Work

Impact of Iron Contamination on Liquid Properties and Microstructural Evolution in AlSi20

Year: 2024

Type: article

Abstract: Additive manufacturing processes enable highly flexible and scalable shaping while maintaining rapid solidification processing conditions. This combination makes additive manufacturing particularly attractive for recycling contaminated alloys, as it allows critical brittle phases to be refined and utilized as alloying elements. However, little is known about the impact of contaminants on the fluid properties of liquid metals. Herein, thermodynamic modeling and experimental methods are combined to investigate the properties of AlSi20 and its contaminated variant, (AlSi20)95Fe5. The oscillating droplet method is used to experimentally determine surface tension and analyze solidified droplets to evaluate microstructure for different cooling rates. The findings indicate that while contaminants have a minor effect on fluid properties, they significantly influence microstructural properties.

Source: Advanced Engineering Materials

DOI: 10.1002/adem.202401541

Authors: Layla Shams Tisha, Anastasiya Toenjes, Nils Ellendt

Institutions: University of Bremen, Leibniz-Institut für Werkstofforientierte Technologien - IWT

Language: English

Topic: Thermodynamic and Structural Properties of Metals and Alloys

Subfield: Mechanical Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: hybrid

Estimated APC paid: $4,440

Funder: Deutsche Forschungsgemeinschaft