Masters Theses

Abstract

"A novel model, rooted in time-dependent nucleation theory, has been created to explore how rapid solidification affects the extended solubility in metal alloys. This model was used to forecast solubility concerning undercooling in multiple binary aluminum (Al) alloys, and its predictions for both eutectic and peritectic systems closely match experimental data. It was demonstrated that this developed model surpasses the T0 line method, which does not consider the kinetic aspects of nucleation. Furthermore, the model can be extended to ternary and multicomponent phases by assuming that the scarcest element or the slowest diffusing component restricts nucleation. Al-Cu and Al-Cr, vital for aerospace and automobile applications, were investigated experimentally. Fiber Bragg Grating Sensors (FBGs) and K-type thermocouples were used to study the solidification characteristics of the alloys by measuring cooling rates at various positions in the cavity of a copper wedge mold. The result could be more consistent and reliable but can be improved upon in the future for further study. This new model's practicality and dependability make it a valuable tool for innovating alloy design in rapid solidification processes, such as additive manufacturing"-- Abstract, p. iv

Advisor(s)

Gu, Yijia

Committee Member(s)

Newkirk, Joseph William
Buchely, Mario F.

Department(s)

Materials Science and Engineering

Degree Name

M.S. in Materials Science and Engineering

Publisher

Missouri University of Science and Technology

Publication Date

Summer 2024

Pagination

x, 55 pages

Note about bibliography

Includes_bibliographical_references_(pages 32 and 53-54)

Rights

©2024 Azeez Aremu Akinbo , All Rights Reserved

Document Type

Thesis - Open Access

File Type

text

Language

English

Thesis Number

T 12438

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Metallurgy Commons

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