Abstract
Calculation of Phase Diagram (CALPHAD) method was used to develop an additive manufacturing (AM) titanium alloy design strategy for new alloys in the Ti-Al-Fe system. This design strategy includes five key criteria addressing AM-processing suitability, mechanical properties, and heat treatment capability. The methods for evaluating the design criteria were determined considering both physical implications and computational efficiency. Available experimental results agree well with CALPHAD predictions in the design map. CALPHAD method in this work can be applied for high-throughput early-stage assessments in large composition space for new AM titanium alloy development.
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Notes
All composition units in this manuscript are %, mass fraction unless otherwise stated.
Certain commercial equipment, instruments, or materials are identified in this paper to foster understanding. Such identification does not imply recommendation or endorsement by the National Institute of Standards and Technology, nor does it imply that the materials or equipment identified are necessarily the best available for the purpose. The opinions, recommendations, findings, and conclusions in this publication do not necessarily reflect the views or policies of NIST or the United States Government.
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Liang, Z., Kattner, U. & Campbell, C. Design Strategy for Additive Manufacturing Ti-Al-Fe Alloys with Calculation of Phase Diagram Method. Integr Mater Manuf Innov 10, 588–596 (2021). https://doi.org/10.1007/s40192-021-00237-0
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DOI: https://doi.org/10.1007/s40192-021-00237-0