Abstract No.:

Attempt to improve characteristics of cold sprayed metallic coatings by ultrasonic impact treatment and friction stir processing

Kazuhiko Sakaki* / SHINSHU University, Japan
Kei Kondo/ Brother Industries, Ltd.(Graduate School, Shinshu Univ.), Japan
Koji Terasaka/ Graduate School, Shinshu Univ.,
Kazuhiro Nakata/ Joining & Welding Research Institute, Osaka Univ., Japan
Takuya Tsumura/ Okinawa National College of Technology, Japan

Cold spray (CS) process produces dense, low oxide coatings which can be used in such diverse applications as corrosion protection and metals repair. However, there is a limitation to apply to the industrial products because of the cost and undesirable coating properties such as pores in coatings by type of gas or combination of a powder and substrate materials. Therefore, an improvement of the CS coatings was attempted by an ultrasonic impact treatment (UIT) and Friction Stir Processing(FSP).

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