G0500-6-2 コールドスプレーにおける固体微粒子のガス速度への追従性に関する一次元解析([G0500-6]流体工学部門一般講演(6))

概要

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Thermal spraying is one of successful surface processing method that gives restoration of a new function on various mechanical components. The thermal spraying process accelerates the solid particle by a high temperature and a high velocity gas stream. After impacting on the surface of the substrates, the particles are formed into a coating. The present study is a gas-dynamic research on a cold spray, which is a cutting edge coating method. The cold spray process makes the solid particle impact on the substrate at a high velocity by the supersonic gas flow in the state of the solid phase to form a coating. It is experimentally clarified that the particle starts deposition on the substrate when particle velocity is exceeds a critical velocity. Therefore, it is important to clarify the tracking performance of solid particle to the gas velocity. In the present study, the tracking performance of solid particle to the gas velocity in the cold spray is clarified by the one-dimensional analysis.
一般社団法人日本機械学会の論文
2010-09-04