Article
Materials Science, Coatings & Films
D. MacDonald, B. Jodoin
Summary: Through modeling and experimentation, this study demonstrates that in low-pressure cold spray, the enthalpy of the particle carrier gas has a minimal effect on the particle velocity, allowing for independent control of particle temperature. Preheating the particles to high temperatures without clogging was achieved using a novel particle preheater, resulting in a significant increase in DE compared to room temperature particle injection.
JOURNAL OF THERMAL SPRAY TECHNOLOGY
(2023)
Article
Thermodynamics
Sreedhar Unnikrishnakurup, Zheng Zhang, Debbie Hwee Leng Seng, Zhi-qian Zhang, Jisheng Pan, Vinod Kumar, Jonathan Zheng, Carlos Manzano, Andrew Ngo
Summary: In this study, we evaluated the thermal diffusivity and inherent porosity of cold-sprayed Ti-6Al-4V coatings on Al6061-T6 substrates using pulsed thermography and a multilayer analytical model. Our results showed a decrease in porosity and an increase in thermal diffusivity as the spray angle increased. We also developed a numerical model to simulate transient heat diffusion and confirmed the effectiveness of our methodology. This study provides insights into the thermal dynamics of cold-sprayed coatings and the interplay between processing parameters and thermal properties.
INTERNATIONAL JOURNAL OF THERMAL SCIENCES
(2024)
Article
Materials Science, Multidisciplinary
Tarun Babu Mangalarapu, S. Kumar, Mantripragada Ramakrishna, Phanikumar Gandham, Koppoju Suresh
Summary: In this study, the cold spray technique was used to deposit Al-6061 alloy powder coatings under different aging conditions. The results showed that the directly aged coatings exhibited similar hardness to the bulk material, while the hardness of the solutionized aged coatings was mainly influenced by the presence of needle-shaped beta precipitates. The bonding properties of the directly aged coatings were improved, and there was a significant improvement in bonding for the solutionized aged coatings.
Article
Materials Science, Coatings & Films
Bahareh Marzbanrad, Ehsan Toyserkani, Hamid Jahed
Summary: The study explored the effect of coating zinc onto AZ31B Mg alloy using cold spraying process parameters, revealing partial melting of zinc particles during impact and the formation of intermetallic compounds. The use of a zinc intermediate layer in multilayer deposition was found to create beneficial compressive residual stress in all three layers.
SURFACE & COATINGS TECHNOLOGY
(2021)
Article
Materials Science, Coatings & Films
Debbie Hwee Leng Seng, Zheng Zheng, Zhi-Qian Zhang, Tzee Luai Meng, Siew Lang Teo, Boon Hee Tan, Qizhong Loi, Jisheng Pan
Summary: This study investigated the influence of spray angle on the quality of Ti64 coatings deposited by cold spray (CS). It was found that spray angle is an effective process parameter to control porosity, pore alignment, and extent of surface compressive residual stress in the CS deposited materials.
SURFACE & COATINGS TECHNOLOGY
(2022)
Article
Engineering, Multidisciplinary
Abba A. Abubakar
Summary: This study presents a computationally efficient hybrid method for simulating cold spray coating deposition, which effectively predicts the thermo-mechanical deformation of the impacting particles and substrate, aiming to optimize the performance of coatings and substrates.
ENGINEERING SCIENCE AND TECHNOLOGY-AN INTERNATIONAL JOURNAL-JESTECH
(2023)
Article
Materials Science, Coatings & Films
Brian L. James, Venkata Satish Bhattiprolu, Grant A. Crawford, Bharat K. Jasthi
Summary: This study investigates the effect of secondary peening with zirconia beads on the microstructure and mechanical properties of Al6061 cold spray coatings. The results show that adding zirconia to the N-2 gas helps improve the microhardness, adhesion strength, and tensile strength of the coatings, but the coatings still exhibit brittle behavior.
SURFACE & COATINGS TECHNOLOGY
(2022)
Article
Materials Science, Coatings & Films
Amir Ardeshiri Lordejani, Luca Vitali, Mario Guagliano, Sara Bagherifard
Summary: The low working temperature of cold spray technology allows for the deposition of a wide variety of composite materials by mixing two or more constituent powders. A developed model pairs a probabilistic approach with finite element simulations to estimate the deposition efficiency of mixed powder and assess the actual composition of cold spray multi-material deposit with high accuracy.
SURFACE & COATINGS TECHNOLOGY
(2022)
Article
Materials Science, Coatings & Films
Liliana Zarazua-Villalobos, Nicolas Mary, Chrystelle Bernard, Kazuhiro Ogawa, Clement Boissy
Summary: Cold spray is an advanced 3D technique for building thick coatings using ductile powders. Deposition efficiency is directly linked to the parameters used, and can be improved by optimizing parameters, using thermally treated powders, or blending powders with hard particles. Mixing fresh and recycled powders can enhance coating deposition efficiency and reduce porosity.
JOURNAL OF THERMAL SPRAY TECHNOLOGY
(2022)
Article
Materials Science, Multidisciplinary
Chathuranga S. Witharamage, Mohammed A. Alrizqi, Jijo Chirstudasjustus, Ahmed A. Darwish, Troy Ansell, Andy Nieto, Rajeev K. Gupta
Summary: An Al-V alloy powder produced by high-energy ball milling was cold sprayed on an AA2024-T3 substrate, and the resulting coating exhibited superior corrosion resistance and wear resistance compared to the substrate.
Article
Materials Science, Coatings & Films
Meixin Chen, Hanqing Che, Stephen Yue
Summary: Mechanical substrate surface treatment can improve the efficiency of cold spray deposition, but it negatively affects the coating adhesion strength. There is an optimal roughness value for achieving the best deposition efficiency.
SURFACE & COATINGS TECHNOLOGY
(2022)
Article
Materials Science, Coatings & Films
Hanqing Che, Andre C. Liberati, Xin Chu, Meixin Chen, Amir Nobari, Phuong Vo, Stephen Yue
Summary: Cold spray technology can metallize polymers by spraying low melting point metal powders, improving their deposition efficiency. Lowering the melting points of feedstock powders can increase their deposition efficiency on polymeric substrates.
SURFACE & COATINGS TECHNOLOGY
(2021)
Review
Materials Science, Multidisciplinary
Moses A. Adaan-Nyiak, Ahmed A. Tiamiyu
Summary: This review evaluates the recent findings on particle bonding mechanisms in cold spray processing and concludes that no singular theory can explain bonding mechanisms. The dominant mechanism depends on the prevailing barriers unique to each impact scenario.
JOURNAL OF MATERIALS RESEARCH
(2023)
Article
Materials Science, Multidisciplinary
Congcong Cao, Wenya Li, Zhengmao Zhang, Xiawei Yang, Yaxin Xu
Summary: Cold spray additive manufacturing (CSAM) has great potential in titanium-alloy production, but producing dense and high-strength Ti alloy parts is challenging. Nozzle design and the use of helium propulsive gas play a crucial role in particle acceleration. Experimental results show that a longer convergent length of the nozzle improves the quality and performance of single-pass deposits.
Article
Materials Science, Coatings & Films
Jagannadh V. S. N. Sripada, Dulal Chandra Saha, Gobinda C. Saha, Hamid Jahed
Summary: This study aimed to synthesize a novel Al6061-ND metal matrix composite (MMC) particle feedstock through high-energy mechanical alloying (HE-MA) method for potential lightweighting applications. The optimized design parameters were composite batch design, milling time, and ball diameter. The addition of 1 wt% nanodiamond (ND) in the MMC composite produced superior particle size distribution (PSD) within a specific milling time. The Al6061-1wt.%ND MMC showed promise as feedstock for cold spray additive manufacturing of lightweight components.
SURFACE & COATINGS TECHNOLOGY
(2023)
Article
Materials Science, Coatings & Films
Ozan C. Ozdemir, Christian A. Widener, Michael J. Carter, Kyle W. Johnson
JOURNAL OF THERMAL SPRAY TECHNOLOGY
(2017)
Article
Materials Science, Coatings & Films
Ozan C. Ozdemir, Christian A. Widener
JOURNAL OF THERMAL SPRAY TECHNOLOGY
(2017)
Article
Materials Science, Coatings & Films
Venkata Satish Bhattiprolu, Kyle W. Johnson, Ozan C. Ozdemir, Grant A. Crawford
SURFACE & COATINGS TECHNOLOGY
(2018)
Article
Materials Science, Coatings & Films
Ozan C. Ozdemir, Qiyong Chen, Sinan Muftu, Victor K. Champagne
JOURNAL OF THERMAL SPRAY TECHNOLOGY
(2019)
Article
Materials Science, Coatings & Films
Enqiang Lin, Qiyong Chen, Ozan C. Ozdemir, Victor K. Champagne, Sinan Muftu
JOURNAL OF THERMAL SPRAY TECHNOLOGY
(2019)
Article
Materials Science, Multidisciplinary
Greg Christensen, Hammad Younes, George Hong, Ding Lou, Haiping Hong, Christian Widener, Craig Bailey, Rob Hrabe
Article
Materials Science, Coatings & Films
Enqiang Lin, Isaac Nault, Ozan C. Ozdemir, Victor K. Champagne, Aaron Nardi, Sinan Muftu
JOURNAL OF THERMAL SPRAY TECHNOLOGY
(2020)
Article
Materials Science, Multidisciplinary
Greg Christensen, Jack Yang, Ding Lou, George Hong, Haiping Hong, Charles Tolle, Christian Widener, Craig Bailey, Rob Hrabe, Hammad Younes
Article
Materials Science, Coatings & Films
Ozan C. Ozdemir, Patricia Schwartz, Sinan Muftu, Forest C. Thompson, Grant A. Crawford, Aaron T. Nardi, Victor K. Champagne, Christian A. Widener
Summary: This study found that increasing the powder stream loading can significantly reduce the deposition time of cold spray technology, while having minimal impact on the mechanical and microstructural properties of the specimens.
JOURNAL OF THERMAL SPRAY TECHNOLOGY
(2021)
Article
Materials Science, Multidisciplinary
Ozan Cagatay Ozdemir, Joseph Mitchell Conahan, Sinan Muftu
Article
Nanoscience & Nanotechnology
Ding Lou, Hammad Younes, Jack Yang, Bharat K. Jasthi, George Hong, Haiping Hong, Charles Tolle, Craig Bailey, Christian Widener, Rob Hrabe
Summary: This paper investigates the properties of coating materials incorporating carbon nanotubes and nanofibers. The results show that adding functionalized multiwalled carbon nanotubes significantly improves electrical resistance and corrosion resistance, while the addition of nanofibers enhances thermal conductivity. These nanocoatings, made from traditional coating materials, exhibit excellent adhesion and can be tailored for specific electrical and thermal properties.
Proceedings Paper
Materials Science, Multidisciplinary
Christian A. Widener, Marius Ellingsen, Michael Carter
THERMEC 2018: 10TH INTERNATIONAL CONFERENCE ON PROCESSING AND MANUFACTURING OF ADVANCED MATERIALS
(2018)
Proceedings Paper
Metallurgy & Metallurgical Engineering
Todd R. Curtis, Victor K. Champagne, Michael K. West, Reza Rokni, Christian A. Widener
FRICTION STIR WELDING AND PROCESSING IX
(2017)
Proceedings Paper
Metallurgy & Metallurgical Engineering
Bharat K. Jasthi, Todd Curtis, Christian A. Widener, Michael West, Brendan Kellogg
FRICTION STIR WELDING AND PROCESSING IX
(2017)