Hardness Distribution of Al2050 Parts Fabricated Using Additive Friction Stir Deposition

Hamed Ghadimi; Huan Ding; Selami Emanet; Mojtaba Talachian; Chase Cox; Michael Eller; Shengmin Guo

doi:10.3390/ma16031278

Materials (Feb 2023)

Hardness Distribution of Al2050 Parts Fabricated Using Additive Friction Stir Deposition

Hamed Ghadimi,
Huan Ding,
Selami Emanet,
Mojtaba Talachian,
Chase Cox,
Michael Eller,
Shengmin Guo

Affiliations

Hamed Ghadimi: Department of Mechanical & Industrial Engineering, Louisiana State University, Baton Rouge, LA 70803, USA
Huan Ding: Department of Mechanical & Industrial Engineering, Louisiana State University, Baton Rouge, LA 70803, USA
Selami Emanet: Department of Mechanical & Industrial Engineering, Louisiana State University, Baton Rouge, LA 70803, USA
Mojtaba Talachian: Department of Mechanical & Industrial Engineering, Louisiana State University, Baton Rouge, LA 70803, USA
Chase Cox: MELD Manufacturing Corporation, 200 Technology Dr, Christiansburg, VA 24073, USA
Michael Eller: Lockheed Martin Space-Michoud, New Orleans, LA 70129, USA
Shengmin Guo: Department of Mechanical & Industrial Engineering, Louisiana State University, Baton Rouge, LA 70803, USA

DOI: https://doi.org/10.3390/ma16031278
Journal volume & issue: Vol. 16, no. 3
p. 1278

Abstract

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The solid-state additive friction stir deposition (AFSD) process is a layer-by-layer metal 3D-printing technology. In this study, AFSD is used to fabricate Al–Cu–Li 2050 alloy parts. The hardness values for various regions of the as-deposited built parts are measured, and the results are contrasted with those of the feedstock material. The as-fabricated Al2050 parts are found to have a unique hardness distribution due to the location-specific variations in the processing temperature profile. The XRD results indicate the presence of the secondary phases in the deposited parts, and EDS mapping confirms the formation of detectable alloying particles in the as-deposited Al2050 matrix. The AFSD thermal–mechanical process causes the unique hardness distribution and the reduced microhardness level in the AFSD components, in contrast to those of the feedstock material.

Published in Materials

ISSN: 1996-1944 (Online)
Publisher: MDPI AG
Country of publisher: Switzerland
LCC subjects: Technology: Electrical engineering. Electronics. Nuclear engineering; Technology: Engineering (General). Civil engineering (General); Science: Natural history (General): Microscopy; Science: Physics: Descriptive and experimental mechanics
Website: http://www.mdpi.com/journal/materials/

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