Improved mechanical properties of β metastable Ti alloys processed by laser powder bed fusion
(2023) Materials Science and Engineering: A — Vol. 887, p. 145755 (2023)
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- Abstract
- This study proposes a thorough investigation of the mechanical properties of two ß metastable titanium alloys (Ti‐12Mo and Ti‐8.5Cr‐1.5Sn (wt %)) processed by laser powder bed fusion. Particular emphasis is put on the influence of chemical homogenization and defects formation as a function of the processing parameters. It is demonstrated that the Transformation / Twinning – induced plasticity (TRIP/TWIP) mechanisms already revealed as beneficial in the case of wrought alloys, still bring a larger work hardening level and a larger ductility in the case of laser powder bed fusion (L‐PBF) processing. Improved mechanical properties in terms of yield and ultimate tensile strengths with similar uniform deformation compared to the wrought counterparts are thus achieved after L‐PBF and a very short annealing.
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Duchaussoy, A., Marteleur, M., Jacques, P., & Choisez, L. (2023). Improved mechanical properties of β metastable Ti alloys processed by laser powder bed fusion. Materials Science and Engineering: A, 887, 145755. https://doi.org/10.1016/j.msea.2023.145755 (Original work published 2023)