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Meeting

2026 TMS Annual Meeting & Exhibition

Symposium

Late News Poster Session

Presentation Title

E-39: Design and Characterization of Nature Inspired Gradient-Engineered Nano-Multilayered Ti/TiN Coatings

Author(s)

Madhuka Dilshan Dissanayaka, Georges Ayoub, Ioannis Mastorakos, Aikaterini NMI Bellou

On-Site Speaker (Planned)

Aikaterini NMI Bellou

Abstract Scope

The design of materials for extreme environments requires the strategic integration of advanced core and coating materials. Recent advancements have demonstrated that metal/ceramic multinanolayered coatings, composed of nanoscale metallic multilayers and refractory ceramic materials, can deliver superior structural performance, including increased strength, toughness, work hardening, shock resistance, and damage resistance. However, these promising results have been mainly limited to equi-thickness multilayer systems with extremely thin layers (1-3 nm). These layers limit practical applications due to manufacturing difficulties and potential softening caused by interfacial dislocation activity. To overcome these obstacles, inspired by nature’s hierarchical structures such as vertebral disks, we have sputtered Ti/TiN coatings with graded layer thicknesses and varying architectures. The scope of this study is to investigate the mechanical behavior of the graded nanostructures and compare it to that of their equi-thickness counterparts. Structural characterization using electron microscopy allows correlation of the observed behavior with the coatings’ microstructure.

Proceedings Inclusion?

Undecided

Keywords

Thin Films and Interfaces, Mechanical Properties, Characterization

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