Multi-Cycle Nanoindentation Studies on TiN/TiAlN Nano-Multilayer Coating: Effects of Mechanical Properties and Coating Structure

Kaouthar Khlifi; Hafedh Dhifelaoui; Lassaad Zoghlami; Ahmed Ben Cheikh Larbi

doi:10.4028/www.scientific.net/AMM.798.367

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 798Multi-Cycle Nanoindentation Studies on TiN/TiAlN...

Multi-Cycle Nanoindentation Studies on TiN/TiAlN Nano-Multilayer Coating: Effects of Mechanical Properties and Coating Structure

Abstract:

TiAlN/TiN nanomultilayer coating was deposited on 100C6 steel (AISI 52100) substrate with the PVD technique using magnetron sputtering. Morphological examination showed the presence of domes and craters which are uniformly distributed over the entire surface.Microstructural observations revealed a columnar structure. Mechanical properties, plastic and elastic deformation resistance of TiAlN/TiN multilayer coating were studied using conventional indentation method. Multi-cycle nanoindentation technique, with variation of loading rate, was used to analyze the failure modes and mechanical behavior of TiN/TiAlN 200 cycles were performed and when the loading rate was increased from 200mN/mn to 600mN/mn, the mechanical proprieties were decreased.