| About this Abstract |
| Meeting |
2024 TMS Annual Meeting & Exhibition
|
| Symposium
|
Advances in Surface Engineering VI
|
| Presentation Title |
Interface Engineered Diamond Coatings for Dry Machining Applications |
| Author(s) |
Ashok Kumar |
| On-Site Speaker (Planned) |
Ashok Kumar |
| Abstract Scope |
Diamond coatings using MPECVD method was deposited on WC-Co (6%) turning inserts was deposited under different surface pretreatments including chemical etchings, heat treatment and Cr/CrN/Cr interlayer to overcome the adhesion issues associate with the detrimental effect of cobalt and to reconstruct the surface in order to promote an interlocking behavior between the diamond film and the substrate. SEM, EDS), and XRD techniques were used to characterize the morphology, cobalt content, and nature of the substrate surfaces after each pretreatment; optical interferometry was utilized to characterize the surface roughness. Dry machining performance tests for all diamond coated turning inserts were performed on an aluminum alloy A390 H3. Correlations between the initial Rockwell indentation and tool life were established. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Ceramics, Thin Films and Interfaces, Mechanical Properties |