620 平滑基材上での溶射粒子偏平におけるスプラッシュ発生判定のための新因子提案(OS コーティング・溶射)

概要

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A transition phenomenon in flattening of thermal sprayed particles on a flat substrate surface has been investigated. Our previous results showed that as a substrate temperature increases, a splat morphology changes from irregular splash shape to disk shape transitionally at a certain substrate temperature range. In this study, Splashing parameter defined as K=We^<0.5> Re^<0.25> for a breakup phenomenon of a liquid film, was introduced as a judgment factor for splashing in flattening of thermal sprayed particles. Consequently, it was found that only Splashing parameter could not judge the transition behavior in a flattening of particles with solidification such as a thermal sprayed particle. Therefore, new judgment factor for the transition phenomenon in flattening of thermal sprayed particles was proposed.
一般社団法人日本機械学会の論文
2000-11-24