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Date Available

4-29-2026

Year of Publication

2026

Document Type

Master's Thesis

Degree Name

Master of Science in Manufacturing Systems Engineering (MSMSE)

College

Engineering

Department/School/Program

Mechanical Engineering

Faculty

I.S. Jawahir

Faculty

Julius Schoop

Abstract

The properties of materials processed through cold spray, and many other AM processes, are non-uniform and unpredictable. In most cases, post-processing is required to achieve desired properties and better uniformity. In cold spray, the typical method is an annealing heat treatment (AHT), which can improve bond strength, reduce porosity, and restore ductility, among other effects. AHT alone, however, is unable to completely remedy any of the unfavorable properties. In addition, long treatments at high temperatures are often needed for satisfactory results. This increases energy consumption and extends production times for products made by the process. For these reasons, numerous investigations have been conducted into alternative post-processing methods, many of which are only able to alter the properties of surface layers. This study investigates two field-assisted post-processing methods capable of affecting the full volume of cold-sprayed copper components. The first, magnetic field annealing (MFA), is shown to produce notable improvements in tensile yield strength and porosity over conventional AHT. Another field-assisted process, electropulse treatment, is briefly investigated as part of a preliminary study, constructing a setup for future work. The electropulse treatment has produced visible changes in particle interfaces, although collective material properties show no notable differences.

Digital Object Identifier (DOI)

https://doi.org/10.13023/etd.2026.163

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Archival

Funding Information

This study was funded by a scholarship and stipend provided by the Institute for Sustainable Manufacturing through a Graduate Research Assistantship.

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