Strain rate sensitivity behaviour of the thin films of Al, Al-Si and nanocomposite Al-Si-N: A comparative study

Soni, and Shekh, M J and Sharma, S K and Mishra, Suman K (2020) Strain rate sensitivity behaviour of the thin films of Al, Al-Si and nanocomposite Al-Si-N: A comparative study. Materials Characterization, 169 (IF-3.562).

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Abstract

A comparative study on the strain rate sensitivity behaviour of magnetron sputtered Al, Al-Si and Al-Si-N thin film deposited on stainless steel 304 substrate was carried out. Strain rate sensitivity and activation volume can provide a clear picture regarding the time dependent deformation mechanisms taking place in a material. The variation of the two key parameters, strain rate sensitivity and activation volume were investigated for the films of metal Al, metal alloy Al-Si and Al-Si-N nanocomposite coatings. As strain rate have a significant impact on the creep phenomenon and different materials respond differently when subjected to varying strain rates, a brief study on the creep behaviour is also presented here. The mechanical behaviour of the three different coatings was correlated with their structural properties for a deeper insight into the microstructural dependent dynamic mechanical behaviour.

Item Type: Article
Uncontrolled Keywords: strain rate sensitivity; activation volume; deformation mechanisms; thin films; alloying elements; activation volume; nanoindentation; nanocrystalline; deformation; tensile; indentation; evolution; hardness; tests
Subjects: Materials Science > Nano Composites
Divisions: Material Science and Technology
Depositing User: Users 5 not found.
Date Deposited: 25 Nov 2020 11:02
Last Modified: 25 Nov 2020 11:02
URI: http://eprints.nmlindia.org/id/eprint/8252

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