Liquid metal infiltrated interpenetrating composites based on bulk metallic glass - processing, characterization and modeling

• Applicant: Professor Dr.-Ing. Kay A. Weidenmann
• Subject Area: Materials in Sintering Processes and Generative Manufacturing Processes ; Mechanical Properties of Metallic Materials and their Microstructural Origins
• Term: from 2018 to 2023
• Project identifier: Deutsche Forschungsgemeinschaft (DFG) - Project number 409809887

• Final Report Year: 2023

Final Report Abstract

The aim of the project was to produce a metal-matrix infiltration composite with a reinforcing phase of metallic glass (MG) of the alloy Ni60Nb20Ta20 and a eutectic AlSi12 matrix. During the fabrication of the preform, the originally planned sintering process was deviated from, as it did not result in a stable, infiltratable preform. Instead, the preform was successfully fabricated by powder bed-based laser melting, which offered additional advantages. Subsequently, the preform was successfully infiltrated with the AlSi12 matrix using gas pressure infiltration. In this process, the amorphous structure of the MG was largely preserved. Due to the fabrication process, the preform exhibits an anisotropic lattice-like structure, which was taken into account in the structural, mechanical and thermal characterization performed.

Publications

• Preparation of interpenetrating metal matrix composite based on metallic glass foams produced by gas pressure infiltration. 23rd ICCS, University of Porto, Portugal, 2020 (Vortrag)
  Dittmann, K.; Trauth, A. & Weidenmann, K. A.
  
• Preparation of interpenetrating metal matrix composite based on 3D-printed metallic glass foams produced by gas pressure infiltration. 24th ICCS, University of Porto, Portugal, 2021 (Vortrag)
  Dittmann, K.; Trauth, A. & Weidenmann, K. A.
  
• In-Situ Investigation and Numerical Simulation of a Metal Matrix Composite based on Metallic Glass (Ni60Nb20Ta20). 26th ICCS, University of Porto, Portugal, 2023 (Vortrag)
  Dittmann, K.; Trauth, A. & Weidenmann, K. A.
  
• In-situ investigation of damage behaviour of an interpenetrating metal matrix composite based on metallic glass (Ni60Nb20Ta20). 25th ICCS, University of Porto, Portugal, 2022 (Posterbeitrag)
  Dittmann, K.; Trauth, A. & Weidenmann, K. A.
  
• Investigation and Characterization of Thermal Properties of a Metal Matrix Composite reinforced with a Metallic Glass Foam (Ni60Nb20Ta20). Proceedings of the 20th ECCM, (pp. 298–305), Lausanne, Schweiz.
  Dittmann, K.; Trauth, A. & Weidenmann, K. A.
  
• Laser-Based Additive Manufacturing and Characterization of an Open-Porous Ni-Based Metallic Glass Lattice Structure (Ni60Nb20Ta20). 3D Printing and Additive Manufacturing, 11(2), e537-e547.
  Dittmann, Kerstin; Czink, Steffen; Dietrich, Stefan; Trauth, Anna & Weidenmann, Kay André
  
• Manufacturing and characterization of an interpenetrating metal matrix composite reinforced with a 3D-printed metallic glass lattice structure (Ni60Nb20Ta20). Composite Structures, 327, 117697.
  Dittmann, Kerstin; Trauth, Anna & André, Weidenmann Kay