0914 Effect of Spray Angle on Adhesion Strength of Aluminum Coating and Particle Impact Behavior on Ceramic Substrate in Cold Spray

2012 ◽  
Vol 2012.49 (0) ◽  
pp. 091401-091402
Author(s):  
Kazuhiko SAKAKI ◽  
Takuya IDEMOTO ◽  
Kei KONDO
Keyword(s):  
Adhesion Strength ◽  
Cold Spray ◽  
Aluminum Coating ◽  
Ceramic Substrate ◽  
Spray Angle ◽  
Impact Behavior ◽  
Particle Impact

A study on adhesion mechanism of aluminum coating on ceramic substrate by cold spray

2019 ◽  
Vol 2019.27 (0) ◽  
pp. 204
Author(s):  
Kazuhiko SAKAKI ◽  
Kiyotaka IIJIMA ◽  
Tomoki TSUBATA ◽  
Naofumi DENDA
Keyword(s):  
Cold Spray ◽  
Aluminum Coating ◽  
Ceramic Substrate ◽  
Adhesion Mechanism

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

Residual Stress Characterization From Numerical Analysis of the Multi-Particle Impact Behavior in Cold Spray

2017 ◽  
Author(s):  
Kando Hamiyanze Moonga ◽  
Tien-Chien Jen
Keyword(s):  
Residual Stress ◽  
Numerical Analysis ◽  
Compressive Stress ◽  
Cold Spray ◽  
High Speed ◽  
Compressive Residual Stress ◽  
Impact Behavior ◽  
Particle Impact ◽  
Cold Spray Process ◽  
Spray Process

In cold spray, bonding forms between a substrate and the particles and between particles through impact deformation at high strain rates. A prominent feature of the cold spray process is the compressive residual stress that arises during the deposition process. Compressive residual stress on the surface can be beneficial for fatigue resistance. As a post processing technique several applications require surface treatment processes that produce this state of stress on component surfaces such as shot peening, laser shock peening, ultrasonic impact treatment, low plasticity burnishing, etc. In all of these methods, the compressive stress is produced through plastic deformation of the surface region. In a similar manner, the cold spray process induces compressive stress by high speed impact of the sprayed particles on the surface, causing a peening effect. The effects of these variations in the properties of the coatings are rarely reported. Moreover, there are some applications which require minimal residual stresses in the components such as in optics. In this study, we have investigated the residual stress using numerical analysis of the multi-particle impact behavior in cold spray.

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