Year: 2013
Type: dissertation
Abstract: The cold spray process is an additive manufacturing technology primarily suited for ductile metals, and mainly utilized in coating surfaces, manufacturing of freeform parts and repair of damaged components. The process involves acceleration of solid micro-particles in supersonic gas flow and coating build-up by metal bonding upon high velocity impact (300-1200 m/s) onto a substrate. Coating deposition relies on the kinetic energy (impact velocity) of the particles. The main objective of this research was to investigate the mechanics of metal bonding upon high strain-rate deformation in order to improve the technological implementation of the process. The research covers a wider range of impact conditions than those directly associated with cold spray, in order to reveal the governing mechanisms of particle impact and rebound.
DOI: 10.17760/d20003051
Author: Baran Yildirim
Institution: Northeastern University
Language: English
Subfield: Mechanics of Materials
Field: Engineering
Domain: Physical Sciences
Open Access status: green
Funder: National Science Foundation
OpenAlex ID: W4230140964