발간논문

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Vol.33, No.1, 73 ~ 79, 1995
Title
The New Measuring Technology for Adhesion Strength of TiN or Al Coatings on HSS Substrates
조영래Young Rae Cho, Eckard Fromm
Abstract
The adhesion strength of do magnetron sputtered TiN or Al coatings on polished high speed steel(HSS) substrates have been measured by two new methods. The most critical problem for the application of new developed three point bend test and modified shear test is to prepare a sample with a notch which initiates crack propagation at the coating/substrate interface. Three point bend test and modified shear test provide interface fracture toughness K_c and interface shear strength τ_B, respectively. These data were compared with results obtaind by the scratch test in order to show the applicability of the individual techniques for the determination of the adhesion strength. The results obtaind so far demonstrate that the new methds are good applicable to measuring the adhesion strength of various coating systems.
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