| Autor: |
Kotkis, A. M., Shiryaev, A. M., Shchurov, A. F. |
| Zdroj: |
Powder Metallurgy and Metal Ceramics; June 1985, Vol. 24 Issue: 6 p468-472, 5p |
| Abstrakt: |
The cohesional rupture of the coatings is a result of growth of normal tensile cracks perpendicular to the basis metal and shear cracks propagating along the boundaries of layers formed owing to an uneven distribution of carbon-containing impurities over the coating thickness. The adhesional rupture of the coatings is brought about by steady growth of shear cracks propagating over the coating/basis interfaces and which are initiated by normal tensile cracks. The mechanism of fracture of the coating/basis composite can change depending on the ratio between the fracture toughness of the coating and the slip toughness of the layer boundaries. Macroscopically, this manifests itself in the fracture or removal of the coating from the basis material or in the fracture of the basis. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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