Additive friction stir deposition of AZ31B magnesium alloy

Sameehan S. Joshi; Shreyash M. Patil; Sangram Mazumder; Shashank Sharma; Daniel A. Riley; Shelden Dowden; Rajarshi Banerjee; Narendra B. Dahotre

Journal of Magnesium and Alloys (Sep 2022)

Additive friction stir deposition of AZ31B magnesium alloy

Sameehan S. Joshi,
Shreyash M. Patil,
Sangram Mazumder,
Shashank Sharma,
Daniel A. Riley,
Shelden Dowden,
Rajarshi Banerjee,
Narendra B. Dahotre

Affiliations

Sameehan S. Joshi: Department of Materials Science and Engineering, University of North Texas, 3940 N Elm St, Denton, TX 76207, USA; Center for Agile and Adaptive Additive Manufacturing, University of North Texas, 3940 N Elm St, Denton, TX 76207, USA
Shreyash M. Patil: Department of Materials Science and Engineering, University of North Texas, 3940 N Elm St, Denton, TX 76207, USA; Center for Agile and Adaptive Additive Manufacturing, University of North Texas, 3940 N Elm St, Denton, TX 76207, USA
Sangram Mazumder: Department of Materials Science and Engineering, University of North Texas, 3940 N Elm St, Denton, TX 76207, USA; Center for Agile and Adaptive Additive Manufacturing, University of North Texas, 3940 N Elm St, Denton, TX 76207, USA
Shashank Sharma: Department of Materials Science and Engineering, University of North Texas, 3940 N Elm St, Denton, TX 76207, USA; Center for Agile and Adaptive Additive Manufacturing, University of North Texas, 3940 N Elm St, Denton, TX 76207, USA
Daniel A. Riley: Department of Materials Science and Engineering, University of North Texas, 3940 N Elm St, Denton, TX 76207, USA; Center for Agile and Adaptive Additive Manufacturing, University of North Texas, 3940 N Elm St, Denton, TX 76207, USA
Shelden Dowden: Center for Agile and Adaptive Additive Manufacturing, University of North Texas, 3940 N Elm St, Denton, TX 76207, USA
Rajarshi Banerjee: Department of Materials Science and Engineering, University of North Texas, 3940 N Elm St, Denton, TX 76207, USA; Center for Agile and Adaptive Additive Manufacturing, University of North Texas, 3940 N Elm St, Denton, TX 76207, USA
Narendra B. Dahotre: Corresponding author at: Center for Agile and Adaptive Additive Manufacturing, University of North Texas, 3940 N Elm St, Denton, TX 76207, USA.; Department of Materials Science and Engineering, University of North Texas, 3940 N Elm St, Denton, TX 76207, USA; Center for Agile and Adaptive Additive Manufacturing, University of North Texas, 3940 N Elm St, Denton, TX 76207, USA

Journal volume & issue: Vol. 10, no. 9
pp. 2404 – 2420

Abstract

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The current work explored additive friction stir deposition of AZ31B magnesium alloy with the aid of MELD® technology. AZ31B magnesium bar stock was fed through a hollow friction stir tool rotating at constant velocity of 400 rpm and translating at linear velocity varied from 4.2 to 6.3 mm/s. A single wall consisting of five layers with each layer of 140×40×1 mm3 dimensions was deposited under each processing condition. Microstructure, phase, and crystallographic texture evolutions as a function of additive friction stir deposition parameters were studied with the aid of scanning electron microscopy including electron back scatter diffraction and X-ray diffraction. Both feed material and additively produced samples consisted of the α-Mg phase. The additively produced samples exhibited a refined grain structure compared to the feed material. The feed material appeared to have a weak basal texture, while the additively produced samples experienced a strengthening of this basal texture. The additively produced samples showed a marginally higher hardness compared to the feed material. The current work provided a pathway for solid state additive manufacturing of Mg suitable for structural applications such as automotive components and consumable biomedical implants.

Published in Journal of Magnesium and Alloys

ISSN: 2213-9567 (Online)
Publisher: KeAi Communications Co., Ltd.
Country of publisher: China
LCC subjects: Technology: Mining engineering. Metallurgy
Website: https://www.keaipublishing.com/en/journals/journal-of-magnesium-and-alloys/

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