J043015 WC-12Co溶射被膜のせん断剥離強度の解析的検討([J043-01]厚膜形成技術と厚膜の機械特性評価(1))

Abstract

In this research, in order to investigate the adhesive strength of thermal sprayed coating, the scraping shearing test and the corresponding three-dimensional FEM analysis were performed. It was found that the adhesive strength of WC-Co thermal sprayed coating is depending on the dimension of the test piece and the loading position at around the interface. That is, the apparent critical shear stresses decrease with increasing height of the test piece and width of the test piece. Three-dimensional FEM analysis shows that the critical distributions of shearing stress and bending stress around at the interface edge depend on the dimensions of the test piece.