We found a match
Your institution may have rights to this item. Sign in to continue.
- Title
Improvement of Wear Performance of Nano-Multilayer PVD Coatings under Dry Hard End Milling Conditions Based on Their Architectural Development.
- Authors
Chowdhury, Shahereen; Beake, Ben D.; Yamamoto, Kenji; Bose, Bipasha; Aguirre, Myriam; Fox-Rabinovich, German S.; Veldhuis, Stephen C.
- Abstract
The TiAlCrSiYN-based family of PVD (physical vapor deposition) hard coatings was specially designed for extreme conditions involving the dry ultra-performance machining of hardened tool steels. However, there is a strong potential for further advances in the wear performance of the coatings through improvements in their architecture. A few different coating architectures (monolayer, multilayer, bi-multilayer, bi-multilayer with increased number of alternating nano-layers) were studied in relation to cutting-tool life. Comprehensive characterization of the structure and properties of the coatings has been performed using XRD, SEM, TEM, micro-mechanical studies and tool-life evaluation. The wear performance was then related to the ability of the coating layer to exhibit minimal surface damage under operation, which is directly associated with the various micro-mechanical characteristics (such as hardness, elastic modulus and related characteristics; nano-impact; scratch test-based characteristics). The results presented exhibited that a substantial increase in tool life as well as improvement of the mechanical properties could be achieved through the architectural development of the coatings.
- Subjects
PHYSICAL vapor deposition; MECHANICAL wear; SURFACE coatings
- Publication
Coatings (2079-6412), 2018, Vol 8, Issue 2, p59
- ISSN
2079-6412
- Publication type
Article
- DOI
10.3390/coatings8020059