Enabling Diamond Deposition with Cold Spray through the Coated Particle Method

This paper describes the application of Cold Spray to the deposition of a diamond grade pre-coated with Cu and Ni. Diamond powders are therefore used as the sole feedstock without the addition of separate binders (ductile phases) in cold spraying. The experimental results showed that it was possible to manufacture thick metal-diamond composite coatings with high diamond fraction in the coating but without phase change or graphitization. Results presented in this paper demonstrate the feasibility of a new methodology for the deposition of metal-diamond/ceramic composite coating with the cold spray technique.

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Microstructure, microhardness and tribological behavior of Al2O3 reinforced A380 aluminum alloy composite coatings prepared by cold spray technique

Surface and Coatings Technology ◽

10.1016/j.surfcoat.2018.07.039 ◽

2018 ◽

Vol 350 ◽

pp. 391-400 ◽

Cited By ~ 18

Author(s):

Xiang Qiu ◽

Naeem ul Haq Tariq ◽

Ji-qiang Wang ◽

Jun-rong Tang ◽

Lawrence Gyansah ◽

...

Keyword(s):

Aluminum Alloy ◽

Cold Spray ◽

Tribological Behavior ◽

Composite Coatings ◽

Alloy Composite ◽

Spray Technique

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Study on Corrosion Resistance and Wear Resistance of Zn–Al–Mg/ZnO Composite Coating Prepared by Cold Spraying

Coatings ◽

10.3390/coatings9080505 ◽

2019 ◽

Vol 9 (8) ◽

pp. 505

Author(s):

Xinqiang Lu ◽

Shouren Wang ◽

Tianying Xiong ◽

Daosheng Wen ◽

Gaoqi Wang ◽

...

Keyword(s):

Wear Resistance ◽

Composite Coatings ◽

Salt Spray ◽

Cold Spraying ◽

Neutral Salt ◽

Corrosion Resistant ◽

Electrochemical Tests ◽

Long Term Stability ◽

Spray Technique

Two composite coatings, Zn65Al15Mg5ZnO15 and Zn45Al35Mg5ZnO15, were prepared by the cold spray technique and were found to be compact, with no pits or cracks, based on scanning electron microscope (SEM) and energy-dispersive X-ray spectroscopy (EDS) investigations. The results of the neutral salt spray (NSS) and electrochemical tests showed that the two composite coatings possess a suitable corrosion performance. However, the Zn45Al35Mg5ZnO15 composite coatings were more corrosion resistant and allowed a better long-term stability. In addition, they were found to exhibit the best wear resistance and photocatalytic degradation efficiency.

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Fabrication and microstrain evolution of Al-TiB2 composite coating by cold spray deposition

Proceedings of the Institution of Mechanical Engineers Part L Journal of Materials Design and Applications ◽

10.1177/1464420717690559 ◽

2017 ◽

Vol 233 (6) ◽

pp. 1044-1052 ◽

Cited By ~ 1

Author(s):

H Chen ◽

Z Pala ◽

T Hussain ◽

DG McCartney

Keyword(s):

Composite Coating ◽

Cold Spray ◽

Spray Deposition ◽

Composite Coatings ◽

Cold Spraying ◽

X Ray Diffraction ◽

Composite Powders ◽

X Ray ◽

Micro Cracks ◽

Powder Particles

This paper investigates the microstructure evolution of Al-TiB2 coatings prepared by cold spraying. In situ Al-TiB2 composite powders containing uniformly distributed titanium diboride (TiB2) particles with a size range of 5–100 nm in the Al matrix and Al/Al-TiB2 blended powders were used as the cold spray feedstock for coating fabrication on aluminium alloy substrates. The microstructures of the feedstock powders and as-deposited coatings were characterised using scanning electron microscopy with energy dispersive X-ray analysis and X-ray diffraction. Al/Al-TiB2 blended powder coatings, compromising closely packed powder particles, were sprayed to an approximate thickness of 500 µm. Al-TiB2 composite coatings (approximately 50 µm thick) were obtained retaining the microstructure of the composite powders being sprayed and no evidence of detrimental phase transformation was found. However, micro-cracks were found to exist in the Al-TiB2 coating due to the hardly deformable powder particles. Little or no microstrain was revealed in the as-sprayed Al-TiB2 coating, indicating that annealing may have occurred due to the localised adiabatic heating during the spraying process. It is demonstrated that it is possible to fabricate the Al-TiB2 composite coating by cold spray deposition but further improvements to eliminate coating cracking are required.

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Effects of Cold-Spray Coatings on the Corrosion Properties of AZ80 Magnesium Alloy

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.573.43 ◽

2013 ◽

Vol 573 ◽

pp. 43-48 ◽

Cited By ~ 1

Author(s):

Y.J. Lee ◽

S.C. Wu ◽

J.H. Chen ◽

M.T. Yeh ◽

K.M. Lin ◽

...

Keyword(s):

Magnesium Alloy ◽

Cold Spray ◽

Salt Spray ◽

Cold Spraying ◽

Dynamic Polarization ◽

Corrosion Properties ◽

Spray Coatings ◽

Az80 Magnesium Alloy ◽

Spray Technique ◽

Coating Layers

In this study, the coating layers of IN625 and 301 stainless steel powders were deposited on the AZ80 magnesium alloy substrates by cold-spray technique. The crystal structures, cross-section of the coating layers and anti-corrosion capabilities were examined via XRD, SEM, potentio-dynamic polarization and salt spray test. Experimental results show that the coating layers have a few porosities. The AZ80 substratesexhibit a phenomenon of grain refining after the cold-spraying. Meanwhile, these coating layers could improve significantly the alloy’s corrosion resistance.

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Enhancement of the wear resistance of Ni-diamond composite coatings via glycine modification

Diamond and Related Materials ◽

10.1016/j.diamond.2020.108086 ◽

2020 ◽

Vol 109 ◽

pp. 108086

Author(s):

Yanheng Zhang ◽

Lu Feng ◽

Wei Qiu

Keyword(s):

Wear Resistance ◽

Composite Coatings ◽

Diamond Composite

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Synthesis of carbon nanotube reinforced Al matrix composite coatings via cold spray deposition

Surface and Coatings Technology ◽

10.1016/j.surfcoat.2020.126676 ◽

2021 ◽

Vol 405 ◽

pp. 126676

Author(s):

Xinliang Xie ◽

Zhanqiu Tan ◽

Chaoyue Chen ◽

Yingchun Xie ◽

Hongjian Wu ◽

...

Keyword(s):

Carbon Nanotube ◽

Cold Spray ◽

Matrix Composite ◽

Spray Deposition ◽

Composite Coatings ◽

Al Matrix Composite ◽

Al Matrix

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Investigation of the Splat Deposition Behavior onto a Composite Coating in Cold Spray

Materials Science Forum ◽

10.4028/www.scientific.net/msf.941.1639 ◽

2018 ◽

Vol 941 ◽

pp. 1639-1644

Author(s):

Xin Chu ◽

Phuong Vo ◽

Stephen Yue

Keyword(s):

Electron Microscope ◽

Composite Coating ◽

Cold Spray ◽

Spray Deposition ◽

Cold Spraying ◽

Single Component ◽

Optical Profilometry ◽

Deposition Behavior ◽

Polished Substrate ◽

Scanning Electron

The splat test is usually generated by low feed rate cold spraying of particles onto an as-polished substrate and it can be considered as a monolayer coating deposition. In this study, in order to investigate cold spray deposition mechanisms, Fe splats were sprayed onto the cold-sprayed single component 316L, Fe, and a composite 90Fe coatings. Results showed that although there is only 3.6 vol.% of 316L in the composite 90Fe coating, Fe splats exhibit a much better deposition behavior onto the 90Fe as compared with the single component Fe coating. To explain this observation, Fe splat samples were characterized using the scanning electron microscope (SEM), optical profilometry, splat adhesion tests, and splat nanoindentation. Finally, a preliminary explanation towards the Fe splat deposition behavior onto the composite coating was drawn.

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