Deposition behavior of thermally softened copper particles in cold spraying

Yin, Shuo; Wang, Xiaofang; Suo, Xinkun; Liao, Hanlin; Guo, Zhiwei; Li, Wenya; Coddet, Christian

doi:10.1016/j.actamat.2013.04.041

Cited by 162 publications

(56 citation statements)

References 32 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Several other studies have used FEM to investigate particle impact and deformation under various impact conditions and material combinations [45,[52][53][54][55][56][57][58]. Most of these studies are based on Lagrangian formulation implemented in commercial software.…”

Section: Numerical Simulationmentioning

confidence: 99%

Cold spraying – A materials perspective

et al. 2016

View full text Add to dashboard Cite

Cold spraying is a solid-state powder deposition process with several unique characteristics, allowing production of coatings or bulk components from a wide range of materials. The process has attracted much attention from academia and industry over the past two decades.The technical interest in cold spraying is twofold: first as a coating process for applications in surface technology, and second as a solid-state additive manufacturing process, offering an alternative to selective laser melting or electron beam melting methods. Moreover, cold spraying can be used to study materials behaviour under extremely high strain rates, high pressures and high cooling rates. The cold spraying process is thus considered to be relevant for various industrial applications, as well as for fundamental studies in materials science.This article aims to provide an overview of the cold spray process, the current understanding of the deposition mechanisms, and the related models and experiments, from a materials science perspective. IntroductionCold spraying (CS) is a solid-state material deposition technique, where micron-sized particles of a powder bond to a substrate as a result of high-velocity impact and the associated severe plastic deformation. Acceleration of particles to high velocities is obtained via expansion of a pressurised and (ironically) 'hot' gas through a diverging-converging nozzle.Despite heating the process gas -which is to provide higher acceleration of the gas and also to facilitate particle deformation through thermal softening -the feedstock remains in the solid state throughout the entire process; hence the name 'cold' spraying. This is to underline the contrast to conventional thermal spraying where particles are completely or partially molten upon impact onto the substrate. Alternative terminology includes cold gas spray, micro cold spray, cold gas dynamic spray, kinetic spray, supersonic particle deposition and metal powder application (MPA), all of which refer to the same principle of solid-state powder deposition as described above. CS is used for coating and repair. It is also used for additive manufacturing (AM) at relatively high deposition rates as compared to the methods based on selective laser or electron beam melting. The main advantage of CS is that it alleviates the problems associated with high temperature processing of materials, such as oxidation and unfavourable structural changes. It is possibly the only continuous method to produce bulk components of metastable materials that are available only in the powder form, e.g. as obtained from mechanical attrition or gas atomisation. The aim of the present paper is to provide an overview of CS from a materials perspective, particularly for a broader audience in materials research, e.g. with interest in dynamic phenomena, plasticity and phase transformations. In terms of application and properties, CS is perhaps best to be compared to thermal spraying processes, as in [24,25]. In view of relevant physical phenomena, however, CS is mos...

show abstract

Section: Numerical Simulationmentioning

confidence: 99%

Cold spraying – A materials perspective

et al. 2016

View full text Add to dashboard Cite

show abstract

“…However, for the same reason, it is difficult to be machined, which in turn limits its 27 direct applications. To overcome the limitations, diamond is normally applied in a form of thin, 28 wear-resistant coatings.…”

Section: Introduction 25mentioning

confidence: 99%

“…They ball was therefore the highest in all tests. It is known that copper is not a typical material for wear-resistance 302 coating due to its relatively low hardness [27]. Therefore, it is plausible to suggest that the wear-resistance …”

mentioning

confidence: 99%

Advanced diamond-reinforced metal matrix composites via cold spray: Properties and deposition mechanism

Yin

Xie

Čížek

et al. 2017

Composites Part B: Engineering

Self Cite

122

View full text Add to dashboard Cite

A note on versions:The version presented here may differ from the published version or from the version of record. If you wish to cite this item you are advised to consult the publisher's version. Please see the repository url above for details on accessing the published version and note that access may require a subscription. Abstract: Diamond-reinforced metal matrix composites (DMMC) have great potential for wear-resistance 11 applications due to the superior hardness of the diamond component. Cold spray as an emerging coating technique is 12 able to fabricate coatings or bulk materials without exceeding the material melting point, thereby significantly 13 lowering the risk of oxidation, phase transformation, and excessive thermal residual stress. In this paper, thick DMMC 14 coatings were deposited onto aluminum alloy substrate via cold spray of three feedstock powders: copper-clad 15 diamond and pure copper, and their mixtures. It was found that, due to its low processing temperature, cold spray is 16 able to prevent graphitization of the diamond in the DMMC coatings. Further to that, the original diamond phase was 17 almost completely retained in the DMMC coatings. In case of the coatings fabricated from copper-clad diamond 18 powders only, its mass fraction reached 43 wt.%, i.e. value higher than in any previous studies using conventional 19 pre-mixed powders. Furthermore, it was found that the added copper content powders acted as a buffer, effectively 20 preventing the fracture of the diamond particles in the coating. Finally, the wear test on the coatings showed that the 21 cold sprayed DMMC coatings had excellent wear-resistance properties due to the diamond reinforcement. 22

show abstract

“…The critical velocity of Cu particles deposited onto steel substrate is 800 m/s, which was reported by Zhou et al and Huang et al (Ref 26,27). The typical powder particle size for CS ranges from 5 to 50 lm, and the particle size of 20 lm has been chosen for simulation analysis in many literatures (Ref [28][29][30]. Therefore, a Cu particle size of 20 lm was selected for the simulation analysis in this study, which is also very close to the mean particle size of the Cu powder actually used in this study as shown in Fig.…”

Section: Modeling Descriptionmentioning

confidence: 99%

Beneficial Effects of Synchronous Laser Irradiation on the Characteristics of Cold-Sprayed Copper Coatings

Yang

et al. 2015

J Therm Spray Tech

View full text Add to dashboard Cite

Cold spray (CS) is an emerging materials deposition technique in which metallic particles are accelerated to a high velocity in a supersonic gas flow and then impinged onto a substrate to form a coating at a temperature well below the melting point of sprayed materials. The coating microstructure and properties are greatly influenced by particle preheating and substrate softening. This article presents a study of CS process of copper powder, with assistance of synchronous laser irradiation. The influence of synchronous laser irradiation on the Cu coating characteristics was investigated. The results show that the coating surface with laser irradiation is smoother than that without laser irradiation. The peak coating thickness is increased by about 70% as synchronous laser irradiation is employed, indicating an improvement in deposition efficiency. It is also found that with synchronous laser irradiation the coating is denser and the coating-substrate interfacial bonding is better as compared with that without laser irradiation. Moreover, the EDS and XRD analyses find Cu oxidation occurrence in the SLD coating, but the oxide is trivial. The aforementioned improvements on the coating largely arise from particle preheating and substrate softening by synchronous laser irradiation in the CS process.

show abstract

Deposition behavior of thermally softened copper particles in cold spraying

Cited by 162 publications

References 32 publications

Cold spraying – A materials perspective

Cold spraying – A materials perspective

Advanced diamond-reinforced metal matrix composites via cold spray: Properties and deposition mechanism

Beneficial Effects of Synchronous Laser Irradiation on the Characteristics of Cold-Sprayed Copper Coatings

Contact Info

Product

Resources

About