Results 211 to 220 of about 22,000 (264)

Gas-Substrate Heat Exchange During Cold-Gas Dynamic Spraying

Journal of Thermal Spray Technology, 2012
Abstract In this study, the temperature distribution of the surfaces of several substrates under an impinging gas jet from a cold spray nozzle was determined. A low-pressure cold-gas dynamic spraying unit was used to generate a jet of hot compressed nitrogen that impinged upon flat substrates. Computer codes based on a finite differences
McDonald, A. G., Ryabinin, A. N., Irissou, É., Legoux, J.-G.   +3 more
openaire   +2 more sources

How Cold is Cold Spray? An Experimental Study of the Heat Transfer to the Substrate in Cold Gas Dynamic Spraying

International Thermal Spray Conference, 2008
Abstract Time-resolved thermographic measurements were performed by a high speed infrared camera on a substrate surface during cold gas dynamic spraying without powder particles. Experiments were carried out on three commercial cold spray systems (Centerline SST, CGT Kinetiks 3000 and Inovati KM-CDS 2.2) spanning a wide range of gas ...
E. Irissou, J.-G. Legoux, C. Moreau, A.N. Ryabinin   +3 more
openaire   +1 more source

Development of multimaterial coatings by cold spray and gas detonation spraying

Surface and Coatings Technology, 2010
Abstract The basic objective is the development of multifunctional multimaterial protective coatings using cold spraying (CS) and computer controlled detonation spraying (CCDS). As far as CS is concerned, the separate injection of each powder into different zones of the carrier gas stream is applied.
A. Sova, D. Pervushin, I. Smurov
openaire   +1 more source

Chemical Interaction and Bonding in Cold Gas Spraying

International Thermal Spray Conference, 2011
Abstract The effect of chemical interaction compared to mechanical influences on the bonding mechanism in cold-gas spraying is a matter of great interest. In this study, combinations of different metals (Al, Cu, steel) sprayed onto galvanized surfaces (Cr, Ni) will be used for a first approach to gain information about substrate-particle
K.-R. Donner, R. Roedel, F. Gärtner, T. Klassen   +3 more
openaire   +1 more source

Tribological Properties of Cold Gas Spraying FeMnCrSi Alloy

International Thermal Spray Conference, 2021
Abstract FeMnCrSi and 316L alloy coatings were deposited on carbon steel substrates via high-pressure cold gas spraying and their microstructure, hardness, and wear resistance were obtained. Ball-on-disk testing (ASTM G99) was used to measure sliding wear behaviors.
Rodolpho F. Vaz, Sergi Dosta, Irene G. Cano, Anderson G.M. Pukasiewicz   +3 more
openaire   +1 more source

HVOF K2 vs. Cold Gas Spraying

International Thermal Spray Conference, 2011
Abstract A conventional GTV K2 kerosene fuel HVOF spraying system has been modified with the aim to achieve process conditions comparable to cold gas spraying concerning the average particle velocities and surface temperatures in the spray distance.
A. Wank, A. Schwenk
openaire   +1 more source

Localisation of deformation in cold gas dynamic spraying

Surface Engineering, 2016
One of the main specific features of the cold spray process is localisation during particle impact deformation. The resultant adiabatic shear instability is the phenomenon that is known to play a major role in the particle/substrate and particle/particle bonding and coating structure formation during the cold spray process.
O. Bielousova, J. Kocimski, R. Gr. Maev, I. Smurov, W. Scharff, V. Leshchynsky   +5 more
openaire   +1 more source

A Review of the Cold Gas Dynamic Spraying Process

2021
In this modern era, use of coatings on engineering materials has become highly inevitable. One such emerging coating method is the cold gas dynamic spraying. It is a solid-state process where deposition on to the surface of the material is done at high pressure and velocity. Adhesion of the powder to the substrate is possible because of the high amount
Sudesna Roy, Subhrasmita Tripathy
openaire   +1 more source

Deposition of brass coating by a method of cold gas-dynamic spraying

Physics and Chemistry of Materials Treatment, 2020
The structure and properties of a coating based on a mechanical mixture of Cu and Zn particles deposited on a steel substrate by gas-dynamic spraying are studied. X-ray diffraction and microspectral analysis show a significant effect of the deposition temperature on the content of Cu and Zn in the coating. When the deposition temperature increases from
V. E. Arkhipov, T. I. Muravyova, M. S. Pugachev, O. O. Schcherbakova   +3 more
openaire   +1 more source

Deformation Microstructure of Cold Gas Sprayed Coatings

MRS Proceedings, 2001
ABSTRACTCold Gas Spraying is a new coating technique, in which the formation of dense, tightly bonded coatings occurs only due to the kinetic energy of high velocity particles of the spray powder. These particles are still in the solid state as they impinge on the substrate.
C. Borchers, T. Stoltenhoff, F. Gäartner, H. Kreye, H. Assadi   +4 more
openaire   +1 more source