Faculty Advisor or Committee Member

Richard D. Sisson, Jr., Department Head

Faculty Advisor or Committee Member

Danielle Cote, Advisor

Identifier

etd-120318-144832

Abstract

For additive manufacturing, research has shown that the chemistry and microstructural properties of the feedstock powder can significantly affect the properties of the consolidated material. Thermal treatment and recycling parameters for powders used in both solid and liquid state processes can further affect the microstructure and properties of the consolidated parts. Understanding the powder microstructure and effects of powder pre-treatment can aid in optimizing the properties of the final consolidated part. This research proposes a method for the characterization and optimization of powder pre-processing thermal parameters using aluminum alloy powder as examples. Light microscopy, electron microscopy, and hardness were used to evaluate each condition.

Publisher

Worcester Polytechnic Institute

Degree Name

PhD

Department

Materials Science & Engineering

Project Type

Dissertation

Date Accepted

2018-12-03

Accessibility

Unrestricted

Subjects

aluminum powder additive manufacturing

Available for download on Friday, December 03, 2021

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