Masters Theses

Keywords and Phrases

AF9628 Low Alloy Steel; Cooling Rate; Directed Energy Deposition (DED); Laser Power; Micro-tensile Test; Scan speed

Abstract

"AF9628 low alloy steel is a novel steel known for its low cost, high hardness, and outstanding tensile performance. However, the processing methods of AF9628 have been less studied in the additive manufacturing field. As the balance of hardness and tensile results is closely related to the cooling process during manufacturing process window and its relationship to resultant tensile properties is explored. By using the DED method, specimens of this steel are successfully fabricated, and tensile test results are obtained. The AF9628 steel can be manufactured for tailored properties with the DED process by controlling the cooling method. This work is funded by ARL - GVSC under cooperative agreement W911NF-20-2-0251" -- Abstract, p. iii

Advisor(s)

Liou, Frank W.

Committee Member(s)

Midha, A. (Ashok)
Hosder, Serhat

Department(s)

Mechanical and Aerospace Engineering

Degree Name

M.S. in Manufacturing Engineering

Publisher

Missouri University of Science and Technology

Publication Date

Summer 2024

Pagination

xiii, 74 pages

Note about bibliography

Includes_bibliographical_references_(pages 66-68)

Rights

©2024 Mianqing Yang , All Rights Reserved

Document Type

Thesis - Open Access

File Type

text

Language

English

Thesis Number

T 12434

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