Presentation Microstructure evolution and creep performance of LPBFed near α, and near β-Ti alloys

Yoko Yamabe-Mitarai (Department of Advanced Material Science, Graduate School of Frontier Sciences, The University of Tokyo) ; Prince Valentine Cobbinah (Department of Advanced Material Science, Graduate School of Frontier Sciences, The University of Tokyo) ; Yoshiaki Toda SAMURAI ORCID (Center for Basic Research on Materials/Data-driven Materials Research Field/Materials Modeling Group, National Institute for Materials Science) ; T. Matsunaga (JAXA) ; Ryosuke Ozasa (Graduate School of Engineering, Osaka University) ; Takuya Ishimoto (University of Toyama) ; Tsutomu Ito (Toyama Prefectural University) ; Takayoshi Nakano (Graduate School of Engineering, Osaka University)

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Yoko Yamabe-Mitarai, Prince Valentine Cobbinah, Yoshiaki Toda, T. Matsunaga, Ryosuke Ozasa, Takuya Ishimoto, Tsutomu Ito, Takayoshi Nakano. Microstructure evolution and creep performance of LPBFed near α, and near β-Ti alloys. https://doi.org/10.48505/nims.6035

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(abstract)

3D Additive Manufacturing (AM) is a promising processing method that enables the fabrication of complex shapes by melting and solidifying one layer at a time using a laser or electron beam. Additionally, in the AM process, super thermal field could have a significant impact on the microstructure of metallic materials and mechanical properties. In this study, the microstructure evolution produced by the laser powder bed fusion (LBPF) and subsequent heat treatment of near α-Ti (Ti-6Al-4Nb-4Zr, mass%) and near β-Ti alloys (Ti-6Al-2Sn-4Zr-6Mo) was investigated. Creep behavior of near α-Ti and near β-Ti alloys was also investigated, and the potential of LBPFed Ti alloys as jet engine materials is discussed.

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Keyword: Ti-6Al-4Nb-4Zr, Ti-6Al-2Sn-4Zr-6Mo, Laser powder bed fusion, Alpha formation, creep

Conference: Materials Research Meeting 2025 (2025-12-08 - 2025-12-13)

Funding:

  • JSPS JP21H05198 (Science for Super-Titanium Creation in Super Thermal Field)
  • JSPS JP23H00235
  • The Light Metal Educational Foundation

Manuscript type: Not a journal article

MDR DOI: https://doi.org/10.48505/nims.6035

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Updated at: 2025-12-19 16:31:19 +0900

Published on MDR: 2025-12-19 14:11:33 +0900

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