304 ブラスト粗面の画像を用いた粗さ(接合・溶射)

概要

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To enhance the bonding strength of plasma sprayed coatings, substrate surfaces are roughened by the grit blasting. Therefore, by an understanding of the topological properties of roughened surfaces, an improvement of bonding strength is expected. The roughened surfaces are mainly evaluated surface roughness which is measured usually by the stylus method. This approach mostly neglects the complicated shapes of the roughened surfaces with hook-shapes, and it is anticipated to underestimate surface roughness defined. Thus, taking the cross-section of substrate surface, surface roughness considered with the hook-shapes is measured by the image analysis and computer. It was concluded that the surface roughness including hook-shapes the increase of approximately 20%, as compared with the values by the stylus method.
一般社団法人日本機械学会の論文
2000-06-23