Particle Impact Characteristics Influence on Cold Spray Bonding: Investigation of Interfacial Phenomena for Soft Particles on Hard Substrates

2021 ◽  
Author(s):  
A. Nastic ◽  
B. Jodoin ◽  
J.-G. Legoux ◽  
D. Poirier
Keyword(s):  
Cold Spray ◽  
Interfacial Phenomena ◽  
Particle Impact ◽  
Soft Particles ◽  
Impact Characteristics ◽  
Hard Substrates

Laser Assisted Cold Spray for Improved Adhesion of Soft Materials to Hard Substrates—Case Study for Copper Coatings on Steel

2021 ◽  
Author(s):  
Jean-Gabriel Legoux ◽  
Bruno Guerreiro ◽  
Dominique Poirier ◽  
Jason D. Giallonardo
Keyword(s):  
Cold Spray ◽  
Large Diameter ◽  
Soft Materials ◽  
Traverse Speed ◽  
Spot Size ◽  
Nitrogen Gas ◽  
High Adhesion ◽  
Copper Coatings ◽  
Helium Gas ◽  
Hard Substrates

Abstract In cold spray, high adhesion of soft materials on hard substrates is commonly achieved by using helium as the propelling gas. This is the case of copper coatings on steel where adhesion may reach values as high as 60 to 80 MPa (glue failure), however, helium is a limited, expensive natural resource, and the use of more abundant nitrogen gas is preferred in an industrial setting. Unfortunately, when using nitrogen gas, little to no adhesion is obtained. In order to eliminate the use of helium gas we studied how laser assisted cold spray could lead to an improvement in adhesion of nitrogen sprayed copper coatings. In this work, several laser parameters (e.g., power and spot size) and process parameters (traverse speed, relative position laser spot vs. gas jet) were varied at a coupon level. Upon optimization, an equivalent adhesion to the coatings prepared with helium was obtained. Furthermore, the cross section of the coatings showed that the copper particles penetrated the steel, similar to what is observed when using helium gas. Optimization of these parameters for application to large diameter (~559 mm) cylinders was also performed. A discussion on the mechanisms which contribute to achieving high adhesion considering the use of helium versus laser assistance is provided.

Interface melding in cold spray titanium particle impact

2014 ◽  
Vol 239 ◽  
pp. 191-199 ◽  
Author(s):  
Peter C. King ◽  
Christian Busch ◽  
Teresa Kittel-Sherri ◽  
Mahnaz Jahedi ◽  
Stefan Gulizia
Keyword(s):  
Cold Spray ◽  
Particle Impact ◽  
Titanium Particle

J0404-1-1 Improvement of Copper Coating Adhesion Strength by Slipping Particle Impact in Cold Spray

2009 ◽  
Vol 2009.6 (0) ◽  
pp. 345-346
Author(s):  
Koichi TAKADA ◽  
Kazuhiko SAKAKI ◽  
Koichiro NAGATA ◽  
Daiki YUTOH ◽  
Yasuo SHIMIZU
Keyword(s):  
Adhesion Strength ◽  
Cold Spray ◽  
Copper Coating ◽  
Particle Impact ◽  
Coating Adhesion

Cold spray particle impact simulation using the Preston-Tonks-Wallace plasticity model

2021 ◽  
Vol 191 ◽  
pp. 103557
Author(s):  
J.M. Schreiber ◽  
I. Smid ◽  
T.J. Eden ◽  
K. Koudela ◽  
D. Cote ◽  
...  
Keyword(s):  
Cold Spray ◽  
Particle Impact ◽  
Plasticity Model ◽  
Impact Simulation
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