323 低圧型コールドスプレー法における粒子付着挙動に関する研究(OS13-1 コールドスプレー皮膜の付着メカニズムとその皮膜特性,OS13 コールドスプレー皮膜の付着メカニズムとその皮膜特性)

概要

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The principle of cold spray is that the solid particle impacts and deposits on the substrate without melting and phase transformation. However, the cold spray deposition mechanism has not been clear yet. It is considered that the substrate surface condition has influence on the deposition behavior of cold spraying, and also surface condition may be changed by a large number of particle impinging. Several surface parameters such as surface roughness, hardness, temperature and micro structure are changed within particle impacts. In this study, in order to determine the most affective factor of cold spray deposition, the several times traversed and sprayed specimens were prepared. The surface activation was controlled by the interval time between traverses. The number of deposited particles on the substrate at the several interval times was investigated. From the results, it was confirmed that the surface activation is more important factor for cold spray deposition.
一般社団法人日本機械学会の論文
2007-10-24