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| Titre: | L'étude de l'interaction des fissures générées indentation Vickers dans le cas des pastilles de coupe WC-6.5%CO |
| Auteur(s): | Badani, Massinissa |
| Date de publication: | 22-jan-2025 |
| Collection/Numéro: | Mémoire de Master; |
| Résumé: | We studied in a first part tenacity of a nuance WC-6.5%Co, uses the linear mechanics of the Vickers indentation of it with a load P=100-500N. The length of the cracks 2c and the length of the diagonals 2a increase according to the load p and Hv hardness remains stable. The parameters 2a and 2c are used for given Kc tenacity by various formulas suggested in the literature and compared with values of reference, it was confirmed that the formula of SHETTY is most convenient.
In a second part we studied the interaction of the cracks by variation of the distance between two prints made under a load of 500N in positions top-top, top-with dimensions and with dimensions-with dimensions, the variation in the lengths of the cracks 2c and angle of deviation ϴ according to the distance d assure us the influence of the stress field in the small ones outdistances lower has 500µm and in distances higher 500 µm the stress field has is negligible |
| URI/URL: | http://dspace.univ-setif.dz:8888/jspui/handle/123456789/5036 |
| Collection(s) : | Mémoires de master
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