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Modeling the laser powder bed fusion of soft magnetic Fe-based metallic glass nanocomposites

Grant number: 24/03013-0
Support Opportunities:Scholarships abroad - Research
Effective date (Start): August 01, 2024
Effective date (End): July 31, 2025
Field of knowledge:Engineering - Materials and Metallurgical Engineering - Physical Metallurgy
Principal Investigator:Piter Gargarella
Grantee:Piter Gargarella
Host Investigator: Tarasankar Debroy
Host Institution: Centro de Ciências Exatas e de Tecnologia (CCET). Universidade Federal de São Carlos (UFSCAR). São Carlos , SP, Brazil
Research place: Pennsylvania State University, United States  
Associated research grant:20/06984-6 - Development of the additive manufacturing production chain of metal components, AP.NPOP


Soft ferromagnetic materials, crucial for enhancing electric power systems, are experiencing growing interest due to their low core losses and high saturation magnetic flux density. Fe-based metallic glass nanocomposites offer promising alternatives to conventional materials like silicon steels. However, their production via Laser Powder Bed Fusion (L-PBF) faces challenges, including microcracks formation due to high thermal stresses and heterogeneous distribution of crystalline phases. Mechanistic models, though not yet applied in this context, offer potential solutions by simulating complex interactions during the printing process. This study proposes employing a three-dimensional transient model by Mukherjee et al. to investigate L-PBF of Fe-based metallic glass nanocomposites. The model will be adapted to incorporate glass formation and crystallization dynamics, aiming to optimize processing parameters for defect-free production of bulk metallic glass composites with the desired fraction and homogeneity of crystalline phases.

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