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Alloys for Additive Manufacturing Symposium 2022 (AAMS22)
München, Germany｜ September 12 – 14, 2022
This world-class event covers materials aspects of metal-based additive manufacturing technologies and is focused on the following topics:
Tailored alloys for AM and alloy optimization
Composite materials for and by AM
Advances in AM processing, including Multi-material approaches and hybrid processes
Microstructure and property control by AM processing
Lattice structures and metamaterials
The Alloys for Additive Manufacturing Symposium aims to be a venue for the discussion of all these issues by researchers in academia and industry. The symposium will also include a one-day event on September 14th dedicated to research by PhD students in the field of alloys for Additive Manufacturing.
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Alloy and Process Optimization for Additive Manufacturing using CALPHAD Tools
Presenter: A.N. Grundy Date: 12 September 2022 Time: 2:30pm – 2:50pm Location: Small lecture hall Session Name: Modelling and Simulations
Computational thermodynamics (CALPHAD) is a powerful tool widely applied in materials science for alloy design or process optimization. Thermodynamic databases developed through the CALPHAD approach can predict thermodynamic properties as well as the phase equilibria of commercial and also novel multi-component alloys.
Using Thermo-Calc and its add-on kinetic tools DICTRA for diffusion and TC-PRISMA for precipitation and growth calculations, important material properties relevant to additive manufacturing (AM) can be calculated. The following case studies for the AM of steels, nickel superalloys, titanium and aluminium alloys are presented:
Calculation of the solidification range and its importance for predicting cracking susceptibility.
Calculation of microsegregation during AM and consequences for the precipitation of unwanted phases and the formation of martensite and retained austenite.
Consequences of microsegregation on the post-build heat treatment strategy for eliminating composition gradients in the part.
Strategies for improving solidification microstructure.
Exploiting the cyclic thermal load of successive weld passes during AM for intrinsic heat treatment by precipitation and growth.