Thermophysical properties of additively manufactured Ti-5553 alloy

The thermophysical properties of the additively manufactured, heat-treated Ti‐5Al‐5V‐5Mo‐3Cr alloy (Ti-5553), including heat capacity, thermal strain, and thermal diffusivity, were measured from room temperature to 1250 °C under a protective argon environment and compared to microstructural features...

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Bibliographic Details
Published in:Additive manufacturing 2023-08, Vol.76 (C), p.103769, Article 103769
Main Authors: Yang, Pin, Johnson, Kyle L., Carroll, Jay D., Buckner, Jessica L., Blea-Kirby, Mia A., Groves, Catherine, Coker, Eric N.
Format: Article
Language:English
Subjects:
Additive manufacturing
Thermophysical properties
Ti-5Al-5V-5Mo-3Cr
Ti5553
Titanium
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Summary:The thermophysical properties of the additively manufactured, heat-treated Ti‐5Al‐5V‐5Mo‐3Cr alloy (Ti-5553), including heat capacity, thermal strain, and thermal diffusivity, were measured from room temperature to 1250 °C under a protective argon environment and compared to microstructural features. These data are used to calculate the temperature dependence of thermal conductivity at 50 °C intervals. Changes observed in these thermal characterizations reflect the diffusion-controlled transformation sequence of a typical metastable β titanium alloy. Measurements were made on material in the as-printed β phase and in a heat treated 66% α phase. A comparison of these results to published data for conventional and additively manufactured material indicates that processing and heat treatment variations have little impact on the thermophysical properties for the Ti-5553 alloy, presumably due to the heavy alloying effect.
ISSN:2214-8604
2214-7810
DOI:10.1016/j.addma.2023.103769