Pal, S and Babu, PN and Gargeya, BSK and Becquart, CS (2020) Molecular Dynamics simulation based investigation of possible enhancement in strength and ductility of nanocrystalline aluminum by CNT reinforcement. In: Materials Chemistry and Physics, 243 .
|
PDF
mat_che_phy_243_2020.pdf - Published Version Download (4MB) | Preview |
Abstract
Molecular dynamics (MD) based study of nanocrystalline (NC) Al and CNT (carbon nanotube) reinforced NC Al specimens having grain sizes ~9 nm have been carried out under tensile loading using hybrid potentials for different temperatures (10 K, 300 K and 681 K) at a particular strain rate of 1010 s−1. Structural variation and defect evolution during the deformation have been investigated. An enhancement in both strength and ductility is observed in case of the CNT embedded NC Al specimens with respect to NC Al specimen and such improvement is significant in case of (30,30) CNT embedded NC Al specimen. It is also found that NC Al matrix is fractured first, then the CNT at lower test temperature, whereas at high temperature, the CNT fractures before the matrix.
| Item Type: | Journal Article |
|---|---|
| Publication: | Materials Chemistry and Physics |
| Publisher: | Elsevier Ltd |
| Additional Information: | The copyright for this article belongs to the Author. |
| Keywords: | Carbon nanotubes; Ductility; Molecular dynamics; Nanocrystalline materials; Nanocrystals; Reinforcement; Strain rate; Tensile stress, High temperature; Molecular dynamics simulations; Nanocrystalline aluminum; Nanocrystallines; Strength and ductilities; Structural variations; Tensile loading; Test temperatures, Aluminum |
| Department/Centre: | Division of Mechanical Sciences > Materials Engineering (formerly Metallurgy) |
| Date Deposited: | 04 Jan 2023 10:03 |
| Last Modified: | 04 Jan 2023 10:03 |
| URI: | https://eprints.iisc.ac.in/id/eprint/79419 |
Actions (login required)
 |
View Item |
