Experimental investigation on the effect of multilayer TiCN/TiAlN/WC-C coating on the tribological behaviour of tool inserts for machining applications

Autor:	Ponappa Kannayiram, Rajasekar Rathanasamy, Moganapriya Chinnasamy, Mahalakshmi Somasundaram, Gobinath Velu Kaliyannan, Sathish Kumar Palaniappan, Samir Kumar Pal
Rok vydání:	2019
Předmět:	Materials science chemistry.chemical_element Nitride Tribology Carbide chemistry.chemical_compound chemistry Tungsten carbide Surface roughness General Materials Science Composite material Titanium aluminium nitride Tribometer Titanium
Zdroj:	International Journal of Materials Engineering Innovation. 10:186
ISSN:	1757-2762 1757-2754
DOI:	10.1504/ijmatei.2019.10023503
Popis:	This study investigates the effect of sliding speed and applied normal load on the wear and frictional behaviour of pure and coated (single layer titanium carbo nitride (TiCN), bilayer titanium aluminium nitride/tungsten carbide/carbide (TiAlN/WC-C), multilayer (TiCN/TiAlN/WC-C)) tool inserts. Dry sliding wear tests were performed using pin-on-disc tribometer. Higher hardness (25.83 GPa) and lower surface roughness (0.219 μm) are the main reasons for augmented performance of multi-layered tool in tribo tests. The result showed that multilayer coated tool depicts 217.67% improvement in wear resistance compared to uncoated tool under low load, while running at lower sliding speed. The same experiences nominal wear at higher sliding speed and showed 248.57% enhancement in wear resistance than uncoated tool. The average coefficient of friction for multi-layered tool under 15 N load portrays lower average coefficient of friction in the range of 0.47 compared to uncoated tool (0.53).
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6946ebe18cb5c7f3c71fe711d6ad18f5 https://doi.org/10.1504/ijmatei.2019.10023503 Zobrazit plný text záznamu