Yebeen Ji
(Graduate School of Frontier Sciences, The University of Tokyo)
;
Prince Valentine Cobbinah
(Graduate School of Frontier Sciences, The University of Tokyo)
;
Yoshiaki Toda
(Center for Basic Research on Materials/Data-driven Materials Research Field/Materials Modeling Group, National Institute for Materials Science)
;
Ryosuke Ozasa
(Graduate School of Engineering, Osaka University)
;
Takuya Ishimoto
(University of Toyama)
;
Takayoshi Nakano
(Graduate School of Engineering, Osaka University)
;
Yoko Yamabe-Mitarai
(Graduate School of Frontier Sciences, The University of Tokyo)
Collection
Citation
Description:
(abstract)Single and multiple bead tests were conducted on two bulk titanium alloys, (α+β) Ti-6Al-4V (Ti64) and near-α Ti-6Al-2Sn-4Zr-6Mo (Ti6246), to assess the dependence of the melt pool shape and the heat-affected zone on the α'-martensite formation. Although the exact mechanism remains unclear, the results suggest that prolonged thermal exposure plays a critical role. Notably, one alloy showed an a typical α' formation behavior: α' structures became finer with increasing energy density, indicating a unique interplay between alloy composition and localized thermal conditions.
Rights:
Keyword: Additive Manufacturing, Powder Bed Fusion,, Ti-6Al-4V, Ti-6Al-2Sn-4Zr-6Mo, volumetric energy density, fast cooling rate, melt pool shape
Date published:
Publisher:
Journal:
Conference:
日本Additive Manufacturing学会 第1回年次講演大会
(2025-09-01 - 2025-09-03)
Funding:
- 日本学術振興会 21H05198 (超温度場スーパーチタン創成科学)
- 公益財団法人軽金属奨学会 (教育研究資金･研究補助金)
Manuscript type: Author's version (Submitted manuscript)
MDR DOI: https://doi.org/10.48505/nims.5818
First published URL:
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Updated at: 2025-10-21 16:06:51 +0900
Published on MDR: 2025-10-21 15:43:43 +0900
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