposits. The corrosion properties of the deposits were evaluated through electrochemical and immersion tests, and optical microscopy, scanning electron microscopy, energy dispersive x-ray spectroscopy, and x-ray diffraction were used for analysis. The results showed that microstructural characteristics, such as intermetallic network distribution and chemical composition, play a crucial role in the initiation and propagation of localized corrosion.
Article
Materials Science, Multidisciplinary
Yupeng Ren, Du Zhou, Guanwei Xie, Hanhui Liu, Xinyu Cui, Jiqiang Wang, Tianying Xiong
Summary: Dense and thick 7075 Al deposits were prepared using cold spray additive manufacturing (CSAM). Different heat treatments were applied to investigate the inherent anisotropy of the deposits. Microstructural and mechanical anisotropy was characterized using SEM, EBSD, Vickers micro-hardness tests, and tensile tests. The results showed that heat treatments did not eliminate microstructural anisotropy, although secondary phases preferentially nucleated at particle-particle interfaces. Mechanical anisotropy could be alleviated but not completely eliminated. The T6 sample exhibited the highest ultimate tensile strength and microhardness due to precipitation hardening. Sintering treatment greatly improved the elongation of CSAMed Al deposits.
MATERIALS CHARACTERIZATION
(2023)
Article
Materials Science, Multidisciplinary
Liu Xiao, Wang Chenyang, Li Xiaoping, Zhu Bin, Li Runzhou
Summary: TIG welding with self-made 7075 wire was used for butt welding of 7075 aluminum alloy. The effects of different currents on the microstructure and mechanical properties of the joint before and after heat treatment were studied. Before heat treatment, the presence of a large number of second phase precipitates with different shapes resulted in a joint strength of 274.84 MPa and elongation of 6.3%. After heat treatment, the dissolution of most second phase particles led to an increase in tensile strength to 511.75 MPa and elongation to 13.76%. Grain size became the decisive factor, with the low current joint exhibiting better mechanical properties due to fine grain size and more sufficient recrystallization degree.
MATERIALS RESEARCH EXPRESS
(2023)
Article
Materials Science, Multidisciplinary
Ping Zhang, Junling Liu, Yeran Gao, Zehua Liu, Qingqun Mai
Summary: This study investigates the effect of heat treatment process on the micro machinability of 7075 aluminum alloy. Different heat treatment processes are found to have varying effects on the cutting force, surface roughness, surface quality, and residual stress of the alloy. Changes in cutting parameters also influence the machining performance of the alloy differently under different heat treatment processes.
Article
Materials Science, Multidisciplinary
Dong Wu, Wenya Li, Kun Liu, Yang Yang, Sijie Hao
Summary: The study found that both annealing and solution aging can improve the mechanical properties of CSAMed AA2024/Al2O3 composite, with solution aging slightly better than annealing. After heat treatment, the fracture mechanism between adjacent particles changed, but the interfacial bonding between AA2024 and Al2O3 particles could not be improved.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2022)
Article
Automation & Control Systems
Jing Zhou, Xiaoming Yang, Baoyu Wang, Wenchao Xiao
Summary: This paper investigates the springback behavior of high strength aluminum alloy 7075 through experiments and finite element simulation. The study concludes that springback angles are directly proportional to punch radius, influenced by deformation temperature and blank holder force, with stress relaxation being the primary reason for reducing springback.
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2022)
Article
Materials Science, Coatings & Films
Archana Loganathan, Sara Rengifo, Alexander Franco Hernandez, Cheng Zhang, Arvind Agarwal
Summary: Nanodiamond, a superhard nanoparticle reinforcement, was successfully incorporated into an aluminum metal matrix composite coating, leading to significant improvements in hardness and wear properties of the coating.
SURFACE & COATINGS TECHNOLOGY
(2021)
Article
Metallurgy & Metallurgical Engineering
Hui-cheng Geng, Yi-lin Wang, Bin Zhu, Zi-jian Wang, Yi-sheng Zhang
Summary: The effect of solution treatment time on the post-formed plasticity and ductile fracture of 7075 aluminum alloy in the hot stamping process was investigated. Experimental and simulation results showed that there was no significant impact of extending the solution treatment time on the material anisotropy, but a longer solution treatment time could increase the fracture strain of the aluminum alloy during the hot stamping process.
TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA
(2022)
Article
Materials Science, Coatings & Films
Peter Totaro, Boris Khusid
Summary: This study demonstrated the overall advantages of multistep anodization for heat-treated wrought aluminum alloy AA7075-T6, showing that multistep processes can improve coating properties and morphology, increase abrasion resistance and hardness of the coatings.
SURFACE & COATINGS TECHNOLOGY
(2021)
Article
Materials Science, Multidisciplinary
Ruiming Su, Siyi Ma, Kaining Wang, Guanglong Li, Yingdong Qu, Rongde Li
Summary: The cyclic deep cryogenic treatment can enhance the hardness and corrosion resistance of aluminum alloy, with factors such as precipitation state, grain boundary precipitates, and precipitate free zones affecting the properties. The alloy treated with CDCT twice shows the best combination of hardness and corrosion resistance.
METALS AND MATERIALS INTERNATIONAL
(2022)
Article
Materials Science, Multidisciplinary
Yang Qi, Hu Zhang, Wenqi Zhang, Zhiheng Hu, Haihong Zhu
Summary: This paper presents a systematic study on the effect of heat treatment on the LPBF-fabricated Al-Cu-Li-Sc-Zr alloy. The study designed heat treatment temperatures based on phase transformation and precipitation kinetic analyses. Results show that different heat treatment temperatures have different effects on the mechanical properties of the alloy, with aging at 170 degrees C and 300 degrees C significantly increasing the yield strength, while solid solution treatment at 520 degrees C decreasing the tensile properties.
MATERIALS CHARACTERIZATION
(2023)
Article
Materials Science, Ceramics
Changxia Liu, Junlong Sun, Federico Venturi, Acacio Rincon Romero, Tanvir Hussain
Summary: In this study, alumina/graphene nanoplatelets (GNPs) coatings were successfully deposited on Al2O3/TiC substrate composites through Suspension High Velocity Oxy-Fuel (SHVOF) thermal spray, with laser microtexturing creating grid and line surface patterns. Tribological tests showed that the alumina/GNPs coated Al2O3/TiC substrate composites, especially those textured with grid patterns, exhibited improved wear behavior compared to uncoated samples.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2021)
Article
Energy & Fuels
Hetian Chi, Miguel A. Pans, Mingwen Bai, Chenggong Sun, Tanvir Hussain, Wei Sun, Yuge Yao, Junfu Lyu, Hao Liu
Summary: Stellite-6 demonstrated excellent corrosion resistance with the formation of protective Cr2O3 and CoCr2O4 layers, while NiAl coatings showed significantly reduced anti-corrosion performance due to chlorine attack, resulting in the formation of Al2O3 layer and eventual coating spallation in both systems.
Review
Materials Science, Ceramics
Daniel Tejero-Martin, Chris Bennett, Tanvir Hussain
Summary: This review presents the degradation mechanisms of SiC/SiC ceramic matrix composites in harsh environments, the role of environmental barrier coatings, and outlines the latest research directions for potential next-generation EBCs.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2021)
Article
Materials Science, Coatings & Films
S. Bano, A. Rincon Romero, D. M. Grant, A. Nommeots-Nomm, C. Scotchford, I Ahmed, T. Hussain
Summary: ICIE16 and 13-93 bioactive glasses were coated using a high-velocity oxy-fuel thermal spraying technique, with higher flame power resulting in denser, harder, and rougher coatings. The 13-93 coating showed higher stability and cell proliferation in simulated body fluid.
SURFACE & COATINGS TECHNOLOGY
(2021)
Article
Materials Science, Ceramics
Changxia Liu, Junlong Sun, Chao Wang, Fengxun Li, Tanvir Hussain
Summary: In this study, layered-structured Al2O3-based composites containing WC-Co, TiC, and MgO additives were prepared using hot-pressing sintering, achieving the best comprehensive mechanical characteristics with specific layer number and thickness ratio. The enhancement in the damage resistance of the composites was attributed to the mixed fracture modes, as well as microscopic and macroscopic crack deflection, bridging, and partial surface bonding that occurred in the layers. The mechanism of the effect of the layered structure on the toughness of the composites was discussed from a new theoretical perspective.
CERAMICS INTERNATIONAL
(2021)
Article
Chemistry, Physical
Jie Wang, Mengjuan Wu, Junpeng Liu, Fang Xu, Tanvir Hussain, Colin Scotchford, Xianghui Hou
Summary: The combination of robust porous metallic skeletons and icephobic filling material shows great potential for ice protection with long-term service time. The new design concept demonstrates good icephobicity and mechanical durability, making it a promising solution for reducing hazards caused by ice accretion on component surfaces in modern industries.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2021)
Article
Materials Science, Ceramics
Daniel Tejero-Martin, Mingwen Bai, Jitendra Mata, Tanvir Hussain
Summary: The research demonstrates that suspension high velocity oxy-fuel spraying can improve the porosity of thermal barrier coatings, and neutron scattering and image analysis techniques are helpful for studying porosity. X-ray diffraction and micro-hardness testing can provide insights into the effects of phase transformation on the mechanical properties of thermal barrier coatings.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2021)
Article
Materials Science, Multidisciplinary
F. Venturi, S. Kamnis, T. Hussain
Summary: A novel process incorporating carbon nano-tubes (CNT) into WC-Co thermal spray powder has been shown to increase microhardness but decrease fracture toughness of coatings. Improved carbide retention index and wear performance were achieved by lowering process temperature and adding CNT. Tailored choice of CNT concentration offers enhanced mechanical properties for different applications.
MATERIALS & DESIGN
(2021)
Article
Materials Science, Coatings & Films
S. Bano, A. Rincon Romero, Md Towhidul Islam, D. M. Grant, I. Ahmed, T. Hussain
Summary: Phosphate-based glass coatings were produced using SHVOF thermal spray process, with coatings at 75 kW flame power showing higher degradation and ion release rates due to their rougher surface. Raman analysis revealed a reduction in Q(2) species and an increase in Q(1) and Q(0) species in the coatings compared to the initial glass, leading to lower degradation rates and reduced ion release profiles.
JOURNAL OF THERMAL SPRAY TECHNOLOGY
(2021)
Article
Materials Science, Multidisciplinary
Nadimul Haque Faisal, Nazmi Sellami, Federico Venturi, Tanvir Hussain, Tapas Mallick, Firdaus Muhammad-Sukki, Alex Bishop, Hari Upadhyaya, Nirmal Kumar Katiyar, Saurav Goel
Summary: This study investigates the feasibility of manufacturing large-scale metamaterial coatings using the thermal spray technique. Comparing Cr2O3 and TiO2 coatings on different substrates, it was found that Cr2O3 coatings on aluminum substrates have improved optical performance, making them more suitable for fabricating opto-electronic devices. Through novel applications of thermal spray techniques, large-scale manufacturing of metamaterial coatings is shown to be possible, impacting electromagnetic wave propagation.
EMERGENT MATERIALS
(2021)
Article
Materials Science, Multidisciplinary
C. J. Akisin, F. Venturi, M. Bai, C. J. Bennett, T. Hussain
Summary: The study investigated the microstructure, mechanical properties, and wear resistance of low-pressure cold-sprayed Al-Mg/Al2O3 composite coatings. The results showed that the Al-10Mg/Al2O3 composite coating exhibited better wear resistance and lower specific wear rate compared to the Al-7Mg/Al2O3 composite coating, with abrasive wear identified as the primary wear mechanism. Notably, three-body abrasion mode was observed due to the entrapped Al2O3 particles between the Al2O3 counterbody and the coating contact surfaces.
EMERGENT MATERIALS
(2021)
Article
Engineering, Mechanical
K. Derelizade, F. Venturi, R. G. Wellman, A. Kholobysov, T. Hussain
Summary: WC-Co coatings have been used for decades as wear resistant coatings in aero engines, and introducing two different graphene nanoplatelets into the coating improved wear performance against alumina and reduced damage to the counter surface. Despite increasing the porosity of coatings, the addition of GNPs overall improved the wear performance of the system.
Review
Materials Science, Multidisciplinary
Nadimul Haque Faisal, Rehan Ahmed, Nazmi Sellami, Anil Prathuru, James Njuguna, Federico Venturi, Tanvir Hussain, Hamed Yazdani Nezhad, Nirmal Kumar Katiyar, Saurav Goel, Hari Upadhyaya, Shrikant Joshi, Firdaus Muhammad-Sukki, Radhakrishna Prabhu, Tapas Mallick, Will Whittow, Spyros Kamnis
Summary: This review consolidates scattered literature on thermally sprayed coatings with nonionizing electromagnetic wave absorption and shielding capabilities, exploring their potential value in diverse applications and identifying key research areas related to material selection and coating fabrication.
ADVANCED ENGINEERING MATERIALS
(2022)
Article
Automation & Control Systems
Halar Memon, Eskil Gjerde, Alex Lynam, Amiya Chowdhury, Geert De Maere, Grazziela Figueredo, Tanvir Hussain
Summary: This study proposes the first use of the active learning framework in thermal spray to enhance the accuracy of in-flight particle characteristics prediction. By implementing Bayesian Optimization, the maximum uncertainty is reduced, significantly improving the prediction accuracy and informativeness of the existing database. The AL-driven optimization not only accurately predicts the particle characteristics but also finds expected improvements around desired in-flight characteristics.
ENGINEERING APPLICATIONS OF ARTIFICIAL INTELLIGENCE
(2024)
Article
Materials Science, Multidisciplinary
Halar Memon, Kah Leng, Acacio Rincon Romero, Siddharth Lokachari, Nicholas Curry, Tanvir Hussain
Summary: This study evaluates the performance of thermal barrier coatings in terms of surface temperatures and resistance to a corrosive environment. It shows that suspension high-velocity oxy-fuel (SHVOF)-sprayed dense vertically cracked (DVC) topcoats perform better than suspension-plasma-sprayed (SPS) columnar structure (CS) topcoats. The DVC topcoats offer a balanced trade-off and exceed the durability of the CS topcoats.
ADVANCED ENGINEERING MATERIALS
(2023)
