Evaluating the intrinsic resistance to balling of alloys: A High-throughput physics-informed and data-enabled approach

Brent Vela; Seth Mehalic; Sofia Sheikh; Alaa Elwany; Ibrahim Karaman; Raymundo Arróyave

Additive Manufacturing Letters (Dec 2022)

Evaluating the intrinsic resistance to balling of alloys: A High-throughput physics-informed and data-enabled approach

Brent Vela,
Seth Mehalic,
Sofia Sheikh,
Alaa Elwany,
Ibrahim Karaman,
Raymundo Arróyave

Affiliations

Brent Vela: Corresponding author.; Department of Materials Science and Engineering, Texas A&M University, College Station, TX 77843, USA
Seth Mehalic: Department of Materials Science and Engineering, Texas A&M University, College Station, TX 77843, USA
Sofia Sheikh: Department of Materials Science and Engineering, Texas A&M University, College Station, TX 77843, USA
Alaa Elwany: Department of Materials Science and Engineering, Texas A&M University, College Station, TX 77843, USA; Department of Industrial and Systems Engineering, Texas A&M University, College Station, TX 77843, USA
Ibrahim Karaman: Department of Materials Science and Engineering, Texas A&M University, College Station, TX 77843, USA; Department of Mechanical Engineering, Texas A&M University, College Station, TX 77843, USA
Raymundo Arróyave: Department of Materials Science and Engineering, Texas A&M University, College Station, TX 77843, USA; Department of Mechanical Engineering, Texas A&M University, College Station, TX 77843, USA; Department of Industrial and Systems Engineering, Texas A&M University, College Station, TX 77843, USA

Journal volume & issue: Vol. 3
p. 100085

Abstract

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To date, the vast majority of work on metal additive manufacturing (AM) has been framed in terms of the need to tune processing conditions for a particular AM technology in order to print conventional alloys, oftentimes developed for fabrication methods other than AM. This approach overlooks the fact that historically, many engineering alloy system has been designed with a particular processing route in mind, e.g., ingot metallurgy, powder metallurgy, rapid quenching, etc. There are thus significant opportunities to design alloys specifically for AM. A key challenge is that alloy design requires performance metrics that can be optimized by exploring the alloy chemistry space. Here, we present a study in which we examine how intrinsic thermophysical properties can be used to estimate performance metrics related to the behavior of a solidifying metal droplet under AM-relevant conditions. By identifying these intrinsic properties, it is possible to directly incorporate ‘intrinsic printability’, specifically ‘intrinsic resistance to balling’, into AM-focused alloy design.

Published in Additive Manufacturing Letters

ISSN: 2772-3690 (Online)
Publisher: Elsevier
Country of publisher: Netherlands
LCC subjects: Technology: Technology (General): Industrial engineering. Management engineering
Website: https://www.journals.elsevier.com/additive-manufacturing-letters/

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