Date of Award
2024
Document Type
Thesis
Degree Name
Master of Science (MS)
Department
Materials Science
Committee Chair
Judith Schneider
Committee Member
Jeffrey Weimer
Committee Member
Nathan Spulak
Research Advisor
Judith Schneider
Subject(s)
Inconel--Mechanical properties, Additive manufacturing
Abstract
The properties of Inconel 718 (IN718) are dependent on the elemental composition and microstructure. Applications using IN718 include rocket and jet engine parts. These parts are often complex and difficult to machine, making IN718 ideal for additive manufacturing processes such as laser-powder bed fusion (L-PBF). The various phases that form in IN718 rely on the niobium (Nb) content including the carbides. The precipitates also include Nb in the strengthening phases of gamma prime and gamma double prime. Overaging of gamma double prime transforms the metastable phase into the stable delta phase, which also controls grain size. This study evaluates the effects of reducing carbon content on phases and properties of IN718.
Recommended Citation
Scott, Glenn "Joey", "The effects of reducing carbon content in the processing of superalloy Inconel 718" (2024). Theses. 689.
https://louis.uah.edu/uah-theses/689