Enhancing Hypervelocity Impact Resistance of Titanium Substrate Using Ti/SiC Metal Matrix Nanocomposite Coating

Authors

Pouya Shojaei, University of Nevada, Las VegasFollow
Mohamed Trabia, University of Nevada, Las VegasFollow
Brendan O'Toole, University of Nevada, Las VegasFollow
Richard Jennings, University of Nevada, Las VegasFollow
Xing Zhang, University of Nevada, RenoFollow
Yiliang Liao, University of Nevada, RenoFollow

Document Type

Article

Publication Date

4-17-2020

Publication Title

Composites Part B: Engineering

Volume

194

First page number:

1

Last page number:

10

Abstract

This study evaluated the effect of applying a Ti/SiC Metal Matrix Nanocomposite (MMNC) coating to a Ti–6Al–4V substrate on enhancing the hypervelocity impact resistance. This coating was deposited using the Selective Laser Melting (SLM) technique. Hypervelocity impact experiments were performed using a two-stage light gas gun, with projectile velocities ranging from 3.7 to 5.4 km/s. Uncoated Ti–6Al–4V samples were also tested for comparison. The results showed that the Ti/SiC MMNC coating enhanced the hypervelocity impact resistance of the titanium substrate by reducing both impact crater depth and diameter. Additionally, this research presented an approach for modeling the experiments using Smoothed Particle Hydrodynamics (SPH). Damage parameters obtained from the simulations were in a great agreement with experimental results. This SPH model can be used to reduce the need for extensive experimentation.

Keywords

A. Metal-matrix composites (MMCs); B. Impact behavior; B. Mechanical properties; C. Computational modeling

Disciplines

Mechanical Engineering

Language

English

Repository Citation

Shojaei, P., Trabia, M., O'Toole, B., Jennings, R., Zhang, X., Liao, Y. (2020). Enhancing Hypervelocity Impact Resistance of Titanium Substrate Using Ti/SiC Metal Matrix Nanocomposite Coating. Composites Part B: Engineering, 194 1-10.
http://dx.doi.org/10.1016/j.compositesb.2020.108068